Mechanical Mobility Of The Thorax For Continuous Determination Of Lung Gas Volume
Funder
National Health and Medical Research Council
Funding Amount
$165,000.00
Summary
Percussion is a valuable clinical method for physical examination of parts of the body. A sharp tap (impulsive force) is applied to the body wall and the sound radiated in response is observed. This sound may be dull (over liver) or stony dull (pleural effusion), or resonant (over normal lung) or hyper-resonant (over bowel). While the variation in radiated sound is not fully understood, it is apparent that the presence of gas, which is highly compliant, increases mobility of the overlying tissue ....Percussion is a valuable clinical method for physical examination of parts of the body. A sharp tap (impulsive force) is applied to the body wall and the sound radiated in response is observed. This sound may be dull (over liver) or stony dull (pleural effusion), or resonant (over normal lung) or hyper-resonant (over bowel). While the variation in radiated sound is not fully understood, it is apparent that the presence of gas, which is highly compliant, increases mobility of the overlying tissue and allows it to resonate; where the sub-tissue is largely fluid, tissue mobility is low and the percussive sound is dull. Percussion is useful for examining the adult chest and lung, but cannot for example be applied in infant intensive care as only limited impulsive force can be used, and the adult finger, which is both a coupling device and sounding board, is too large. As well, percussion requires skill and quiet conditions. Accordingly, we developed a device to measure mobility of the chest and other tissues in real time. The VibroPulse applies a known low-level force to the body surface and records the resultant velocity induced in the surface. The force is generated by a vibrating mass set in motion by an electromagnetic motor driven by pseudo-random noise. Tissue mobility, defined as velocity-force, is derived simultaneously across the frequency range, providing an easily interpreted quantitative output unaffected by ambient noise. This proposal has two aims we can achieve in 1 year: (1) to continue evaluating VibroPulse sensitivity to tissue composition, using symmetrical percussive sites on the human chest and abdomen that are dull on one side and resonant on the other, and the chest of anaesthetised animals with experimentally induced pneumothorax and lung collapse, two life-threatening conditions for which percussion is a key diagnostic method, and (2) to engineer a small device from our bulky prototype that is suitable for clinical use, in infants and adults.Read moreRead less
A Comprehensive Self-Management Programme For Chronic Obstructive Pulmonary Disease In The Community
Funder
National Health and Medical Research Council
Funding Amount
$391,610.00
Summary
Chronic obstructive pulmonary disease (COPD) is the third leading cause of burden of disease in Australia. It has a major impact on sufferers, their carers and society. This study introduces a new model of community care, based on case management, mentoring to improve self-efficacy and information systems to deliver information and closely monitor disease status. This will improve the quality of life of sufferers, develop healthcare networks and decrease healthcare utilisation.
Centre For Clinical Research Excellence In Respiratory And Sleep Medicine
Funder
National Health and Medical Research Council
Funding Amount
$2,200,000.00
Summary
The CCRE will enhance Australia's international research reputation in clinical respiratory and sleep medicine by enhancing links between hospital-based investigators. This will foster development of new clinical researchers in these fields. Major research projects will include reducing side effects of asthma therapy in the elderly, better and cheaper ways of diagnosing disorders such as sleep apnoea and blood clots in the lung, keeping patients with chronic lung diseases out of hospital and avo ....The CCRE will enhance Australia's international research reputation in clinical respiratory and sleep medicine by enhancing links between hospital-based investigators. This will foster development of new clinical researchers in these fields. Major research projects will include reducing side effects of asthma therapy in the elderly, better and cheaper ways of diagnosing disorders such as sleep apnoea and blood clots in the lung, keeping patients with chronic lung diseases out of hospital and avoiding accidents due to lack of sleep.Read moreRead less
Characterisation Of Emerging New Signaling Networks That Underlie COPD Phenotypes
Funder
National Health and Medical Research Council
Funding Amount
$696,966.00
Summary
Incurable diseases such as chronic obstructive pulmonary disease are becoming increasingly prevalent in Australia’s aging population and new therapies are urgently needed. We have discovered a possible cause of severe emphysema and developed a novel method to image functional changes in the diseased lung. Using advanced molecular and imaging techniques we are now probing for ways to turn this discovery into effective treatments for this fatal disease.
Providing Translatable Evidence To Advance Prevention And Management Of COPD: A Longitudinal Study From The 1st To 7th Decade Of Life
Funder
National Health and Medical Research Council
Funding Amount
$2,893,320.00
Summary
Chronic obstructive pulmonary disease (COPD) makes breathing difficult and reduces wellbeing. People are more likely to get COPD from the age of 60 years, but we do not know why and who. Our study will develop tools to identify early who will develop COPD by 60 years. We will also develop a tool to identify 60-year-old individuals whose lung function is declining faster than normal. These findings will help us to better prevent and manage COPD.
Is Long Term Weekly Azithromycin Use For Bronchiectasis In Indigenous Children Associated With Antibiotic Resistance?
Funder
National Health and Medical Research Council
Funding Amount
$398,663.00
Summary
Aboriginal children living in remote areas such as central Australia experience unacceptably high rates of respiratory infection which can become chronic. A randomised controlled trial is being conducted to see if long-term azithromycin therapy reduces respiratory exacerbations in Aboriginal children with chronic lung disease. Concerns about the development of antibiotic resistance need to be addressed. This project aims to determine if such treatment is associated with antibiotic resistance.
I am a developmental lung physiologist who specialises in understanding the factors regulating normal and abnormal lung development as well as the physiological transformation of the lung into an efficient gas-exchange organ at birth.