ORCID Profile
0000-0003-2989-0329
Current Organisations
University of Southern Queensland - Springfield Campus
,
University of Southern Queensland
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In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Chemical Engineering | Chemical Engineering not elsewhere classified | Petroleum and Reservoir Engineering | Materials engineering | Catalysis and mechanisms of reactions | Catalytic Process Engineering | Carbon Capture Engineering (excl. Sequestration) | Environmental Technologies | Materials Engineering | Ceramics | Composite and Hybrid Materials | Composite and hybrid materials | Electrochemical energy storage and conversion
Oil and Gas Extraction | Industrial Energy Conservation and Efficiency | Management of Greenhouse Gas Emissions from Energy Activities (excl. Electricity Generation) | Management of Greenhouse Gas Emissions from Electricity Generation | Ceramics |
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1NR00847A
Abstract: Ferroelectric catalysts possess the advantages of boosted catalytic efficiency as a result of polarization, which suppresses electron–hole pair recombination, and superior selectivity via the ferroelectric switch.
Publisher: Wiley
Date: 25-09-2017
Publisher: Wiley
Date: 25-05-2020
Abstract: Electrochemical conversion of CO 2 into ethane is seldom observed because of the generally higher selectivity towards methane, ethylene, and ethanol. Consequently, little experimental evidence for its reaction mechanism exists and thus remains largely unknown. Now, by combining electrochemistry with in situ X‐ray absorption fine‐structure and in situ Raman techniques, iodide‐derived copper (ID‐Cu) and oxide‐derived copper (OD‐Cu) systems were studied to obtain a deeper understanding of the CO 2 to ethane mechanism. With trace iodine species on the surface and positively charged Cu species, production of ethane is significantly more favored on ID‐Cu compared to OD‐Cu, with higher selectivity and faster kinetics. For the first time, it is experimentally found that the formation of ethane follows the same pathway to ethylene and ethanol, and better stabilization of the late stage ethoxy intermediate can steer the reaction to ethane over ethanol.
Publisher: Elsevier BV
Date: 08-2020
Publisher: Elsevier BV
Date: 10-2008
Publisher: Wiley
Date: 25-10-2019
DOI: 10.1111/DME.13835
Abstract: In people with metformin-treated diabetes, to evaluate the risk of acute pancreatitis, pancreatic cancer and other diseases of the pancreas post second-line anti-hyperglycaemic agent initiation. People with Type 2 diabetes diagnosed after 2004 who received metformin plus a dipeptidyl peptidase-4 inhibitor (DPP-4i, n = 50 095), glucagon-like peptide-1 receptor agonist (GLP-1RA, n = 12 654), sulfonylurea (n = 110 747), thiazolidinedione (n = 17 597) or insulin (n = 34 805) for at least 3 months were identified in the US Centricity Electronic Medical Records. Time to developing acute pancreatitis, other diseases of the pancreas and pancreatic cancer was estimated, balancing and adjusting anti-hyperglycaemic drug groups for appropriate confounders. In the DPP-4i group, the adjusted mean time to acute pancreatitis was 2.63 [95% confidence intervals (CI) 2.38, 2.88] years time to pancreatic cancer was 2.70 (2.19, 3.21) years and time to other diseases of the pancreas was 2.73 (2.33, 3.12) years. Compared with DPP-4i, the insulin group developed acute pancreatitis 0.48 years (P < 0.01) earlier and the GLP-1RA group developed pancreatic cancer 3 years later (P < 0.01). However, with the constraint of no event within 6 months of insulin initiation, the risk of acute pancreatitis in the insulin group was insignificant. No other significant differences were observed between groups. No significant differences in the risk of developing pancreatic diseases in those treated with various anti-hyperglycaemic drug classes were found.
Publisher: Elsevier BV
Date: 05-2016
Publisher: Elsevier BV
Date: 12-2021
Publisher: American Chemical Society (ACS)
Date: 28-04-2023
Publisher: American Chemical Society (ACS)
Date: 18-08-2022
Abstract: Graphene-based materials are widely used in the field of immobilized enzymes due to their easily tunable interfacial properties. We designed hiphilic nanobiological interfaces between graphene oxide (GO) and lipase TL (
Publisher: American Scientific Publishers
Date: 03-2012
Abstract: Vertically aligned carbon nanotubes (VA-CNTs) with high purity have been grown on quartz substrate via the gas phase catalytic chemical vapour deposition (CVD) by using ferrocene as the catalyst source and c hor as the carbon source. The effects of catalyst concentration, flow rate and water assistance on the morphology and structure of VA-CNTs are investigated by SEM, TEM, Raman and XPS characterizations. Under the optimized CVD conditions with modest ferrocene concentration and flow rate, dense and well VA-CNT arrays have been obtained. The water concentration should be controlled to improve CNTs alignment and impurity without damaging the walls of CNTs.
Publisher: Wiley
Date: 25-09-2015
DOI: 10.1111/JOCN.12666
Abstract: We aimed to determine the feasibility of training cardiac nurses to evaluate left ventricular function utilising a semi-automated, workstation-based protocol on three dimensional echocardiography images. Assessment of left ventricular function by nurses is an attractive concept. Recent developments in three dimensional echocardiography coupled with border detection assistance have reduced inter- and intra-observer variability and analysis time. This could allow abbreviated training of nurses to assess cardiac function. A comparative, diagnostic accuracy study evaluating left ventricular ejection fraction assessment utilising a semi-automated, workstation-based protocol performed by echocardiography-naïve nurses on previously acquired three dimensional echocardiography images. Nine cardiac nurses underwent two brief lectures about cardiac anatomy, physiology and three dimensional left ventricular ejection fraction assessment, before a hands-on demonstration in 20 cases. We then selected 50 cases from our three dimensional echocardiography library based on optimal image quality with a broad range of left ventricular ejection fractions, which was quantified by two experienced sonographers and the average used as the comparator for the nurses. Nurses independently measured three dimensional left ventricular ejection fraction using the Auto lvq package with semi-automated border detection. The left ventricular ejection fraction range was 25-72% (70% with a left ventricular ejection fraction 2 weeks later) retest. It is feasible to train nurses to measure left ventricular ejection fraction utilising a semi-automated, workstation-based protocol on previously acquired three dimensional echocardiography images. Further study is needed to determine the feasibility of training nurses to acquire three dimensional echocardiography images on real-world patients to measure left ventricular ejection fraction. Nurse-performed evaluation of left ventricular function could facilitate the broader application of echocardiography to allow cost-effective screening and monitoring for left ventricular dysfunction in high-risk populations.
Publisher: Wiley
Date: 17-06-2021
Abstract: Single‐phase perovskite oxides that contain nonprecious metals have long been pursued as candidates for catalyzing the oxygen evolution reaction, but their catalytic activity cannot meet the requirements for practical electrochemical energy conversion technologies. Here a cation deficiency‐promoted phase separation strategy to design perovskite‐based composites with significantly enhanced water oxidation kinetics compared to single‐phase counterparts is reported. These composites, self‐assembled from perovskite precursors, comprise strongly interacting perovskite and related phases, whose structure, composition, and concentration can be accurately controlled by tailoring the stoichiometry of the precursors. The composite catalyst with optimized phase composition and concentration outperforms known perovskite oxide systems and state‐of‐the‐art catalysts by 1–3 orders of magnitude. It is further demonstrated that the strong interfacial interaction of the composite catalysts plays a key role in promoting oxygen ionic transport to boost the lattice‐oxygen participated water oxidation. These results suggest a simple and viable approach to developing high‐performance, perovskite‐based composite catalysts for electrochemical energy conversion.
Publisher: Oxford University Press (OUP)
Date: 26-08-2015
Abstract: Depression is common after a cardiac event however it often remains untreated. Previously, we reported the efficacy and feasibility of a 6-month tele-health programme (MoodCare), which integrates depression management into a cardiovascular disease (CVD) risk reduction programme for Acute Coronary Syndrome (ACS) patients with low mood. Here, we evaluate the long-term efficacy of the programme at 12-month follow-up. A two-arm, parallel, randomized design to compare the long-term effects of 'MoodCare' (n = 61) to usual care (UC) (n = 60) at 12 months. 121 ACS patients recruited from six hospitals in Victoria and Brisbane, Australia were randomized to a telephone-delivered cognitive behavioural therapy and risk-reduction programme or usual medical care. Mixed-model repeated measurements (MMRM) analysis was applied with results expressed as estimated marginal mean changes in depression and health-related quality of life (HRQOL) outcomes by group. After 12 months, treatment effects were observed for those with major depressive disorder (MDD) for PHQ-9 depression (MoodCare: mean score: 6.5 95% CI: 4.9-8.0 versus UC: 9.3 95% CI: 7.7-10.9, p = 0.012)) and SF-12 mental health scores (MoodCare: 42.5 95% CI: 39.8-45.2 versus UC: 36.8 95% CI: 34.1-39.6, p = 0.005). No beneficial treatment effects were observed in those with no MDD at baseline. After 12 months, MoodCare was superior to UC for improving mental health outcomes for those with a clinical diagnosis of major depression. Our findings support the implementation of depression-based interventions for cardiac patients with a clinical diagnosis of depression and provide evidence of longer term efficacy to one year.
Publisher: Elsevier BV
Date: 03-2011
Publisher: Elsevier BV
Date: 08-2016
DOI: 10.1016/J.IJCARD.2016.04.084
Abstract: Heart failure (HF) medications improve clinical outcomes, with optimal doses defined in clinical trials. Patient, provider and system barriers may limit achievement of optimal doses in real life settings, although disease management programs (HF-DMPs) can facilitate up-titration. Secondary analysis of a prospective cohort of 216 participants recently hospitalized with systolic HF, attending 5 HF-DMPs in Queensland, Australia. Medication history at baseline (6weeks after discharge) and 6months provided data to describe prescription rates, dosage and optimal titration of HF medications, and associations with patient and system factors were explored. At baseline, 94% were on an angiotensin converting enzyme inhibitor/angiotensin II receptor blocker (ACEI/ARB), 94% on a beta-blocker (BB) and 42% on a mineralocorticoid receptor antagonist (MRA). The proportion of participants on optimal doses of ACEI/ARB increased from 38% (baseline) to 52% (6months, p=0.001) and on optimal BB dose from 23% to 49% (p<0.001). Significant barriers to ACEI/ARB up-titration were body mass index (BMI)<25, female gender, polypharmacy, previously diagnosed HF, and tertiary hospital. Significant barriers for BB up-titration were BMI<25, previously diagnosed HF and non-cardiologist care. Effective up-titration in HF DMPs is influenced by patient, disease and service factors. Better understanding of barriers to effective up-titration in women, normal weight, and established HF patients may help provide targeted strategies for improving outcomes in these groups.
Publisher: Elsevier BV
Date: 05-03-2009
Publisher: Massachusetts Medical Society
Date: 23-06-2016
Publisher: Elsevier BV
Date: 02-2019
Publisher: Elsevier BV
Date: 04-2021
Publisher: American Chemical Society (ACS)
Date: 05-01-2021
Publisher: Elsevier BV
Date: 05-2021
Publisher: Elsevier BV
Date: 08-2022
Publisher: Wiley
Date: 27-10-2020
DOI: 10.1002/EJHF.2015
Publisher: Elsevier BV
Date: 12-2007
Publisher: Elsevier BV
Date: 08-2014
Publisher: Springer Science and Business Media LLC
Date: 22-08-2018
Publisher: Elsevier BV
Date: 12-2013
DOI: 10.1038/GIM.2013.44
Abstract: Genetic testing for hypertrophic cardiomyopathy has been commercially available for almost a decade however, low mutation detection rate and cost have hindered uptake. This study sought to identify clinical variables that can predict probands with hypertrophic cardiomyopathy in whom a pathogenic mutation will be identified. Probands attending specialized cardiac genetic clinics across Australia over a 10-year period (2002-2011), who met clinical diagnostic criteria for hypertrophic cardiomyopathy and who underwent genetic testing for hypertrophic cardiomyopathy were included. Clinical, family history, and genotype information were collected. A total of 265 unrelated in iduals with hypertrophic cardiomyopathy were included, with 138 (52%) having at least one mutation identified. The mutation detection rate was significantly higher in the probands with hypertrophic cardiomyopathy with an established family history of disease (72 vs. 29%, P < 0.0001), and a positive family history of sudden cardiac death further increased the detection rate (89 vs. 59%, P < 0.0001). Multivariate analysis identified female gender, increased left-ventricular wall thickness, family history of hypertrophic cardiomyopathy, and family history of sudden cardiac death as being associated with greatest chance of identifying a gene mutation. Multiple mutation carriers (n = 16, 6%) were more likely to have suffered an out-of-hospital cardiac arrest or sudden cardiac death (31 vs. 7%, P = 0.012). Family history is a key clinical predictor of a positive genetic diagnosis and has direct clinical relevance, particularly in the pretest genetic counseling setting.
