Evaluating Catheter Ablation Versus Conventional Management for Ventricular Arrhythmias in Arrhythmogenic Right

Fahad R Khan1, Shakeel Ahmed Memon1, Wasim Sajjad1

  • 1Cardiology, Lady Reading Hospital, Peshawar, PAK.

Cureus
|April 22, 2024
PubMed

Insights

Catheter ablation significantly reduces ventricular arrhythmias and hospital stays in arrhythmogenic right ventricular cardiomyopathy (ARVC) patients compared to conventional care. This approach shows a promising trend toward improved long-term survival for ARVC management.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Genetic Heart Diseases

Background:

  • Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a genetic disorder causing ventricular arrhythmias and sudden cardiac death.
  • Current management strategies for ARVC, particularly catheter ablation versus conventional care, require further comparative effectiveness research.

Purpose of the Study:

  • To evaluate the efficacy and safety of catheter ablation against conventional management in ARVC patients over five years.
  • To assess the impact on ventricular arrhythmia recurrence, complications, hospitalization, and mortality.

Main Methods:

  • Retrospective cohort study of 120 ARVC patients (January 2018 - December 2023).
  • Comparison between patients undergoing catheter ablation and those receiving conventional management.
  • Logistic regression analysis adjusted for demographics and clinical factors.

Main Results:

  • Catheter ablation significantly reduced ventricular arrhythmia recurrence (20% vs. 55%, p<0.01) and hospital stay duration (4 days vs. 7 days, p<0.05).
  • A trend towards reduced five-year mortality was observed with catheter ablation (5% vs. 15%, p=0.07).
  • Age, NYHA class, and exercise capacity were significant outcome predictors.

Conclusions:

  • Catheter ablation is superior to conventional management for reducing ventricular arrhythmias and hospitalizations in ARVC.
  • Catheter ablation demonstrates a promising trend for improved survival in ARVC patients.
  • Personalized management strategies are recommended, with a need for further research on long-term ablation benefits.

Related Concept Videos

Disturbances in Heart Rhythm01:28

Disturbances in Heart Rhythm

Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...
947
Mechanism of Cardiac Arrhythmias01:28

Mechanism of Cardiac Arrhythmias

Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
918
Antiarrhythmic Drugs: Class IV Agents as Calcium Channel Blockers01:20

Antiarrhythmic Drugs: Class IV Agents as Calcium Channel Blockers

Class IV antiarrhythmic drugs, such as verapamil and diltiazem, block calcium channels. They primarily affect the heart, slowing the conduction in calcium-dependent tissues like the SA and AV nodes. These drugs manage reentrant supraventricular tachycardia (SVT) and reduce ventricular rate in atrial flutter/fibrillation.
Verapamil, a calcium channel blocker, inhibits calcium movement across myocardial cell membranes and vascular smooth muscle. This results in the dilation of coronary and...
832
Antiarrhythmic Drugs: Class II Agents as &#946;-Adrenergic Blockers01:24

Antiarrhythmic Drugs: Class II Agents as β-Adrenergic Blockers

Adrenergic stimulation generally impacts cardiac rate and rhythm. Specifically, stimulation of the β-adrenoceptors triggers an increase in intracellular calcium ion influx and pacemaker currents, which may cause arrhythmias. Catecholamines like adrenaline also demonstrate β2-adrenoceptor-mediated hypokalemia, impacting cardiac action potential and disrupting the normal cardiac rhythm. Class II antiarrhythmic drugs are β-adrenoceptor antagonists or β-blockers, which...
741