ORCID Profile
0000-0002-4756-1871
Current Organisations
University of Padua
,
Università di Padova
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Publications
Ergonomics perspective for identifying and reducing internal operative flow disruption for laparoscopic urological surgery
Publisher: Springer Science and Business Media LLC
Date: 28-04-2017
DOI: 10.1007/S00464-017-5568-Z
Abstract: The aim of this study is to examine operative flow disruption that occurs inside the surgical field, (internal operative flow disruption (OFD)), during urological laparoscopies, and to relate those events to external ergonomics environment in terms of monitor location, level of instruments' handles, and location of surgical team members. According to the our best knowledge, this is the first study of its kind. A combination of real and video-aided observational study was conducted in the operating rooms at hospitals in Australia and China. Brain storming sessions were first conducted to identify the main internal OFD events, and the observable reasons, potential external, and latent ergonomic factors were listed. A prospective observational study was then conducted. The observer's records and the related video records of internal surgical fields were analysed. Procedures were categorised into groups based on similarity in ergonomics environment. The mapping process revealed 39 types of internal OFD events resulted from six reasons. A total of 24 procedures were selected and arranged into two groups, each with twelve procedures. Group A was carried out under satisfactory ergonomics environment, while Group B was conducted under unsatisfactory ergonomics environment. A total of 1178 OFD events were detected delaying the total observed operative times (2966 min) by 220 min (7.43%). Average OFD/h in group A was less than 15, while in group B about 29 OFD/h. There are two main latent ergonomics factors affecting the surgeon's performance non-physiological posture and long-period static posture. The delays and number of internal OFD were nearly doubled where procedures were conducted under unsatisfactory external ergonomics environment. Some events such as stopping operation and irrelevant conversations during long procedures may have a positive influence on the surgeon's performance.
Distribution and genetic diversity of Anisakis spp. in cetaceans from the Northeast Atlantic Ocean and the Mediterranean Sea
Publisher: Springer Science and Business Media LLC
Date: 11-08-2022
DOI: 10.1038/S41598-022-17710-1
Abstract: Parasite bio ersity in cetaceans represents a neglected component of the marine ecosystem. This study aimed to investigate the distribution and genetic ersity of anisakid nematodes of the genus Anisakis s led in cetaceans from the Northeast Atlantic Ocean and the Mediterranean Sea. A total of 478 adults and pre-adults of Anisakis spp. was identified by a multilocus genetic approach (mtDNA cox 2 , EF1 α − 1 nDNA and nas 10 nDNA gene loci) from 11 cetacean species. A clear pattern of host preference was observed for Anisakis spp. at cetacean family level: A. simplex (s.s.) and A. pegreffii infected mainly delphinids A. physeteris and A. brevispiculata were present only in physeterids, and A. ziphidarum occurred in ziphiids. The role of cetacean host populations from different waters in shaping the population genetic structure of A. simplex (s.s.), A. pegreffii and A. physeteris was investigated for the first time. Significant genetic sub-structuring was found in A. simplex (s.s.) populations of the Norwegian Sea and the North Sea compared to those of the Iberian Atlantic, as well as in A. pegreffii populations of the Adriatic and the Tyrrhenian Seas compared to those of the Iberian Atlantic waters. Substantial genetic homogeneity was detected in the Mediterranean Sea population of A. physeteris. This study highlights a strong preference by some Anisakis spp. for certain cetacean species or families. Information about anisakid bio ersity in their cetacean definitive hosts, which are apex predators of marine ecosystems, acquires particular importance for conservation measures in the context of global climate change phenomena.
Clinico-pathological findings in a striped dolphin (<i>Stenella coeruleoalba</i>) affected by rhabdomyolysis and myoglobinuric nephrosis (capture myopathy)
Publisher: Japanese Society of Veterinary Science
Date: 2017
DOI: 10.1292/JVMS.17-0023
Hierarchical task analysis for identification of interrelationships between ergonomic, external disruption, and internal disruption in complex laparoscopic procedures
Publisher: Springer Science and Business Media LLC
Date: 30-01-2019
DOI: 10.1007/S00464-018-06656-Z
Abstract: Traditionally, hierarchical task analysis (HTA) in surgery examines observable disruption in a predefined set of tasks as performed, rather than examining the ergonomics requirements, which may predispose surgical teams to act erroneously. This research aims to address this gap in the literature. It develops a HTA protocol taking into consideration surgical team actions, observable external disruption, internal disruption, and ergonomic goals required for safer conducting procedures. Laparoscopic radical prostatectomy (LRP) is selected as a case. This research involved observations inside operating rooms (ORs) of three large teaching hospitals in Australia and China. Two rounds of observations are conducted: observations for developing HTA, and observations after presenting the developed HTA among surgical teams. The traditional HTA format is expanded to include two additional columns: technical considerations and ergonomics considerations. Two groups are formed from the observed LRPs. LRPs in the first group were conducted with no regard to the specified ergonomic goals and associated ergonomic features, and the second are conducted with the surgical teams attempting to follow specified ergonomic goals and features as prescribed in HTA. Careful attempt is required to select procedures such that the total operative times for both groups are approximately equal (± 5%). Between March 2016 and November 2017, a total of 29 LRPs were observed, and a HTA developed. The results reveal significant reduction (43%) in the total external disruptive events and approximately 58% reduction in the internal disruptive events in LRPs conducted with HTA requirements. The developed HTA appears to have some utility, but needs evaluation in larger studies. It can potentially be used as a training aid, and as a checklist for evaluating surgical performance.
Related Organisations
Related Funding Activities
No related grants have been discovered for Sandro Mazzariol.