Publisher: American Chemical Society (ACS)
Date: 26-09-2014
DOI: 10.1021/EF401399C
Publisher: Oxford University Press (OUP)
Date: 21-01-2019
DOI: 10.1093/EHJCI/JEY220
Abstract: Myocardial oxygenation is impaired in hypertrophic cardiomyopathy (HCM) patients with left ventricular hypertrophy (LVH), and possibly also in HCM gene carriers without LVH. Whether these oxygenation changes are also associated with abnormalities in diastolic function or left ventricular (LV) strain are unknown. We evaluated 60 subjects: 20 MYBPC3 gene positive patients with LVH (G+LVH+), 18 MYBPC3 gene positive without LVH (G+LVH−), 11 gene negative siblings (G−), and 11 normal controls (NC). All subjects underwent 2D transthoracic echocardiography and cardiovascular magnetic resonance imaging for assessment of ventricular volumes, mass, and myocardial oxygenation at rest and adenosine stress using the blood oxygen level dependent (BOLD) technique. Maximal septal thickness was 20 mm in the G+LVH+ group, vs. 9 mm for the G+LVH− group. As expected, the G+LVH+ group had a more blunted myocardial oxygenation response to stress when compared with the G+LVH− group (−5% ± 3% vs. 2% ± 4%, P 0.05), G− siblings (−5% ± 3% vs. 11% ± 4%, P 0.0001) and NC (−5% ± 3% vs. 15% ± 4%, P 0.0001). A blunted BOLD response to stress was also seen in G+LVH− subjects when compared with gene negative siblings (2% ± 4% vs. 11% ± 4%, P 0.05) and NC (15% ± 4%, P 0.050). G+LVH+ patients exhibited abnormal diastolic function including lower Eʹ, higher E to Eʹ ratio and greater left atrial area compared with the G+LVH− subjects who all had normal values for these indices. Myocardial deoxygenation during stress is observed in MYBPC3 HCM patients, even in the presence of normal LV diastolic function, LV global longitudinal strain, and LV wall thickness.
Publisher: Wiley
Date: 04-12-2019
Publisher: Wiley
Date: 16-04-2020
Publisher: Elsevier BV
Date: 10-2020
Publisher: Springer Science and Business Media LLC
Date: 22-05-2018
Publisher: American Chemical Society (ACS)
Date: 27-04-2020
Publisher: American Chemical Society (ACS)
Date: 05-09-2019
Publisher: Elsevier BV
Date: 09-2017
Publisher: Elsevier BV
Date: 02-2018
DOI: 10.1016/J.JCHF.2017.11.016
Abstract: This study sought to measure the impact on all-cause death or readmission of adding center-based exercise training (ET) to disease management programs for patients with a recent acute heart failure (HF) hospitalization. ET is recommended for patients with HF, but evidence is based mainly on ET as a single intervention in stable outpatients. A randomized, controlled trial with blinded outcome assessor, enrolling adult participants with HF discharged from 5 hospitals in Queensland, Australia. All participants received HF-disease management program plus supported home exercise program intervention participants were offered 24 weeks of supervised center-based ET. Primary outcome was all-cause 12-month death or readmission. Pre-planned subgroups included age ( 40%), and exercise adherence. Between May 2008 and July 2013, 278 participants (140 intervention, 138 control) were enrolled: 98 (35.3%) age ≥70 years, 71 (25.5%) females, and 62 (23.3%) with a left ventricular ejection fraction of >40%. There were no adverse events associated with ET. There was no difference in primary outcome between groups (84 of 140 [60.0%] intervention vs. 90 of 138 [65.2%] control p = 0.37), but a trend toward greater benefit in participants age <70 years (OR: 0.56 [95% CI: 0.30 to 1.02] vs. OR: 1.56 [95% CI: 0.67 to 3.64] p for interaction = 0.05). Participants who exercised to guidelines (72 of 101 control and 92 of 117 intervention at 3 months) had a significantly lower rate of death and readmission (91 of 164 [55.5%] vs. 41 of 54 [75.9%] p = 0.008). Supervised center-based ET was a safe, feasible addition to disease management programs with supported home exercise in patients recently hospitalized with acute HF, but did not reduce combined end-point of death or readmission. (A supervised exercise programme following hospitalisation for heart failure: does it add to disease management? ACTRN12608000263392).
Publisher: Wiley
Date: 20-03-2022
Abstract: Oxygen evolution reaction (OER) is a key half‐reaction in many electrochemical transformations, and efficient electrocatalysts are critical to improve its kinetics which is typically sluggish due to its multielectron‐transfer nature. Perovskite oxides are a popular category of OER catalysts, while their activity remains insufficient under the conventional adsorbate evolution reaction scheme where scaling relations limit activity enhancement. The lattice oxygen‐mediated mechanism (LOM) has been recently reported to overcome such scaling relations and boost the OER catalysis over several doped perovskite catalysts. However, direct evidence supporting the LOM participation is still very little because the doping strategy applied would introduce additional active sites that may mask the real reaction mechanism. Herein, a dopant‐free, cation deficiency manipulation strategy to tailor the bulk diffusion properties of perovskites without affecting their surface properties is reported, providing a perfect platform for studying the contribution of LOM to OER catalysis. Further optimizing the A‐site deficiency achieves a perovskite candidate with excellent intrinsic OER activity, which also demonstrates outstanding performance in rechargeable Zn–air batteries and water electrolyzers. These findings not only corroborate the key role of LOM in OER electrocatalysis, but also provide an effective way for the rational design of better catalyst materials for clean energy technologies.
Publisher: Elsevier BV
Date: 03-2020
Publisher: Elsevier BV
Date: 05-2011
Publisher: Springer Science and Business Media LLC
Date: 27-11-2017
DOI: 10.1557/JMR.2017.416
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3DT53191K
Abstract: A series of ZIF-8 and hydroxyl-functionalized carbon nanotube (CNT) composites were successfully synthesized by the solvothermal method. The obtained ZIF-8/CNT composites were characterized by XRD, SEM, TGA and N2 adsorption at 77 K. The contents of ZIF-8 and CNTs in the composites were calculated from thermal analysis data. CO2 and N2 adsorption at 273 K on the composites was also investigated and compared. The ZIF-8 particles in the composites exhibit similar crystal structures and morphology to those of pure ZIF-8, but display enhanced thermal stability. The surface areas and pore volumes of the ZIF-8/CNT composites are higher than the values calculated for hypothetical physical mixtures, and the synergetic effect between ZIF-8 and CNTs can be proposed. This phenomenon demonstrates that the incorporation of CNTs into ZIF-8 can facilitate the nucleation and crystallization of ZIF-8. As a result, the composites with an optimal CNT content (3.63 wt%) show improved CO2 adsorption capacity and higher relative selectivity for CO2/N2 compared with pure ZIF-8.
Publisher: Wiley
Date: 06-11-2020
Abstract: Achieving high product selectivities is one challenge that limits viability of electrochemical CO
Publisher: Elsevier BV
Date: 02-2015
DOI: 10.1016/J.IJCARD.2014.12.052
Abstract: We have previously demonstrated that circulating NT-proBNP is truncated at the N and C termini. Aims of this study are three-fold: firstly to determine whether the NT-proBNP levels correlate with NYHA functional classes when measuring with different antibody pairs secondly to evaluate the diagnostic potential of ProBNP and thirdly to investigate whether combining NT-proBNP assays with or without ProBNP would lead to better diagnostic accuracies. Plasma s les were collected from healthy controls (n=52) and HF patients (n=46). Customized AlphaLISA® immunoassays were developed and validated to measure the concentrations of proBNP and NT-proBNP (with antibodies targeting 13-45, 13-76, 28-76). The diagnostic performance and predictive value of proBNP and NT-proBNP assays and their combinations were evaluated. Plasma proBNP assay showed acceptable diagnostic performance. NT-proBNP13-76 assay is useful in diagnosing and stratifying HF patients. The diagnostic performance of NT-proBNP13-76 demonstrated improvement over commercial NT-proBNP tests. The combination of NT-proBNP13-76 with NT-proBNP28-76 assays gave the best diagnostic assay performance. Our results demonstrate that while there is major heterogeneity in circulating NT-proBNP, specific epitopes of the peptides are extraordinarily stable, providing ideal targets for clinically useful diagnostic assays. Future new clinical diagnostic clinical trials should include a multimarker approach rather than using a single marker to diagnose HF.
Publisher: American Chemical Society (ACS)
Date: 19-08-2011
DOI: 10.1021/CM201439D
Publisher: Wiley
Date: 06-2020
DOI: 10.1111/IMJ.14624
Abstract: Hyponatraemia is common in heart failure (HF). It is estimated that over 20% of patients admitted to hospital with HF have hyponatraemia. It has also been repeatedly shown to be a surrogate marker of increased morbidity and mortality in this specific population. This review focuses on the pathophysiology of hyponatraemia through the activation of neurohormonal cascades in HF, the clinical implications of sustained hyponatraemia and treatment options in the management of this challenging phenomenon.
Publisher: Elsevier BV
Date: 09-2009
Publisher: Public Library of Science (PLoS)
Date: 13-04-2016
Publisher: Elsevier BV
Date: 07-2017
Publisher: Elsevier BV
Date: 06-2018
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2RA00031H
Publisher: AMPCo
Date: 02-08-2018
DOI: 10.5694/MJA18.00647
Abstract: Heart failure (HF) is a clinical syndrome that is secondary to an abnormality of cardiac structure or function. These clinical practice guidelines focus on the diagnosis and management of HF with recommendations that have been graded on the strength of evidence and the likely absolute benefit versus harm. Additional considerations are presented as practice points. Main recommendations: Blood pressure and lipid lowering decrease the risk of developing HF. Sodium-glucose cotransporter 2 inhibitors decrease the risk of HF hospitalisation in patients with type 2 diabetes and cardiovascular disease. An echocardiogram is recommended if HF is suspected or newly diagnosed. If an echocardiogram cannot be arranged in a timely fashion, measurement of plasma B-type natriuretic peptides improves diagnostic accuracy. Angiotensin-converting enzyme inhibitors, β-blockers and mineralocorticoid receptor antagonists improve outcomes in patients with HF associated with a reduced left ventricular ejection fraction. Additional treatment options in selected patients with persistent HF associated with reduced left ventricular ejection fraction include switching the angiotensin-converting enzyme inhibitor to an angiotensin receptor neprilysin inhibitor ivabradine implantable cardioverter defibrillators cardiac resynchronisation therapy and atrial fibrillation ablation. Multidisciplinary HF disease management facilitates the implementation of evidence-based HF therapies. Clinicians should also consider models of care that optimise medication titration (eg, nurse-led titration). Changes in management as a result of the guideline: These guidelines have been designed to facilitate the systematic integration of recommendations into HF care. This should include ongoing audit and feedback systems integrated into work practices in order to improve the quality of care and outcomes of patients with HF.
Publisher: Wiley
Date: 02-02-2012
DOI: 10.1002/APP.36671
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA11131H
Publisher: Elsevier BV
Date: 05-2020
DOI: 10.1016/J.HLC.2019.04.008
Abstract: Three-dimensional echocardiography (3D-Echo) performed by novice health care staff to measure left ventricular ejection fraction (LVEF) could allow cost-effective screening and monitoring for left ventricular systolic dysfunction (LVSD) prior to the development of heart failure. The aim of this study was to determine feasibility and accuracy of cardiac nurses (after completing focussed training) independently acquiring 3D-Echo images, and measuring LVEF using semi-automated software when compared to an echosonographer. One echosonographer and three cardiac nurses acquired 3D-Echo images on 73 patients (62 ± 16 years, 62% male) with good image quality, and subsequently measured LVEF using a semi-automated algorithm. Overall feasibility was 89% with the three nurses successfully acquiring 3D-Echo images suitable for LVEF assessment in 65 of the 73 patients. High accuracy (r = 0.82 p < 0.0001) with minimal bias (+0.1, -10.6 to +10.8 limits of agreement p = 0.91) was observed comparing the nurses to the echosonographer for measuring LVEF. In idual nurses demonstrated high feasibility (86%-92%), accuracy (r = 0.83-0.87 all p < 0.0001) and intra-observer reproducibility (r = 0.96-0.97 all p < 0.0001), with good inter-observer consistency in accuracy compared to the echosonographer (one-way analysis of variance p = 0.559). We have demonstrated that, following a focussed training protocol, it was feasible for cardiac nurses to acquire 3D-Echo images of sufficient image quality to allow measurement of LVEF using a semi-automated algorithm, with comparable accuracy and intra-observer variability to an expert echosonographer. This could potentially allow the broader application of echocardiography to screen for LVSD in high-risk cohorts.
