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Exploring Cardiac Sympathetic Denervation as a Treatment Approach for Recurrent Ventricular Arrhythmias: A Concise
Andrei Gurau1, Frank Bosmans2, Andreas Barth3
1Division of Thoracic Surgery, Johns Hopkins University School of Medicine, Baltimore, USA.
Journal of Clinical & Experimental Cardiology
|December 9, 2024
Summary
Bilateral Cardiac Sympathetic Denervation (BCSD) shows promise for refractory ventricular arrhythmias (RVT), significantly reducing defibrillator shocks and improving survival. Further research is needed to confirm long-term benefits and risks.
Area of Science:
- Cardiology
- Neuromodulation
- Thoracic Surgery
Background:
- Refractory Ventricular Tachyarrhythmias (RVT) pose significant challenges, especially in patients with channelopathies and cardiomyopathies.
- The sympathetic nervous system plays a critical role in the pathophysiology of RVT.
- Surgical Cardiac Sympathetic Denervation (CSD) has evolved as a therapeutic option for intractable ventricular arrhythmias.
Purpose of the Study:
- To review the pathophysiological role of the sympathetic nervous system in RVT.
- To assess the efficacy of Bilateral Cardiac Sympathetic Denervation (BCSD) for RVT through a literature review.
Main Methods:
- Literature review of studies on Cardiac Sympathetic Denervation (CSD) for Refractory Ventricular Tachyarrhythmias (RVT).
- Analysis of outcomes associated with Bilateral CSD (BCSD) and Left CSD (LCSD).
- Inclusion of data on surgical approaches like Video-Assisted Thoracoscopic Surgery (VATS) and Robot-Assisted Thoracoscopic Surgery (RATS).
Main Results:
- BCSD is associated with significant reductions in implantable cardioverter defibrillator shocks (approx. 60%) and improved 1-year shock- and transplant-free survival (over 50%).
- 2017 AHA/ACC/HRS guidelines recommend LCSD for specific RVT etiologies like congenital long QT syndrome and CPVT.
- Robot-Assisted Thoracoscopic Surgery (RATS) offers shorter operative times compared to VATS for BCSD.
Conclusions:
- BCSD demonstrates potential to improve quality of life for severe RVT patients, but risks must be considered.
- Further comparative effectiveness and cost-effectiveness studies are required.
- Long-term impact of BCSD on morbidity and mortality requires additional investigation.
Keywords:
Anti-arrhythmic medicationsAutonomic nervous systemBilateral sympathectomyCardiac sympathetic denervationCatheter ablationDysautonomiaImplantable cardioverter defibrillatorIntractable ventricular tachyarrhythmiasIschemic cardiomyopathyMinimally invasive cardiac arrhythmia surgeryMinimally invasive surgeryNon-ischemic cardiomyopathyRecurrent ventricular tachyarrhythmiasRefractory ventricular tachyarrhythmiasRobotic assisted thoracoscopic surgerySurgical cardiac sympathetic denervationSympathectomySympathetic nervous systemVideo assisted thoracoscopic surgeryMore Related Videos
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