Objective: LVADs are surgically implanted mechanical pumps that improve survival rates of individuals with advanced heart failure. LVAD therapy is associated with high morbidity, which can be partially attributed to challenges with detecting LVAD complications before adverse events occur. Current methods used to monitor for complications with LVAD support require frequent clinical assessments at specialized LVAD centers. Analysis of recorded precordial sounds may enable real-time, remote monitoring of device and cardiac function for early detection of LVAD complications. The dominance of LVAD sounds in the precordium limits the utility of routine cardiac auscultation of LVAD recipients. In this work, we develop a signal processing pipeline to mitigate sounds generated by the LVAD.
Methods: We collected in vivo precordial sounds from 17 LVAD recipients, and contemporaneous echocardiograms from 12 of these individuals, to validate heart valve closure timings.
Results: We characterized various acoustic signatures of heart sounds extracted from in vivo recordings, and report preliminary findings linking fundamental heart sound characteristics and level of LVAD support.
Conclusion: Mitigation of LVAD sounds from precordial sound recordings of LVAD recipients enables analysis of intrinsic heart sounds.
Significance: These findings provide proof-of-concept evidence of the clinical utility of heart sound analysis for bedside and remote monitoring of LVAD recipients.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1109/TBME.2021.3060718 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Glucagon-Like Peptide-1 Receptor Agonists in Patients With Durable Left Ventricular Assist Devices.
Artif Organs
January 2025
Division of Cardiology, Department of Medicine, Columbia University College of Physicians and Surgeons and NewYork-Presbyterian Hospital, New York, New York, USA.
Background: GLP-1 RAs improve cardiometabolic outcomes in obese, diabetic, and heart failure patients. Data on the safety and efficacy of GLP-1 RA in advanced heart failure with durable LVAD is limited.
Objectives: To assess the safety and efficacy of GLP-1 RA in durable LVAD patients.
Heart Transplantation Outcomes for Fontan Patients When Using Contemporary Strategies: Heart-Liver Transplantation and Ventricular Assist Device Therapy.
World J Pediatr Congenit Heart Surg
January 2025
The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
Background: With an increasing number of Fontan patients surviving into adulthood, the burden of end-stage heart failure is increasing. Prior studies have reported suboptimal heart transplantation (HTx) outcomes. Therefore, the authors describe their institutional experience of HTx in patients with Fontan circulation failure, including heart-liver transplantation (HLTx) and pretransplant systemic ventricular assist device (SVAD) therapies.
View Article and Find Full Text PDFLate-gadolinium enhancement predicts appropriate device therapies in non-ischemic recipients of primary prevention implantable cardioverter-defibrillators.
Heart Rhythm
January 2025
Department of Cardiovascular Medicine, Section of Cardiovascular Imaging, Cleveland Clinic Foundation, Cleveland, OH. Electronic address:
Background: Better risk stratification is needed to evaluate patients with non-ischemic cardiomyopathy (NICM) for prophylactic implantable cardioverter-defibrillators (ICD). Growing evidence suggests cardiac magnetic resonance imaging (CMR) may be useful in this regard.
Objective: We aimed to determine if late-gadolinium enhancement (LGE) seen on CMR (dichotomized as none/minimal <2% vs significant ≥2%) predicts appropriate ICD therapies (primary endpoint) and/or all-cause mortality/transplant/left-ventricular assist device (LVAD) implantation (secondary endpoint) in NICM patients.
The Pivotal Role of an Early Post-Acute Cardiac Rehabilitation as an Evidence-Based Management of Left Ventricular Assist Device Patients.
Artif Organs
January 2025
Istituti Clinici Scientifici Maugeri IRCCS, Cardiology Rehabilitation Unit of Gattico-Veruno Institute, Gattico-Veruno, Italy.
Background: Left Ventricular Assist Device (LVAD) implantation is an important treatment option for patients with advanced CHF. Referral to an early, intensive cardiac rehabilitation (CR) program in these patients seems still underused. This observational descriptive study aimed to evaluate the feasibility and efficacy of an early intensive CR program in LVAD recipients, also comparing results with a matched group of advanced HFrEF patients.
View Article and Find Full Text PDFIs There an Association Between Living in a Rural Area and the Incidence of Postoperative Complications or Hospital Readmissions Following Left Ventricular Assist Device (LVAD) Implantation, Compared to Urban Lvad Recipients? A Systematic Review.
Clin Cardiol
January 2025
Department of Research, Future Forwards Research Institute, Piscataway, New Jersey, USA.
Background: Left ventricular assist devices (LVADs) are utilized as a therapeutic option for patients with end-stage heart failure. While LVAD implantation can enhance survival rates and quality of life, the procedure has its risks, and postoperative complications are common. This review aims to investigate whether there is an association between living in a rural area and the incidence of postoperative complications or hospital readmissions following LVAD implantation, compared to urban LVAD recipients.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!