Publisher: JMIR Publications Inc.
Date: 31-03-2022
DOI: 10.2196/33839
Abstract: Heart failure self-management is essential to avoid decompensation and readmissions. Mobile apps seem promising in supporting heart failure self-management, and there has been a rapid growth in publications in this area. However, to date, systematic reviews have mostly focused on remote monitoring interventions using nonapp types of mobile technologies to transmit data to health care providers, rarely focusing on supporting patient self-management of heart failure. This study aims to systematically review the evidence on the effect of heart failure self-management apps on health outcomes, patient-reported outcomes, and patient experience. Four databases (PubMed, Embase, CINAHL, and PsycINFO) were searched for studies examining interventions that comprised a mobile app targeting heart failure self-management and reported any health-related outcomes or patient-reported outcomes or perspectives published from 2008 to December 2021. The studies were independently screened. The risk of bias was appraised using Cochrane tools. We performed a narrative synthesis of the results. The protocol was registered on PROSPERO (International Prospective Register of Systematic Reviews CRD42020158041). A total of 28 articles (randomized controlled trials [RCTs]: n=10, 36%), assessing 23 apps, and a total of 1397 participants were included. The most common app features were weight monitoring (19/23, 83%), symptom monitoring (18/23, 78%), and vital sign monitoring (15/23, 65%). Only 26% (6/23) of the apps provided all guideline-defined core components of heart failure self-management programs: education, symptom monitoring, medication support, and physical activity support. RCTs were small, involving altogether 717 participants, had ≤6 months of follow-up, and outcomes were predominantly self-reported. Approximately 20% (2/10) of RCTs reported a significant improvement in their primary outcomes: heart failure knowledge (P=.002) and self-care (P=.004). One of the RCTs found a significant reduction in readmissions (P=.02), and 20% (2/10) of RCTs reported higher unplanned clinic visits. Other experimental studies also found significant improvements in knowledge, self-care, and readmissions, among others. Less than half of the studies involved patients and clinicians in the design of apps. Engagement with the intervention was poorly reported, with only 11% (3/28) of studies quantifying app engagement metrics such as frequency of use over the study duration. The most desirable app features were automated self-monitoring and feedback, personalization, communication with clinicians, and data sharing and integration. Mobile apps may improve heart failure self-management however, more robust evaluation studies are needed to analyze key end points for heart failure. On the basis of the results of this review, we provide a road map for future studies in this area.
Publisher: Elsevier BV
Date: 03-2017
Publisher: American Chemical Society (ACS)
Date: 09-11-2016
Abstract: Obtaining strong interfacial affinity between filler and polymer is critical to the preparation of mixed matrix membranes (MMMs) with high separation efficiency. However, it is still a challenge for micron-sized metal organic frameworks (MOFs) to achieve excellent compatibility and defect-free interface with polymer matrix. Thin layer of ionic liquid (IL) was immobilized on micron-sized HKUST-1 to eliminate the interfacial nonselective voids in MMMs with minimized free ionic liquid (IL) in polymer matrix, and then the obtained IL decorated HKUST-1 was incorporated into 4,4'-(hexafluoroisopropylidene)diphthalic anhydride-2,3,5,6-tetramethyl-1,3-phenyldiamine (6FDA-Durene) to fabricate MMMs. Acting as a filler olymer interfacial binder, the favorable MOF/IL and IL olymer interaction can facilitate the enhancement of MOF olymer affinity. Compared to MMM with only HKUST-1 incorporation, MMM with IL decorated HKUST-1 succeeded in restricting the formation of nonselective interfacial voids, leading to an increment in CO
Publisher: Elsevier BV
Date: 11-2017
Publisher: Elsevier BV
Date: 02-2015
Publisher: BMJ
Date: 23-06-2016
Publisher: Elsevier BV
Date: 06-2020
Publisher: Elsevier BV
Date: 06-2022
Publisher: Oxford University Press (OUP)
Date: 14-06-2017
Abstract: Physical activity is associated with improved quality of life. Patients with an implantable cardioverter defibrillator (ICD) face unique clinical and psychological challenges. Factors such as fear of ICD shock may negatively impact on physical activity, while a sense of protection gained from the ICD may instil confidence to be active. We aimed to examine the impact of an ICD on physical activity levels and factors associated with amount of activity. Two cross-sectional studies were conducted. Accelerometer data (seven-day) was collected in March–November 2015 for 63 consecutively recruited hypertrophic cardiomyopathy patients, with or without an ICD, aged ⩾18 years. A survey study was conducted in July–August 2016 of 155 in iduals aged ⩾18 years with an inherited heart disease and an ICD in situ. Based on the International Physical Activity Questionnaire, mean leisure time physical activity was 239 ± 300 min/week with 51% meeting physical activity guidelines. Accelerometry showed that mean moderate–vigorous physical activity was the same for patients with and without an ICD (254 ± 139 min/week versus 300 ± 150 min/week, p=0.23). Nearly half of survey participants ( n=73) said their device made them more confident to exercise. Being anxious about ICD shocks was the only factor associated with not meeting physical activity guidelines. Patients with inherited heart disease adjust differently to their ICD device, and for many it has no impact on physical activity. Discussion regarding the appropriate level of physical activity and potential barriers will ensure best possible outcomes in this unique patient group.
Publisher: Massachusetts Medical Society
Date: 27-08-2020
DOI: 10.1056/NEJMC1913719
Publisher: Elsevier BV
Date: 09-2019
Publisher: Elsevier BV
Date: 08-2023
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2RA21460A
Publisher: BMJ
Date: 29-11-2012
DOI: 10.1136/HEARTJNL-2011-300368
Abstract: Traditional management of families with hypertrophic cardiomyopathy (HCM) involves periodic lifetime clinical screening of family members, an approach that does not identify all gene carriers owing to incomplete penetrance and significant clinical heterogeneity. Limitations in availability and cost have meant genetic testing is not part of routine clinical management for many HCM families. To determine the cost-effectiveness of the addition of genetic testing to HCM family management, compared with clinical screening alone. A probabilistic Markov decision model was used to determine cost per quality-adjusted life-year and cost for each life-year gained when genetic testing is included in the management of Australian families with HCM, compared with the conventional approach of periodic clinical screening alone. The incremental cost-effectiveness ratio (ICER) was $A785 (£510 or €587) per quality-adjusted life-year gained, and $A12 720 (£8261 or €9509) per additional life-year gained making genetic testing a very cost-effective strategy. Sensitivity analyses showed that the cost of proband genetic testing was an important variable. As the cost of proband genetic testing decreased, the ICER decreased and was cost saving when the cost fell below $A248 (£161 or €185). In addition, the mutation identification rate was also important in reducing the overall ICER, although even at the upper limits, the ICER still fell well within accepted willingness to pay bounds. The addition of genetic testing to the management of HCM families is cost-effective in comparison with the conventional approach of regular clinical screening. This has important implications for the evaluation of families with HCM, and suggests that all should have access to specialised cardiac genetic clinics that can offer genetic testing.
Publisher: Elsevier BV
Date: 02-2019
Publisher: BMJ
Date: 2018
DOI: 10.1136/BMJOPEN-2017-019463
Abstract: Identifying simple, low-cost and scalable means of supporting lifestyle change and medication adherence for patients following a cardiovascular (CV) event is important. The TEXTMEDS (TEXT messages to improve MEDication adherence and Secondary prevention) study aims to investigate whether a cardiac education and support programme sent via mobile phone text message improves medication adherence and risk factor levels in patients following an acute coronary syndrome (ACS). A single-blind, multicentre, randomised clinical trial of 1400 patients after an ACS with 12 months follow-up. The intervention group will receive multiple weekly text messages that provide information, motivation, support to adhere to medications, quit smoking (if relevant) and recommendations for healthy diet and exercise. The primary endpoint is the percentage of patients who are adherent to cardioprotective medications and the key secondary outcomes are mean systolic blood pressure (BP) and low-density lipoprotein cholesterol. Secondary outcomes will also include total cholesterol, mean diastolic BP, the percentage of participants who are adherent to each cardioprotective medication class, the percentage of participants who achieve target levels of CV risk factors, major vascular events, hospital readmissions and all-cause mortality. The study will be augmented by formal economic and process evaluations to assess acceptability, utility and cost-effectiveness. The study will provide multicentre randomised trial evidence of the effects of a text message-based programme on cardioprotective medication adherence and levels of CV risk factors. Primary ethics approval was received from Western Sydney Local Health District Human Research Ethics Committee (HREC2012/12/4.1 (3648) AU RED HREC/13/WMEAD/15). Results will be disseminated via peer-reviewed publications and presentations at international conferences. ACTRN12613000793718 Pre-results.
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2NJ03815C
Abstract: Two novel Ni/Co-MOFs electrocatalysts were synthesized. Ni-MOF demonstrated a good activity in electrocatalytic OER performances and short-term electrochemical durability.
Publisher: Elsevier BV
Date: 08-2020
Publisher: AMPCo
Date: 22-03-2020
DOI: 10.5694/MJA2.50551
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/C0JM02816A
Publisher: AMPCo
Date: 29-09-2020
DOI: 10.5694/MJA2.50797
Publisher: OMICS Publishing Group
Date: 2016
Publisher: Elsevier BV
Date: 04-2020
DOI: 10.1016/J.HLC.2019.11.019
Abstract: Amyloid cardiomyopathy is emerging as an important and under-recognised cause of heart failure and cardiac arrhythmias, especially in older adults. This disorder is characterised by extracellular deposition of amyloid fibrils that form due to misfolding of secreted light chains (AL) or transthyretin protein (ATTR). In ATTR, amyloid aggregates typically result from excessive accumulation of wild-type transthyretin (ATTRwt) or from protein structural defects caused by TTR gene variants (ATTRv). Amyloid fibril deposition may predominantly affect the heart or show multi-system involvement. Previously considered to be rare and inexorably progressive with no specific therapy, there has been enormous recent interest in ATTR cardiomyopathy due to upwardly-revised estimates of disease prevalence together with development of disease-modifying interventions. Because of this, there is a clinical imperative to have a high index of suspicion to identify potential cases and to be aware of contemporary diagnostic methods and treatment options. Genetic testing should be offered to all patients with proven ATTR to access the benefits of new therapies specific to ATTRv and allow predictive testing of family members. With heightened awareness of amyloid cardiomyopathy and expanded use of genetic testing, a substantial rise in the numbers of asymptomatic in iduals who are carriers of pathogenic variants is expected, and optimal strategies for monitoring and treatment of these in iduals at risk need to be determined. Pre-emptive administration of fibril-modifying therapies provides an unprecedented opportunity for disease prevention and promises to change amyloid cardiomyopathy from being a fatal to a treatable disorder.
Publisher: Oxford University Press (OUP)
Date: 09-02-2018
Abstract: There is little information on clinical risk stratification (CRS) compared to objective risk tools in patients with non-ST elevation acute coronary syndromes (NSTEACS). We quantified CRS use, its agreement with Global Registry of Acute Coronary Events (GRACE) risk scores (GRS), and association with outcomes. Data were extracted from the Australian Cooperative National Registry of Acute Coronary Care, Guideline Adherence and Clinical Events (CONCORDANCE), a multi-centre NSTEACS registry. From February 2009 to December 2015, 4512 patients from 41 sites were included. Predictors of CRS use and association with treatment were identified, CRS-GRS agreement determined and prediction of in-hospital and 6-month mortality compared. Clinical risk stratification was documented in 21% of patients. Family history of coronary disease was the only independent predictor of CRS use [odds ratio (OR) 1.23, 95% confidence interval (95% CI) 1.04-1.45] electrocardiogram changes (OR 0.8, 95% CI 0.68-0.96), elevated biomarkers (OR 0.59, 95% CI 0.48-0.73), dementia (OR 0.56, 95% CI 0.36-0.84), and an urban hospital setting (OR 0.41, 95% CI 0.19-0.89) were independent negative predictors. A treatment-risk paradox was observed: high CRS risk patients received less anticoagulation (79% vs. 88%, P = 0.001) and angiography (83% vs. 71%, P < 0.001). CRS-GRS agreement was poor (kappa coefficient = 0.034) and CRS less predictive for in-hospital (c-statistic 0.54 vs. 0.87, P < 0.001) and 6-month (c-statistic 0.55 vs. 0.74, P < 0.01) mortality. In Australia, CRS does not guide treatment, correlate with GRS or predict outcomes. This study suggests the need for greater awareness and integration of validated tools such as the GRACE score to optimally direct treatment and potentially improve outcomes.
Publisher: Elsevier BV
Date: 2019
Publisher: Springer Science and Business Media LLC
Date: 10-07-2019
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7TA07294E
Abstract: This review focuses on state-of-the-art solutions and strategies for MOF olymer interface issues in mixed matrix membranes.
