None listed
Conditions
Brief summary
The AUSCA patch is a non-invasive diagnostic tool that uses adhesive tape to stay insitu whilst in use. The patch can record, heart, lung and pulse waveforms using sound waves. The main aim of the study is to assess the ability of the AUSCA patch to record various observations, waveforms and haemodynamic measurements during rest and exercise of patients with cardiac disease. We would also like to analyse the waveforms gained from the AUSCA patch on patients who have an implanted Mechanical Circulatory Support (MCS) Device to gain more insight into the pump's function.
Interventions
The AUSCA Patch has been previously developed by a team at UNSW which consists of a more affordable and accurate alternative to stethoscope and ECG machines. The AUSCA patch is a small device that is placed in different positions using double-sided medical tape. The device will be placed in three different positions on the patient’s body using double-sided medical tape: (1) the wrist, (2) the chest, (3) the carotid. The AUSCA Patch will record auscultation waveforms and be stored in a password protected REDCap database that is only accessible to the study team. The AUSCA patch recordings will take altogether an additional 15 minutes. All recordings will be completed during clinic visits at the Heart and Lung clinic and Aortic Stenosis clinic at St Vincent's Hospital. Participants will undergo three different physiological interventions while having the AUSCA Pach attached to them: (1) inspiratory breath hold, (2) supine to standing manoeuvre and (3) a six-minute walk test. Additionally, all participants will be assessed on their frailty levels based on the Rockwood Clinical Frailty Scale where two independent assessors will complete the assessment.
Sponsors
Study design
Eligibility
Inclusion criteria
• Age range: 18 years or older • Willingness to give written informed consent and willingness to participate in and comply with the study • For heart failure patients, they need to be classified as New York Heart Association Grade III or IV • For aortic stenosis patients, patients would need to be classified as having an aortic valve area (AVA) = 1.0 cm2, mean pressure gradient (MPG) = 40 mmHg and must be scheduled to having a transaortic valve replacement (TAVR) intervention. • For mechanical circulatory supported patient groups, the patient must have a mechanical circulatory support device implanted in them at time of reading and recording
Exclusion criteria
• Patients with a history of a psychological illness or condition such as to interfere with the patient’s ability to understand the requirements of the study • Patients with an allergy to medical tape as the device requires this to stick to the patient’s body