Publisher: Elsevier BV
Date: 03-2021
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 04-2017
DOI: 10.1161/CIRCGENETICS.116.001620
Abstract: Yield of causative variants in hypertrophic cardiomyopathy (HCM) is increased in some probands, suggesting different clinical subgroups of disease occur. We hypothesized that a negative family history and no sarcomere mutations represent a nonfamilial subgroup of HCM. We sought to determine the prevalence, natural history, and potential clinical implications of this nonfamilial subgroup of HCM. Four hundred and thirteen unrelated probands with HCM seen in a specialized HCM center between 2002 and 2015 and genetic testing performed were included in this retrospective cohort study. There were 251 (61%) probands with no reported family history of HCM, including 166 (40% of total) probands with no sarcomere mutation, that is, nonfamilial HCM. Quantified family pedigree data revealed no difference in mean number of first-degree relatives screened between nonfamilial and sarcomere-positive groups. Adjusted predictors of nonfamilial status were older age (odds ratio, 1.04 95% confidence interval, 1.02–1.06 P =0.0001), male sex (odds ratio, 1.96 95% confidence interval, 1.11–3.45 P =0.02), hypertension (odds ratio, 2.80 95% confidence interval, 1.57–5.00 P =0.0005), and nonasymmetric septal morphology (odds ratio, 3.41 95% confidence interval, 1.64–7.08 P =0.001). They had a less severe clinical course with greater event-free survival from major cardiac events ( P =0.04) compared with sarcomere-positive HCM probands. Genotype prediction scores showed good performance in identifying genotype-positive patients (area under the curve, 0.71–0.75) and, in combination with pedigree characteristics, were further improved. Approximately 40% of HCM probands have a nonfamilial subtype, with later onset and less severe clinical course. We propose a revised clinical pathway for management, highlighting the role of genetic testing, a detailed pedigree, and refined clinical surveillance recommendations for family members.
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6NR06961D
Abstract: Developing low cost, highly active and stable electrocatalysts for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) using the same electrolyte has remained a major challenge. Herein, we report a novel and robust material comprised of nickel-cobalt nanoparticles coated on a porous nitrogen-doped carbon (NC) thin film synthesized via a two-step pulsed laser deposition technique. The optimized s le (Ni
Publisher: Elsevier BV
Date: 02-2017
Publisher: Elsevier BV
Date: 10-2018
DOI: 10.1016/J.ECHO.2018.05.016
Abstract: Recent American Society of Echocardiography and European Association of Cardiovascular Imaging guidelines for the assessment of diastolic dysfunction (DD) recommend a simplified approach with four key variables incorporated into a novel diagnostic algorithm. The aim of this study was to assess the prognostic value of significant DD assessed using the algorithm recommended in the 2016 American Society of Echocardiography and European Association of Cardiovascular Imaging guidelines (DD2016) in comparison with the prognostic value of significant DD assessed using the 2009 guidelines (DD2009) as well as the in idual parameters incorporated in the 2016 algorithm. Retrospective data on 419 consecutive patients with first ever myocardial infarction were included. Doppler echocardiography was performed within 24 hours of admission in all patients. Significant DD was defined as grade 2 or 3 DD. The primary outcome measure was composite major adverse cardiovascular events (MACEs), comprising death, myocardial infarction, and heart failure. At a median follow-up of 24 months, there were 61 MACEs. On Kaplan-Meier analysis, DD2016 showed a better association with MACEs than DD2009 (log-rank χ Significant DD assessed using the 2016 American Society of Echocardiography and European Association of Cardiovascular Imaging guidelines is a robust independent predictor of clinical outcomes following myocardial infarction and compares favorably with DD2009 as well as the in idual parameters incorporated in the novel 2016 algorithm.
Publisher: American Chemical Society (ACS)
Date: 21-07-2011
DOI: 10.1021/EF200719V
Publisher: Elsevier BV
Date: 2020
Publisher: Elsevier BV
Date: 11-2021
Publisher: Oxford University Press (OUP)
Date: 26-02-2014
DOI: 10.1007/S12160-014-9592-0
Abstract: Depression is common after a cardiac event, yet there remain few approaches to management that are both effective and scalable. We aimed to evaluate the 6-month efficacy and feasibility of a tele-health program (MoodCare) that integrates depression management into a cardiovascular disease risk reduction program for acute coronary syndrome patients with low mood. A two-arm, parallel, randomized design was used comprising 121 patients admitted to one of six hospitals for acute coronary syndrome. Significant treatment effects were observed for Patient Health Questionnaire 9 (PHQ9) depression (mean difference [change] = -1.8 p = 0.025 effect size: d = 0.36) for the overall s le, when compared with usual medical care. Results were more pronounced effects for those with a history of depression (mean difference [change] = -2.7 p = 0.043 effect size: d = 0.65). MoodCare was effective for improving depression in acute coronary syndrome patients, producing effect sizes exceeding those of some face-to-face psychotherapeutic interventions and pharmacotherapy. ( ACTRN1260900038623.).
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3RA41208C
Publisher: Hindawi Limited
Date: 2012
DOI: 10.6064/2012/279731
Abstract: Heart failure represents an end-stage phenotype of a number of cardiovascular diseases and is generally associated with a poor prognosis. A number of organized battles fought over the last two to three decades have resulted in considerable advances in treatment including the use of drugs that interfere with neurohormonal activation and device-based therapies such as implantable cardioverter defibrillators and cardiac resynchronization therapy. Despite this, the prevalence of heart failure continues to rise related to both the aging population and better survival in patients with cardiovascular disease. Registries have identified treatment gaps and variation in the application of evidenced-based practice, including the use of echocardiography and prescribing of disease-modifying drugs. Quality initiatives often coupled with multidisciplinary, heart failure disease management promote self-care and minimize variation in the application of evidenced-based practice leading to better long-term clinical outcomes. However, to address the rising prevalence of heart failure and win the war, we must also turn our attention to disease prevention. A combined approach is required that includes public health measures applied at a population level and screening strategies to identify in iduals at high risk of developing heart failure in the future.
Publisher: Elsevier BV
Date: 2020
Publisher: American Chemical Society (ACS)
Date: 04-11-2019
Abstract: Metal-organic frameworks (MOFs) have recently emerged as promising electrocatalysts because of their atomically dispersed metal sites and porous structures. The active sites of MOF catalysts largely exist as coordinatively unsaturated metal sites (CUMSs). In this study, facile microwave-induced plasma engraving is applied to fine-tune the CUMSs of cobalt-based MOF (Co-MOF-74) without destroying its phase integrity by controlling the plasma-engraving species, intensity, and duration. The electrochemical activity of the engraved MOF is found to be quantitatively correlated to the coordination geometry of the metal centers corresponding to CUMSs. Specifically, the hydrogen plasma-engraved Co-MOF-74 shows an enhanced catalytic activity of oxygen evolution reaction, which exhibits a low overpotential (337 mV at 15 mA cm
Publisher: American Chemical Society (ACS)
Date: 10-08-2023
Publisher: BMJ
Date: 20-07-2018
DOI: 10.1136/HEARTJNL-2017-312323
Abstract: Heart failure with preserved ejection fraction (HFpEF) looms as a major public heart challenge with increasing prevalence due to an ageing population. Diagnosis can be challenging due to non-specific symptomatology, low natriuretic peptide levels and equivocal diastology on resting echocardiography. Diastolic stress echocardiography represents a non-invasive option to refining the diagnosis in this subset of patients. Diastolic responses to exercise are most commonly measured with a non-invasive measure of left ventricular filling pressures (LVFP) estimated by the ratio of the early mitral inflow wave to early diastolic tissue velocity (E/e′ ratio). This is measured pre- and post-exercise , and is highly feasible. An elevation of exercise E/e′ is classified as an abnormal response as per current guidelines. An alternative measure of exercise-related diastolic performance, the Diastolic Functional Reserve Index has also been proposed, but has not been as well studied as exercise E/e′. A number of studies have validated exercise E/e′ as a measure of LVFP against invasively measured LVFP using simultaneous echocardiography–catheterisation studies. The independent prognostic value of exercise E/e′ has also been well delineated in a number of studies. While diastolic stress echocardiography can be considered for all patients with suspected HFpEF, it is of particular value in patients with normal or equivocal diastolic indices on resting echocardiography.
Publisher: Wiley
Date: 08-08-2019
Abstract: Metal-organic framework (MOFs) two-dimensional (2D) nanosheets have many coordinatively unsaturated metal sites that act as active centres for catalysis. To date, limited numbers of 2D MOFs nanosheets can be obtained through top-down or bottom-up synthesis strategies. Herein, we report a 2D oxide sacrifice approach (2dOSA) to facilely synthesize ultrathin MOF-74 and BTC MOF nanosheets with a flexible combination of metal sites, which cannot be obtained through the delamination of their bulk counterparts (top-down) or the conventional solvothermal method (bottom-up). The ultrathin iron-cobalt MOF-74 nanosheets prepared are only 2.6 nm thick. The s le enriched with surface coordinatively unsaturated metal sites, exhibits a significantly higher oxygen evolution reaction reactivity than bulk FeCo MOF-74 particles and the state-of-the-art MOF catalyst. It is believed that this 2dOSA could provide a new and simple way to synthesize various ultrathin MOF nanosheets for wide applications.
Publisher: Elsevier BV
Date: 12-2015
Publisher: Elsevier BV
Date: 02-2012
Publisher: Elsevier BV
Date: 10-2013
Publisher: Elsevier BV
Date: 03-2022
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3CC43401J
Abstract: Nitrogen (5.61 at%) doped reduced graphene oxide synthesized via a facile method was demonstrated as a superior metal-free catalyst for activation of peroxymonosulfate. Codoping with boron would further enhance the catalytic activity and the stability, providing a promising green material for environmental remediation.
Publisher: American Chemical Society (ACS)
Date: 23-03-2011
DOI: 10.1021/JP1120965
Publisher: Elsevier BV
Date: 08-2019
DOI: 10.1016/J.AMJCARD.2019.05.007
Abstract: The inter-relationships between minimal and maximal left atrial volume index (LAVI), left ventricular filling pressures and survival have not been well studied. This study aimed to compare LAVImin with LAVImax with respect to (1) relative prognostic value, and (2) correlation with left ventricular end-diastolic pressures (LVEDP), in patients with myocardial infarction (MI). A retrospective study involving consecutive patients with a first-ever MI (n = 419) was undertaken. LAVIs were determined using Simpson's biplane method from 2D echocardiography performed the day after admission. LAVmin ≥ 18 mls/m
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1CC03547A
Abstract: The sizes of rod-shaped bulk MOFs could be decreased to the nanoscale via using metal oxides as precursors, and then the as-obtained nanosized MOFs could be self-assembled to form urchin-shaped superstructure MOFs via changing the dosage of ligands.
Publisher: Elsevier BV
Date: 08-2018
Publisher: Future Science Ltd
Date: 09-2013
DOI: 10.4155/BIO.13.190
Abstract: Background: Plasma D-dimer tests are currently used to exclude deep vein thrombosis and pulmonary embolism. Human saliva has numerous advantages over blood as a diagnostic s le. The aims of our study were to develop a reliable immunoassay to detect D-dimer levels in saliva, and to determine the correlation between salivary and blood D-dimer levels. Results/methodology: Saliva and blood s les were collected from 40 healthy volunteers. We developed a AlphaLISA ® immunoassay with acceptable analytical performances to quantify D-dimer levels in the s les. The median salivary D-dimer levels were 138.1 ng/ml (morning) and 140.7 ng/ml (afternoon), and the plasma levels were 75.0 ng/ml. Salivary D-dimer levels did not correlate with plasma levels (p = 0.61). Conclusion: For the first time, we have quantified D-dimer levels and found twofold increase in saliva (p 0.05) than in plasma. Further studies are required to demonstrate the clinical relevance/utility of salivary D-dimer in patients with confirmed deep vein thrombosis and/or pulmonary embolism.
Publisher: Springer Science and Business Media LLC
Date: 22-08-2019
Publisher: Elsevier BV
Date: 08-2020
Publisher: Wiley
Date: 15-09-2017
Publisher: Elsevier BV
Date: 06-2008
Publisher: Elsevier BV
Date: 05-2015
Publisher: Elsevier BV
Date: 06-2016
DOI: 10.1016/J.YPMED.2016.02.028
Abstract: Depression is widely considered to be an independent and robust predictor of Coronary Heart Disease (CHD), however is seldom considered in the context of formal risk assessment. We assessed whether the addition of depression to the Framingham Risk Equation (FRE) improved accuracy for predicting 10-year CHD in a s le of women. A prospective, longitudinal design comprising an age-stratified, population-based s le of Australian women collected between 1993 and 2011 (n=862). Clinical depressive disorder was assessed using the Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders (SCID-I/NP), using retrospective age-of-onset data. A composite measure of CHD included non-fatal myocardial infarction, unstable angina coronary intervention or cardiac death. Cox proportional-hazards regression models were conducted and overall accuracy assessed using area under receiver operating characteristic (ROC) curve analysis. ROC curve analyses revealed that the addition of baseline depression status to the FRE model improved its overall accuracy (AUC:0.77, Specificity:0.70, Sensitivity:0.75) when compared to the original FRE model (AUC:0.75, Specificity:0.73, Sensitivity:0.67). However, when calibrated against the original model, the predicted number of events generated by the augmented version marginally over-estimated the true number observed. The addition of a depression variable to the FRE equation improves the overall accuracy of the model for predicting 10-year CHD events in women, however may over-estimate the number of events that actually occur. This model now requires validation in larger s les as it could form a new CHD risk equation for women.
Publisher: Elsevier BV
Date: 02-2020
DOI: 10.1016/J.CARDFAIL.2019.10.014
Abstract: Nutraceuticals are pharmacologically active substances extracted from vegetable or animal food and administered to produce health benefits. We recently reviewed the current evidence for nutraceuticals in patients diagnosed with heart failure as part of the writing of the Australian Guidelines for the prevention, diagnosis, and management of heart failure. A systematic search for studies that compared nutraceuticals to standard care in adult patients with heart failure was performed. Studies were included if >50 patients were enrolled, with ≥6 months follow-up. If no studies met criteria then studies <50 patients and <6 months follow-up were included. The primary outcomes included mortality/survival, hospitalization, quality of life, and/or exercise tolerance. Iron was not included in this review as its role in heart failure is already well established. Forty studies met the inclusion criteria. The strongest evidence came from studies of polyunsaturated fatty acids, which modestly decreased mortality and cardiovascular hospitalizations in patients with mostly New York Heart Association class II and III heart failure across a range of left ventricular ejection fraction. Coenzyme Q10 may decrease mortality and hospitalization, but definite conclusions cannot be drawn. Studies that examined nitrate-rich beetroot juice, micronutrient supplementation, hawthorn extract, magnesium, thiamine, vitamin E, vitamin D, L-arginine, L-carnosine, and L-carnitine were too small or underpowered to properly appraise clinical outcomes. Only one nutraceutical, omega-3 polyunsaturated fatty acid, received a positive recommendation in the Australian heart failure guidelines. Although occasionally showing some promise, all other nutraceuticals are inadequately studied to allow any conclusion on efficacy. Clinicians should favor other treatments that have been clearly shown to decrease mortality.
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5TA10553F
Abstract: High propylene ropane separation membranes containing grape-branched MOFs/CNTs as filler with improved MOF dispersion and filler olymer interface.
Publisher: American Chemical Society (ACS)
Date: 04-04-2014
DOI: 10.1021/AM500081E
Abstract: MOFs-based mixed matrix membranes (MMMs) have attracted extensive attention in recent years due to their potential high separation performance, the low cost, and good mechanical properties. However, it is still very challenging to achieve defect-free interface between micrometer-sized MOFs and a polymer matrix. In this study, [Cd2L(H2O)]2·5H2O (Cd-6F) synthesized using 4,4'-(hexafluoroisopropylidene)diphthalic anhydride (6FDA) as an organic ligand was introduced into the 6FDA-ODA polyimide matrix to achieve novel MOF MMMs. A specific interfacial interaction between MOF crystals and polymer chains was innovatively targeted and achieved through in situ polymerization procedure. The enhanced adhesion between MOF particles and polymer phase was observed, and the improved interfacial interaction between Cd-6F and the 6FDA-ODA polyimide matrix was confirmed by detailed characterizations including FTIR and NMR. In the meantime, the gas permeance and selectivity of the MMMs are strongly dependent on their morphology. The MMM derived from in situ polymerization presents excellent interfaces between micrometer-sized MOF crystals and the polymer matrix, resulting in increased permeability and selectivity. The strategy shown here can be further utilized to select the MOF olymer pair, eliminate interfacial voids, and improve membrane separation performance of MOFs-based MMMs.
Publisher: Wiley
Date: 26-02-2020
DOI: 10.1111/OPN.12312
Abstract: The aim of this study was to determine physical, behavioural and psychosocial effects of a newly developed mindfulness programme for older adults with type 2 diabetes relocating to long‐term care facility. Taiwan is viewed as an “aged society” with significant proportion of the population living in a long‐term care facility. Approximately one third of residents living in long‐term care facilities have been diagnosed with type 2 diabetes, and disruption to management of their glycaemic levels is at risk for up to one year after relocating to a long‐term care facility. A cluster randomised controlled trial was used to examine the effects of a newly developed mindfulness programme on outcomes of glycaemic levels, relocation stress and depression. A total of 140 participants were recruited from six long‐term care facilities in Southern Taiwan. A mindfulness programme was delivered over 9 weeks and consisted of meditations, education and exercise techniques that were delivered by a Registered Nurse trained in mindfulness strategies. Participants in the control group received routine care as provided in the facilities, including routine check‐ups at diabetes clinics as necessary. Data were analysed by Johnson–Neyman technique and generalised estimating equations. In total, 120 residents completed the study. The majority of patients were female (64.8%), and 83.5% of the s le were financially supported by their children. The results showed significant improvements in glycated haemoglobin (HbA1c), relocation stress (Wald χ 2 = 78.91) and depression (Wald χ 2 = 45.70) between groups. In the intervention group, the mean of HbA1c levels showed 16.4% reduction ( Mean differences = 1.3 SD = 0.3). However, there were no significant differences in relocation stress and depression within groups. The results provided positive effects of the mindfulness programme for older people with diabetes moving into long‐term care facilities. The programme will assist in future planning for diabetes care in long‐term care facilities. To incorporate the mindfulness program into existing diabetes education programs for older people living in LTCFs. Further investigation on the sustainability of the mindfulness program is warranted.
Publisher: Oxford University Press (OUP)
Date: 10-2013
DOI: 10.1373/CLINCHEM.2012.200204
Abstract: The use of nonstandardized N-terminal pro–B-type natriuretic peptide (NT-proBNP) assays can contribute to the misdiagnosis of heart failure (HF). Moreover, there is yet to be established a common consensus regarding the circulating forms of NT-proBNP being used in current assays. We aimed to characterize and quantify the various forms of NT-proBNP in the circulation of HF patients. Plasma s les were collected from HF patients (n = 20) at rest and stored at −80 °C. NT-proBNP was enriched from HF patient plasma by use of immunoprecipitation followed by mass spectrometric analysis. Customized homogeneous sandwich AlphaLISA® immunoassays were developed and validated to quantify 6 fragments of NT-proBNP. Mass spectrometry identified the presence of several N- and C-terminally processed forms of circulating NT-proBNP, with physiological proteolysis between Pro2-Leu3, Leu3-Gly4, Pro6-Gly7, and Pro75-Arg76. Consistent with this result, AlphaLISA immunoassays demonstrated that antibodies targeting the extreme N or C termini measured a low apparent concentration of circulating NT-proBNP. The apparent circulating NT-proBNP concentration was increased with antibodies targeting nonglycosylated and nonterminal epitopes (P & 0.05). In plasma collected from HF patients, immunoreactive NT-proBNP was present as multiple N- and C-terminally truncated fragments of the full length NT-proBNP molecule. Immunodetection of NT-proBNP was significantly improved with the use of antibodies that did not target these terminal regions. These findings support the development of a next generation NT-proBNP assay targeting nonterminal epitopes as well as avoiding the central glycosylated region of this molecule.
Publisher: The Electrochemical Society
Date: 2018
DOI: 10.1149/2.1131809JES
Publisher: Elsevier BV
Date: 10-2020
Publisher: American Chemical Society (ACS)
Date: 13-02-2013
DOI: 10.1021/JP312491M
Publisher: Elsevier BV
Date: 05-2013
DOI: 10.1016/J.IJCARD.2011.08.083
Abstract: Health status is an important outcome measure that incorporates multiple dimensions of health, including symptoms, functional status, and psychosocial factors. While health status has been shown to be a predictor for hospital readmission, morbidity and mortality in the heart failure setting, there are limited data in cardiac genetic disease. We examined health status in a number of cardiac genetic disease groups compared to the general Australian population. A total of 409 in iduals were assessed. In iduals with inherited cardiomyopathies [hypertrophic cardiomyopathy (HCM), familial dilated cardiomyopathy (FDC), arrhythmogenic right ventricular cardiomyopathy (ARVC)] and primary arrhythmogenic disorders [long QT syndrome (LQTS), catecholaminergic polymorphic ventricular tachycardia (CPVT)], as well as their first-degree relatives, completed the Medical Outcomes Survey Short Form-36 (SF-36). The physical and mental component scores (PCS and MCS) and SF-6D utility score were assessed. Patients with HCM (p<0.001), FDC (p<0.05), and CPVT (p<0.05) were found to have a significantly lower PCS, while patients with LQTS (p<0.01) had a lower MCS. In iduals at risk of HCM (p<0.0001) and genotype positive-phenotype negative HCM patients (p<0.01) both had a higher PCS and utility scores compared to the clinically affected HCM population. In iduals at risk of LQTS had significantly higher PCS than those with a clinical diagnosis of LQTS (p<0.05) and similarly in iduals at risk of FDC had significantly higher PCS than FDC patients (p<0.05). In HCM, female gender (p=0.002), presence of co-morbidities (p<0.0001) and higher NYHA functional class (p<0.0001) were predictors of a lower PCS. Patients with a clinical diagnosis of a genetic heart disease have an impaired health status, related to both physical and mental function. Clinical management strategies in such patient groups need to consider health status as an important outcome measure.
Publisher: Wiley
Date: 19-01-2020
Abstract: Invited for this month's cover is the group of Tom Rufford at the University of Queensland. The image shows how choline chloride and urea in a reline solution interact with the surface of a silver cathode to enhance the selectivity of electrochemical CO
Publisher: Elsevier BV
Date: 2017
Publisher: Wiley
Date: 19-01-2020
Publisher: Elsevier BV
Date: 06-2021
Publisher: Wiley
Date: 23-09-2017
DOI: 10.1007/S10897-017-0152-1
Abstract: Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a rare inherited arrhythmogenic disease with a high risk of sudden cardiac death. The impact on health-related quality of life (HR-QoL) and psychosocial outcomes is not known. We sought to provide the first description of HR-QoL and psychosocial wellbeing of adults with CPVT, parents of affected children and at-risk relatives. Participants were recruited through the Australian Genetic Heart Disease Registry and invited to complete a cross-sectional survey comprising a number of validated scales and open-ended questions. Thirty-five participants completed surveys (response rate 65%), including 19 with CPVT, 10 unaffected parents of a child with CPVT, and 7 at-risk relatives (one participant considered patient and parent). Young patients <40 years were significantly more likely to report anxiety (p = 0.04), depression (p = 0.03) and posttraumatic stress symptoms (p = 0.02) compared to older CPVT patients. Further, young patients with an implantable cardioverter defibrillator (ICD) reported significantly worse device-related distress (p = 0.04) and shock anxiety (p = 0.003). Patients with a genetic diagnosis had worse psychological adaptation than those patients without a gene result. Parents perceived their affected children to have poor quality of life across all subdomains compared to healthy age-matched children, however quality of life of parents and at-risk relatives was comparable to population norms. Ongoing psychosocial care is required for young people with CPVT. Those with an ICD and/or undergoing genetic testing may require additional support. The challenges of CPVT management should extend beyond the clinical and genetic aspects of care to incorporate greater psychosocial support, and further reinforces the need for a multidisciplinary approach to care.
Publisher: MDPI AG
Date: 22-11-2019
DOI: 10.3390/BIOM9120766
Abstract: Screening for systolic heart failure (SHF) has been problematic. Heart failure management guidelines suggest screening for structural heart disease and SHF prevention strategies should be a top priority. We developed a multi-protein biomarker panel using saliva as a diagnostic medium to discriminate SHF patients and healthy controls. We collected saliva s les from healthy controls (n = 88) and from SHF patients (n = 100). We developed enzyme linked immunosorbent assays to quantify three specific proteins eptide (Kallikrein-1, Protein S100-A7, and Cathelicidin antimicrobial peptide) in saliva s les. The analytical and clinical performances and predictive value of the proteins were evaluated. The analytical performances of the immunoassays were all within acceptable analytical ranges. The multi-protein panel was able to significantly (p 0.001) discriminate saliva s les collected from patients with SHF from controls. The multi-protein panel demonstrated good performance with an overall diagnostic accuracy of 81.6% (sensitivity of 79.2% and specificity of 85.7%) when distinguishing SHF patients from healthy in iduals. In conclusion, we have developed immunoassays to measure the salivary concentrations of three proteins combined as a panel to accurately distinguish SHF patients from healthy controls. While this requires confirmation in larger cohorts, our findings suggest that this three-protein panel has the potential to be used as a biomarker for early detection of SHF.
Publisher: Elsevier BV
Date: 12-2009
Publisher: American Chemical Society (ACS)
Date: 28-06-2019
Publisher: American Chemical Society (ACS)
Date: 20-04-2020
Publisher: Elsevier BV
Date: 08-2015
Publisher: Springer Science and Business Media LLC
Date: 24-04-2020
DOI: 10.1038/S41467-020-15873-X
Abstract: The development of oxygen evolution reaction (OER) electrocatalysts remains a major challenge that requires significant advances in both mechanistic understanding and material design. Recent studies show that oxygen from the perovskite oxide lattice could participate in the OER via a lattice oxygen-mediated mechanism, providing possibilities for the development of alternative electrocatalysts that could overcome the scaling relations-induced limitations found in conventional catalysts utilizing the adsorbate evolution mechanism. Here we distinguish the extent to which the participation of lattice oxygen can contribute to the OER through the rational design of a model system of silicon-incorporated strontium cobaltite perovskite electrocatalysts with similar surface transition metal properties yet different oxygen diffusion rates. The as-derived silicon-incorporated perovskite exhibits a 12.8-fold increase in oxygen diffusivity, which matches well with the 10-fold improvement of intrinsic OER activity, suggesting that the observed activity increase is dominantly a result of the enhanced lattice oxygen participation.
Publisher: Wiley
Date: 20-05-2016
DOI: 10.1002/EJHF.592
Publisher: American Chemical Society (ACS)
Date: 28-02-2011
DOI: 10.1021/CM103534X
Publisher: Elsevier BV
Date: 04-2018
DOI: 10.1016/J.COLSURFB.2018.01.033
Abstract: The development of an orientation immobilization technique via affinity between polyhistidine tags and metal ions aims at maintaining biocatalytic activity of the enzymes. In this work, to tackle the issue of the immobilization of adenylate cyclase (AC), a simple and effective approach of synthesizing iminodiacetic acid (IDA)-Ni
Publisher: Radcliffe Group Ltd
Date: 2016
Abstract: Angiotensin-converting enzyme inhibitors (ACEIs) have been the cornerstone of treatment of heart failure with reduced ejection fraction (HFrEF) for over two decades. Inhibition of neprilyisin augments vasoactive substances including natriuretic peptides, which may have multiple advantageous effects in chronic HF. Early studies of neprilyisin inhibition led to drug discontinuation due to lack of efficacy or safety concerns. Sacubitril/valsartan is a first-in-class combined angiotensin receptor/neprilysin inhibitor (ARNI). The PARADIGM-HF study demonstrated robust superiority of ARNI compared with enalapril in patients with chronic symptomatic HFrEF, raising the question of whether ACEI should still have a role in the management of HFrEF.
Publisher: Elsevier BV
Date: 04-2021
Publisher: Elsevier BV
Date: 09-2021
Publisher: Wiley
Date: 23-07-2009
DOI: 10.1002/AIC.11857
Publisher: Oxford University Press (OUP)
Date: 22-03-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3RA44250K
Publisher: University of Buckingham Press
Date: 03-06-2015
Abstract: Rationale, aims and objectives: Patients with both cardiac disease and diabetes have poorer health outcomes than patients with only one chronic condition. While evidence indicates that internet based interventions may improve health outcomes for patients with a chronic disease, there is no literature on internet programs specific to cardiac patients with comorbid diabetes. Therefore this study aimed to develop a specific web-based program, then to explore patients’ perspectives on the usefulness of a new program.Methods: The interpretive approach using semi-structured interviews on a purposive s le of eligible patients with type 2 diabetes and a cardiac condition in a metropolitan hospital in Brisbane, Australia. Thematic analysis was undertaken to describe the perceived usefulness of a newly developed Heart2heart webpage.Results: Themes identified included confidence in hospital health professionals and reliance on doctors to manage conditions. Patients found the webpage useful for managing their conditions at home.Conclusions: The new Heart2heart webpage provided a positive and useful resource. Further research on to determine the potential influence of this resource on patients’ self-management behaviours is paramount. Implications for practice include using multimedia strategies for providing information to patients’ comorbidities of cardiac disease and type 2 diabetes, and further development on enhancement of such strategies.
Publisher: Wiley
Date: 20-05-2021
Abstract: Interactions of electrolyte ions at electrocatalyst surfaces influence the selectivity of electrochemical CO 2 reduction (CO 2 R) to chemical feedstocks like CO. We investigated the effects of anion type in aqueous choline halide solutions (ChCl, ChBr, and ChI) on the selectivity of CO 2 R to CO over an Ag foil cathode. Using an H‐type cell, we observed that halide‐specific adsorption at the Ag surface limits CO faradaic efficiency (FE CO ) at potentials more positive than −1.0 V vs. reversible hydrogen electrode (RHE). At these conditions, FE CO increased from I − Br − Cl − , that is, in the opposite order to the strength of specific adsorption of the halide ions (Cl − Br − I − ). At potentials of −1.0 to −1.3 V vs. RHE, restructuring of the Ag surface in ChI and ChCl via dissolution and re‐electrodeposition led to more CO‐selective Ag facets ([220], [311], and [222]) than in ChBr. This mechanism allowed very high faradaic efficiencies for CO of 97±2 % in ChI and 94±2 % in ChCl to be achieved simultaneously with high current densities at −1.3 V vs. RHE. We also demonstrate that high selectivity to CO (FE CO %) in ChCl (at −0.75±0.06 Vvs. RHE) and ChI (at −0.78±0.17 V vs. RHE) could be achieved at a current density of 150 mA cm −2 in a continuous flow‐cell electrolyser with Ag nanoparticles on a commercial gas diffusion electrode. This study provides new insights to understand the interactions of anions with catalysts and offers a new method to modify electrocatalyst surfaces.
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0EE03756G
Abstract: Opportunities, challenges and design criteria associated with Gas diffusion electrodes (GDEs) for various electrochemical applications.
Publisher: Elsevier BV
Date: 02-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4DT03927K
Abstract: Three new amino-functionalized MOFs based on 2-aminoterephthalic acid with Mg( ii ), Co( ii ) and Sr( ii ) ions.
Publisher: Elsevier BV
Date: 09-2022
DOI: 10.1016/J.COLSURFB.2022.112585
Abstract: Enzyme catalysis has clear advantages in the process of oxidizing glucose to produce gluconic acid. In the enzyme cascade, the improvement of the cascade efficiency is desired but challenging. Graphene oxide (GO) and ZIF-8 composites as enzyme support offer the promising opportunity that not only the cascade efficiency can be improved by control the distance between two enzymes, but also the stability can be improved. Here, a new strategy of GO assisted co-growth of ZIF-8 and enzyme was carried in a one-pot synthesis. Glucose oxidase&catalase immobilized in the ZIF-8/GO composites can obtain 98% residual activity after 15 days of storage with almost no enzyme shedding. The residual activity is still higher than 75% after 5 repeated uses. The presented method of controllable growth of metal organic frameworks on 2D nanosheet can also be extended for renewable energy devices, gas storage and separation of small molecules.
Publisher: Massachusetts Medical Society
Date: 14-01-2021
Publisher: AMPCo
Date: 23-07-2018
DOI: 10.5694/MJA17.01109
Abstract: To examine whether there are sex differences in the characteristics, management, and clinical outcomes of patients with an ST-elevation myocardial infarction (STEMI). Design, setting: Cohort study analysis of data collected prospectively by the CONCORDANCE acute coronary syndrome registry from 41 Australian hospitals between February 2009 and May 2016. 2898 patients (2183 men, 715 women) with STEMI. Rates of revascularisation (percutaneous coronary intervention [PCI], thrombolysis, coronary artery bypass grafting [CABG]), adjusted for GRACE risk score quartile. timely vascularisation rates major adverse cardiac event rates clinical outcomes and preventive treatments at discharge. The mean age of women with STEMI at presentation was 66.6 years (SD, 14.5 years), of men, 60.5 years (SD, 12.5 years). The proportions of women with hypertension, diabetes, prior stroke, chronic kidney disease, chronic heart failure, or dementia were larger than those of men fewer women had histories of previous coronary artery disease or myocardial infarction, or of prior PCI or CABG. Women were less likely to have undergone coronary angiography (odds ratio, adjusted for GRACE score quartile [aOR], 0.53 95% CI, 0.41-0.69) or revascularisation (aOR, 0.42 95% CI, 0.34-0.52) they were less likely to have received timely revascularisation (aOR, 0.72 95% CI, 0.63-0.83) or primary PCI (aOR, 0.76 95% CI, 0.61-0.95). Six months after admission, the rates of major adverse cardiovascular events (aOR, 2.68 95% CI, 1.76-4.09) and mortality (aOR, 2.17 95% CI, 1.24-3.80) were higher for women. At discharge, significantly fewer women than men received β-blockers, statins, and referrals to cardiac rehabilitation. Women with STEMI are less likely to receive invasive management, revascularisation, or preventive medication at discharge. The reasons for these persistent differences in care require investigation.
Publisher: Elsevier BV
Date: 02-2011
Publisher: BMJ
Date: 2019
DOI: 10.1136/HEARTASIA-2018-011122
Abstract: To ascertain the use of secondary prevention medications and cardiac rehabilitation after an acute coronary syndrome (ACS) and the impact on 2-year outcomes. CONCORDANCE (Cooperative National Registry of Acute Coronary care, Guideline Adherence and Clinical Events) is a prospective, observational registry of 41 Australian hospitals. A representative s le of 6859 patients with an ACS and 6 months’ follow-up on 31 May 2016 were included. The main outcome measure was use of ≥75% of indicated medications (≥4/5 (or ≥3/4 if contraindicated) of angiotensin-converting enzyme (ACE) inhibitor/angiotensin receptor blocker, beta-blocker, lipid-lowering therapy, aspirin and other antiplatelet). Major adverse cardiovascular events (MACE) included myocardial infarction, stroke or cardiovascular death. The mean age was 65±13 years, 29% were women, and the mean Global Registry of Acute Coronary Events (GRACE) score was 106±30. At discharge, 92% were on aspirin, 93% lipid-lowering therapy, 78% beta-blocker, 74% ACE/angiotensin receptor blocker and 73% a second antiplatelet 89% were taking ≥75% of medications at discharge, 78% at 6 months and 66% at 2 years. At 6 months, 38% attended cardiac rehabilitation, 58% received dietary advice and 32% of smokers reported quitting. Among 1896 patients followed to 2 years, death/MACE was less frequent among patients on ≥75% vs % of medications (8.3% vs 13.9% adjusted OR 0.75, 95 % CI 0.56 to 0.99), and was less frequent in patients who attended versus who did not attend cardiac rehabilitation (4.6% vs 13.4% adjusted OR 0.44, 95% CI 0.31 to 0.62). Use of secondary prevention therapies diminishes over time following an ACS. Patients receiving secondary prevention had decreased rates of death and MACE at 2 years.
Publisher: Elsevier BV
Date: 04-2019
DOI: 10.1016/J.HLC.2019.12.005
Abstract: Hypertrophic cardiomyopathy (HCM) is the most common cardiovascular genetic disorder. While our mechanistic understanding has been informed by elegant gene discovery studies that led to the term "disease of the sarcomere", more recent investigations have challenged the single-gene hypothesis. Multimodality imaging has allowed better phenotyping to facilitate early diagnosis, identify treatable phenocopies, and guide management. While HCM remains an important cause of sudden death, recent studies have reported a substantial cumulative burden of heart failure and atrial fibrillation in middle-aged and older in iduals. Nonetheless, improvements in risk stratification have allowed early intervention to transition HCM from being a common cause of sudden death in the young to a treatable chronic disease.
Publisher: Informa UK Limited
Date: 30-06-2020
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 10-05-2022
DOI: 10.1161/CIRCULATIONAHA.121.056161
Abstract: TEXTMEDS (Text Messages to Improve Medication Adherence and Secondary Prevention After Acute Coronary Syndrome) examined the effects of text message–delivered cardiac education and support on medication adherence after an acute coronary syndrome. TEXTMEDS was a single-blind, multicenter, randomized controlled trial of patients after acute coronary syndrome. The control group received usual care (secondary prevention as determined by the treating clinician) the intervention group also received multiple motivational and supportive weekly text messages on medications and healthy lifestyle with the opportunity for 2-way communication (text or telephone). The primary end point of self-reported medication adherence was the percentage of patients who were adherent, defined as % adherence to each of up to 5 indicated cardioprotective medications, at both 6 and 12 months. A total of 1424 patients (mean age, 58 years [SD, 11] 79% male) were randomized from 18 Australian public teaching hospitals. There was no significant difference in the primary end point of self-reported medication adherence between the intervention and control groups (relative risk, 0.93 [95% CI, 0.84–1.03] P =0.15). There was no difference between intervention and control groups at 12 months in adherence to in idual medications (aspirin, 96% vs 96% β-blocker, 84% vs 84% angiotensin-converting enzyme inhibitor/angiotensin receptor blocker, 77% vs 80% statin, 95% vs 95% second antiplatelet, 84% vs 84% [all P .05]), systolic blood pressure (130 vs 129 mm Hg P =0.26), low-density lipoprotein cholesterol (2.0 vs 1.9 mmol/L P =0.34), smoking ( P =0.59), or exercising regularly (71% vs 68% P =0.52). There were small differences in lifestyle risk factors in favor of intervention on body mass index kg/m 2 (21% vs 18% P =0.01), eating ≥5 servings per day of vegetables (9% vs 5% P =0.03), and eating ≥2 servings per day of fruit (44% vs 39% P =0.01). A text message–based program had no effect on medical adherence but small effects on lifestyle risk factors. URL: www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=364448 Unique identifier: ANZCTR ACTRN12613000793718.
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0EE00451K
Publisher: Wiley
Date: 24-07-2014
DOI: 10.1002/EJHF.135
Abstract: The clinical outcomes for patients with worsening chronic heart failure (WCHF) remain exceedingly poor despite contemporary evidence-based therapies, and effective therapies are urgently needed. Accumulating evidence supports augmentation of cyclic guanosine monophosphate (cGMP) signalling as a potential therapeutic strategy for HF with reduced or preserved ejection fraction (HFrEF and HFpEF, respectively). Direct soluble guanylate cyclase (sGC) stimulators target reduced cGMP generation due to insufficient sGC stimulation and represent a promising method for cGMP enhancement. The phase II SOluble guanylate Cyclase stimulatoR in heArT failurE Study (SOCRATES) programme consists of two randomized, parallel-group, placebo-controlled, double-blind, multicentre studies, SOCRATES-REDUCED (in patients with LVEF <45%) and SOCRATES-PRESERVED (in those with LVEF ≥ 45%), that will explore the pharmacodynamic effects, safety and tolerability, and pharmacokinetics of four dose regimens of the once-daily oral sGC stimulator vericiguat (BAY 1021189) over 12 weeks compared with placebo. These studies will enrol patients stabilized during hospitalization for HF at the time of discharge or within 4 weeks thereafter. The primary endpoint in SOCRATES-REDUCED is change in NT-proBNP at 12 weeks. The primary endpoints in SOCRATES-PRESERVED are change in NT-proBNP and left atrial volume at 12 weeks. SOCRATES will be the first programme to enrol specifically both inpatients and outpatients with WCHF and patients with reduced or preserved ejection fraction. Results will inform the benefits of pursuing subsequent event-driven clinical outcome trials with sGC stimulators in this patient population.
Publisher: American Chemical Society (ACS)
Date: 03-2019
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 09-2015
Publisher: Elsevier BV
Date: 06-2021
Publisher: American Chemical Society (ACS)
Date: 12-06-2012
DOI: 10.1021/JP3035105
Publisher: American Diabetes Association
Date: 06-11-2018
DOI: 10.2337/DC17-1414
Abstract: To explore temporal trends in antidiabetes drug (ADD) prescribing and intensification patterns, along with glycemic levels and comorbidities, and possible benefits of novel ADDs in delaying the need for insulin initiation in patients diagnosed with type 2 diabetes. Patients with type 2 diabetes aged 18–80 years, who initiated any ADD, were selected (n = 1,023,340) from the U.S. Centricity Electronic Medical Records. Those who initiated second-line ADD after first-line metformin were identified (subcohort 1, n = 357,482) the third-line therapy choices were further explored. From 2005 to 2016, first-line use increased for metformin (60–77%) and decreased for sulfonylureas (20–8%). During a mean follow-up of 3.4 years post metformin, 48% initiated a second ADD at a mean HbA1c of 8.4%. In subcohort 1, although sulfonylurea usage as second-line treatment decreased (60–46%), it remained the most popular second ADD choice. Use increased for insulin (7–17%) and dipeptidyl peptidase-4 inhibitors (DPP-4i) (0.4–21%). The rates of intensification with insulin and sulfonylureas did not decline over the last 10 years. The restricted mean time to insulin initiation was marginally longer in second-line DPP-4i (7.1 years) and in the glucagon-like peptide 1 receptor agonist group (6.6 years) compared with sulfonylurea (6.3 years, P & 0.05). Most patients initiate second-line therapy at elevated HbA1c levels, with highly heterogeneous clinical characteristics across ADD classes. Despite the introduction of newer therapies, sulfonylureas remained the most popular second-line agent, and the rates of intensification with sulfonylureas and insulin remained consistent over time. The incretin-based therapies were associated with a small delay in the need for therapy intensification compared with sulfonylureas.
Publisher: Public Library of Science (PLoS)
Date: 12-08-2014
Publisher: Springer Science and Business Media LLC
Date: 29-03-2018
Publisher: American Chemical Society (ACS)
Date: 27-06-2022
Abstract: Highly active catalysts with promising water retention are favorable for proton exchange membrane fuel cells (PEMFCs) operating under low-humidity/high-temperature conditions. When PEMFCs operate under low-humidity/high-temperature conditions, performance attenuation rapidly occurs owing to reduced proton conductivity of dehydrated membrane electrode assemblies. Herein, we load platinum onto a perovskite-carbon joint substrate (BaZr
Publisher: Wiley
Date: 22-01-2013
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0RE00396D
Abstract: Catalyst dimensionality is essential for the reactivity and selectivity of gas-diffusion electrodes for CO 2 electrochemical reduction to produce formate.
Publisher: Elsevier BV
Date: 04-2009
Publisher: American Chemical Society (ACS)
Date: 07-2015
Abstract: Carbon nanotube (CNT) mixed-matrix membranes (MMMs) show great potential to achieve superior gas permeance because of the unique structure of CNTs. However, the challenges of CNT dispersion in polymer matrix and elimination of interfacial defects are still hindering MMMs to be prepared for high gas selectivity. A novel CNT/metal-organic framework (MOF) composite derived from the growth of NH2-MIL-101(Al) on the surface of CNTs have been synthesized and applied to fabricate polyimide-based MMMs. Extra amino groups and active sites were introduced to external surface of CNTs after MOF decoration. The good adhesion between the synthesized CNT-MIL fillers and polymer phase was observed, even at a high filler loadings up to 15%. Consequently, MMMs containing the synthesized MOF/CNT composite exhibit not only a large CO2 permeability but also a high CO2/CH4 selectivity the combined performance of permeability and selectivity is even above the Robeson upper bound. The strategy of growing MOFs on CNTs can be further utilized to develop a more effective approach to further improve MMM performance through the decoration of MOFs on existing fillers that have high selectivity to specific gas.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0CC00664E
Abstract: In situ vitrification of MOF within polymer can rigidify the polymer chains and remove interfacial defects, leading to a significantly enhanced membrane selectivity.
Publisher: Elsevier BV
Date: 03-2019
DOI: 10.1016/J.FOODCHEM.2018.09.077
Abstract: To achieve efficient one-step production of gluconic acid, cascade reactions of glucose oxidase (GOD) and catalase (CAT) have been advocated in the biocatalysis system. In this work, the methodology of co-immobilization of GOD and CAT was investigated in details for obtaining improved enzyme loading and activity. The maximum adsorption capability of GOD and CAT was 24.18 and 14.33 mg·g
Publisher: Springer Science and Business Media LLC
Date: 26-05-2022
DOI: 10.1007/S11136-021-02884-4
Abstract: The MacNew Heart Disease Health-Related Quality of Life Instrument (MacNew) is a validated, clinically sensitive, 27-item disease-specific questionnaire. This study aimed to develop a new heart disease-specific classification system for the MacNew amenable for use in health state valuation. Patients with heart disease attending outpatient clinics and inpatient wards in Brisbane, Australia, completed MacNew. The development of the new disease-specific classification system included three stages. First, a principal component analysis (PCA) established dimensionality. Second, Rasch analysis was used to select items for each dimension. Third, Rasch analysis was used to explore response-level reduction. In addition, clinician and patient judgement informed item selection. Participants included 685 patients (acute coronary 6%, stable coronary 41%, chronic heart failure 20%). The PCA identified 4 dimensions (restriction, emotion, perception of others, and symptoms). The restriction dimension was ided into physical and social dimensions. One item was selected from each to be included in the classification system. Three items from the emotional dimension and two symptom items were also selected. The final classification system had seven dimensions with four severity levels in each: physical restriction excluded from doing things with other people worn out or low in energy frustrated, impatient or angry unsure and lacking in self-confidence shortness of breath and chest pain. This study generated a brief heart disease-specific classification system, consisting of seven dimensions with four severity levels in each. The classification system is amenable to valuation to enable the generation of utility value sets to be developed for use in economic evaluation.
Publisher: Springer Science and Business Media LLC
Date: 02-02-2017
Publisher: Elsevier BV
Date: 11-2017
Publisher: Elsevier BV
Date: 07-2020
Publisher: Elsevier BV
Date: 04-2021
Publisher: Elsevier BV
Date: 09-2019
DOI: 10.1016/J.HLC.2019.03.013
Abstract: The 2016 American Society of Echocardiography/European Association of Echocardiography (ASE/EACVI) guidelines on the assessment of diastolic function sought to simplify the assessment of diastolic function by recommending a streamlined, stepped approach with a focus on four key variables. Haemodynamic validation using simultaneous cardiac catheterisation and echocardiographic assessment of diastolic function have shown robust prediction of left ventricular filling pressure (LVFP) using the streamlined 2016 algorithms, with favourable comparisons to the 2009 guidelines. Similarly, prognostic validation data demonstrates that the 2016 algorithms are easier to implement in clinical practice, have superior inter-observer reliability across a broad range of observer experience, and are better at predicting clinical outcomes. Furthermore, published data show improved classification of clinical heart failure patients. However, increased specificity of the updated 2016 guidelines results in a lower prevalence of diastolic dysfunction compared to the 2009 recommendations. Further refinement of guidelines for the identification and diagnosis of diastolic dysfunction is possible through incorporation of new diastolic parameters.
Publisher: The Electrochemical Society
Date: 05-2020
DOI: 10.1149/MA2020-01361518MTGABS
Abstract: Electrochemical CO 2 reduction (CO 2 R) could potentially be used with electricity from renewable sources to convert CO 2 into various products such as CO, formic acid (HCOOH), methane (CH 4 ), ethylene (C 2 H 6 ), etc. The overall efficiency of the CO 2 R process is largely linked to the catalyst on which CO 2 is being reduced. However, the local environment surrounding the catalyst is generally subjected to reaction-driven changes during CO 2 R which play a significant role in affecting the overall efficiency, product selectivity, and reaction rate. Therefore, the understanding of catalyst-electrolyte interactions during CO 2 R could be effective in further improving the performance of the catalyst. For ex le, the potential buffering effects of different alkali cations at the catalyst surface due to variations in cation hydrolysis can influence the local proton concentration and thus CO 2 R. 1 The surface tethering of catalyst surface with functional additives such as glycine 2 , poly(acrylamine) 3 , thiol group 4 , etc. have been shown to improve product selectivity by affecting the binding strength with CO 2 R intermediates. In our recent work 5 , we uncovered that the interactions between a polycrystalline Ag foil and reline solution including (i) in-situ nano-structuring of Ag foil by electrodeposition of dissolute native Ag oxide layer, (ii) HER suppression by specifically adsorbed choline ions which restrict the protons availability at the interface, and (iii) stabilization of CO 2 R intermediates by hydrogen bonding with amino group of urea led to a remarkable CO selectivity of (96±8)% at - 0.884 V vs. RHE. Anions of the electrolyte especially halide ions (Cl - , Br - , and I - ) have been reported to affect both the selectivity and activity of CO 2 R. 6, 7 Specifically adsorbed halide ions can modulate the coverage of adsorbed CO on the catalyst surface by stabilizing the intermediates. 8 Moreover, halide ions can induce morphological changes of the catalyst surface during CO 2 R which have demonstrated to enhance the selectivity of CO over Ag catalysts. 9 Inspired by the effect of halide ions, we are investigating the role of different halide ions such as Cl - , Br - and I - in choline based electrolytes over Ag foil for CO 2 R. Our initial experiments have shown that at less negative potentials (between – 1.0 to – 0.7 V vs RHE), I - exhibited the lowest selectivity for CO, and we attribute this result to I - having the highest specific adsorption at the Ag surface and adsorbed I - may restrict the active sites for CO 2 R. However, at larger negative potentials the electrostatic repulsion between the Ag surface and specifically halide ions increases causing the interactions of the catalyst-halide ions to be weakened and thus improving the CO selectivity. SEM characterization of the Ag foil after CO 2 R has confirmed the change in morphology of the Ag surface (more-rougher). Moreover, we performed several flow-cell CO 2 R experiments over Ag-based gas diffusion electrodes (GDEs) and could achieve a CO selectivity over 90% at 150 mA·cm -2 in all three electrolytes. Therefore, altering the interactions between the Ag catalyst and choline-based halide ions during CO 2 R could be a potential approach to enhance the catalytic activity of Ag-metal or Ag nanoparticles. References 1. M. R. Singh, Y. Kwon, Y. Lum, J. W. Ager and A. T. Bell, J. Am. Chem. Soc. , 2016, 138 , 13006-13012. 2. M. S. Xie, B. Y. Xia, Y. Li, Y. Yan, Y. Yang, Q. Sun, S. H. Chan, A. Fisher and X. Wang, Energy Environ. Sci. , 2016, 9 , 1687-1695. 3. S. Ahn, K. Klyukin, R. J. Wakeham, J. A. Rudd, A. R. Lewis, S. Alexander, F. Carla, V. Alexandrov and E. Andreoli, ACS Catalysis , 2018, 8 , 4132-4142. 4. C. Kim, H. S. Jeon, T. Eom, M. S. Jee, H. Kim, C. M. Friend, B. K. Min and Y. J. Hwang, Journal of the American Chemical Society , 2015, 137 , 13844-13850. 5. S. Garg, M. Li, T. E. Rufford, L. Ge, V. Rudolph, R. Knibbe, M. Konarova and G. G. X. Wang, ChemSusChem , 2019, n/a . 6. K. Ogura, J. R. Ferrell, A. V. Cugini, E. S. Smotkin and M. D. Salazar-Villalpando, Electrochim. Acta , 2010, 56 , 381-386. 7. Y. Huang, C. W. Ong and B. S. Yeo, ChemSusChem , 2018, 11 , 3299-3306. 8. A. S. Varela, W. Ju, T. Reier and P. Strasser, ACS Catal. , 2016, 6 , 2136-2144. 9. D. Gao, R. M. Arán-Ais, H. S. Jeon and B. Roldan Cuenya, Nature Catalysis , 2019, 2 , 198-210.
Publisher: Elsevier BV
Date: 07-2021
Publisher: Wiley
Date: 05-07-2021
DOI: 10.1002/EHF2.13483
Abstract: To systematically review randomized controlled trials assessing effects of sodium–glucose cotransporter 2 inhibitors (SGLT2is) on hospitalization for heart failure (HHF) and cardiac structure/function and explore randomized controlled trial (RCT)‐derived evidence for SGLT2i efficacy mechanisms in heart failure (HF). Systematic searches of Medline and Embase were performed. In seven trials [3730–17 160 patients low risk of bias (RoB)], SGLT2is significantly reduced the relative risk of HHF by 27–39% vs. placebo, including in two studies in patients with HF with reduced ejection fraction with or without type‐2 diabetes mellitus (T2DM). Improvements in conventional cardiovascular risk factors, including glycaemic levels, cannot account for these effects. Five trials (56–105 patients low RoB) assessed the effects of 6–12 months of SGLT2i treatment on left ventricular structure/function four reported significant improvements vs. placebo, and one did not. Five trials (low RoB) assessed SGLT2i treatment effects on serum N‐terminal pro B‐type natriuretic peptide levels significant reductions vs. placebo were reported after 8–12 months (two studies 3730–4744 patients) but not ≤12 weeks (three studies 80–263 patients). Limited available RCT‐derived evidence suggests various possible cardioprotective SGLT2i mechanisms, including improved haemodynamics (natriuresis and reduced interstitial fluid without blood volume contraction/neurohormonal activation) and vascular function, enhanced erythropoiesis, reduced tissue sodium and epicardial fat/inflammation, decreased sympathetic tone, and beneficial changes in cellular energetics. Sodium–glucose cotransporter 2 inhibitors reduce HHF regardless of T2DM status, and reversal of adverse left ventricular remodelling likely contributes to this efficacy. Hypothesis‐driven mechanistic trials remain sparse, although numerous trials are planned or ongoing.
Publisher: Elsevier BV
Date: 12-2016
DOI: 10.1016/J.IJCARD.2016.09.001
Abstract: To improve up-titration of medications to target dose in heart failure patients by improving communication from hospital to primary care. This quality improvement project was undertaken within three heart failure disease management (HFDM) services in Queensland, Australia. A structured medication plan was collaboratively designed and implemented in an iterative manner, using methods including awareness raising and education, audit and feedback, integration into existing work practice, and incentive payments. Evaluation was undertaken using sequential audits, and included process measures (use of the titration plan, assignment of responsibility) and outcome measures (proportion of patients achieving target dose) in HFDM service patients with reduced left ventricular ejection fraction. Comparison of the three patient cohorts (pre-intervention cohort A n=96, intervention cohort B n=95, intervention cohort C n=89) showed increase use of the titration plan, a shift to greater primary care responsibility for titration, and an increase in the proportion of patients achieving target doses of angiotensin converting enzyme inhibitors/angiotensin receptor blockers (ACEI/ARB) (A 37% vs B 48% vs C 55%, p=0.051) and beta-blockers (A 38% vs B 33% vs C 51%, p=0.045). Combining all three cohorts, patients not on target doses when discharged from hospital were more likely to achieve target doses of ACEI/ARB (p<0.0001) and beta blockers (p<0.0001) within six months if they received a medication titration plan. A medication titration plan was successfully implemented in three HFDM services and improved transitional communication and achievement of target doses of evidence-based therapies within six months of hospital discharge.
Publisher: Elsevier BV
Date: 02-2021
Publisher: Elsevier BV
Date: 02-2008
Publisher: Elsevier BV
Date: 03-2019
Publisher: American Chemical Society (ACS)
Date: 27-02-2018
Publisher: Hindawi Limited
Date: 13-09-2018
DOI: 10.1155/2018/3232105
Abstract: A 24-year-old female with a diagnosis of primary carnitine deficiency, a rare inherited metabolic disorder predominantly described in the paediatric literature that causes cardiomyopathy, presented for evaluation after three months of nonadherence with prescribed carnitine therapy. Initial echocardiography demonstrated severe left ventricular dilation (104 ml/m 2 ) (normal 76 ml/m 2 ) with moderate systolic dysfunction (ejection fraction 40%) and severe right ventricular dilation with mild systolic dysfunction. Carnitine replacement was commenced, and a cardiac magnetic resonance imaging (MRI) performed five days later demonstrated dramatic improvement in biventricular function with normalization of left and right ventricular systolic function. To our knowledge, this is only the second case describing the rapid reversal of cardiomyopathy in an adult patient with this rare condition.
Publisher: Elsevier BV
Date: 10-2018
Publisher: Elsevier BV
Date: 04-2013
DOI: 10.1016/J.JCHF.2012.12.004
Abstract: This study evaluated the efficacy and safety of levosimendan, a positive inotropic drug with vasodilator effects, given intravenously to patients with acutely decompensated heart failure (ADHF). We performed 2 sequential trials, the first to develop a new measure of efficacy in 100 patients, and the second to use this measure to evaluate levosimendan in an additional 600 patients. Patients admitted with ADHF received placebo or intravenous levosimendan for 24 h in addition to standard treatment. The primary endpoint was a composite that evaluated changes in clinical status during the first 5 days after randomization. In the 600-patient trial, more levosimendan than placebo patients (58 vs. 44) were improved at all 3 pre-specified time points (6 h, 24 h, and 5 days), whereas fewer levosimendan patients (58 vs. 82) experienced clinical worsening (p = 0.015 for the difference between the groups). These differences were apparent, despite more frequent intensification of adjunctive therapy in the placebo group (79 vs. 45 patients). Improvements in patient self-assessment and declines in B-type natriuretic peptide levels with levosimendan persisted for 5 days and were associated with reduced length of stay (p = 0.009). Similar findings were present in the 100-patient pilot trial. Levosimendan was associated with more frequent hypotension and cardiac arrhythmias during the infusion period and a numerically higher risk of death across the 2 trials (49 of 350 on a regimen of levosimendan vs. 40 of 350 on a regimen of placebo at 90 days, p = 0.29). In patients with ADHF, intravenous levosimendan provided rapid and durable symptomatic relief. As dosed in this trial, levosimendan was associated with an increased risk of adverse cardiovascular events. (Evaluation of Intravenous Levosimendan Efficacy in the Short Term Treatment of Decompensated Chronic Heart Failure NCT00048425).
Publisher: Wiley
Date: 03-2021
DOI: 10.1002/EJHF.2115
Abstract: In this document, we propose a universal definition of heart failure (HF) as a clinical syndrome with symptoms and/or signs caused by a structural and/or functional cardiac abnormality and corroborated by elevated natriuretic peptide levels and/or objective evidence of pulmonary or systemic congestion. We also propose revised stages of HF as: At risk for HF (Stage A), Pre‐HF (Stage B), Symptomatic HF (Stage C) and Advanced HF (Stage D). Finally, we propose a new and revised classification of HF according to left ventricular ejection fraction (LVEF). This includes HF with reduced ejection fraction (HFrEF): symptomatic HF with LVEF ≤40% HF with mildly reduced ejection fraction (HFmrEF): symptomatic HF with LVEF 41–49% HF with preserved ejection fraction (HFpEF): symptomatic HF with LVEF ≥50% and HF with improved ejection fraction (HFimpEF): symptomatic HF with a baseline LVEF ≤40%, a ≥10 point increase from baseline LVEF, and a second measurement of LVEF 40%.
Publisher: Elsevier BV
Date: 12-2020
Publisher: Bentham Science Publishers Ltd.
Date: 15-07-2016
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9TA13298H
Abstract: This review of design and operating conditions of electrochemical CO 2 reduction covers electrolytes, electrodes, reactors, temperature, pressure, and pH effects.
Publisher: Informa UK Limited
Date: 16-04-2020
Publisher: Elsevier BV
Date: 09-2019
Publisher: MDPI AG
Date: 21-02-2022
DOI: 10.3390/JCM11041138
Abstract: Objective: The effect of baseline differences between men and women on early outcomes after percutaneous coronary intervention (PCI). Design, setting, participants: This is an observational study of all participants in the GenesisCare Cardiovascular Outcomes Registry, undergoing PCI. The registry holds data for both emergency and elective procedures. Data was collected on 10,989 consecutive patients from 12 Australian Private Hospitals, including baseline demographics, co-morbidities, risk factors, PCI procedures, and lesion characteristics. Main outcome measures: Outcome was measured for complications (in-hospital death, peri-procedural myocardial infarctions, and bleeding events), at discharge and at 30-days for death, myocardial infarction, target lesion revascularisation (TLR), major adverse cardiac events (MACE), and unplanned readmissions. Results: Women represented 23% of the study population, were significantly older, with a higher rate of hypertension and hyperlipidaemia. Heart failure was more common in women and was associated with a significantly higher average ejection fraction than in men. Women had a lower rate of pre-existing coronary artery disease (CAD), had less complex CAD, and needed fewer stents. Periprocedural complications were similar, but major bleeding was more common in women. The 30-day outcome was similar between men and women for death, myocardial infarction, target lesion revascularisation (TLR), major adverse cardiovascular events (MACE), and unplanned readmissions. Conclusions: Although significant differences were observed between women and men in both clinical presentation and complexity of disease, the 30-day outcome was similar for death and MACE. Women had a higher rate of major bleeding events, and lower adherence to statins and dual antiplatelet therapy (DAPT).
Publisher: Ivyspring International Publisher
Date: 2017
DOI: 10.7150/THNO.21727
Publisher: Wiley
Date: 27-02-2017
Abstract: Electrochemical water splitting is a promising method for storing light/electrical energy in the form of H
Location: Australia
Start Date: Start date not available
End Date: End date not available
Funder: Australian Research Council
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End Date: End date not available
Funder: Australian Research Council
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End Date: End date not available
Funder: Australian Research Council
View Funded ActivityStart Date: 2016
End Date: 02-2019
Amount: $270,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 02-2023
End Date: 01-2027
Amount: $813,340.00
Funder: Australian Research Council
View Funded ActivityStart Date: 04-2018
End Date: 12-2021
Amount: $239,727.00
Funder: Australian Research Council
View Funded ActivityStart Date: 12-2017
End Date: 12-2023
Amount: $350,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 11-2021
End Date: 11-2024
Amount: $419,000.00
Funder: Australian Research Council
View Funded Activity