Insights into Catheter Ablation of Ventricular Tachycardias in Arrhythmogenic Right Ventricular Cardiomyopathy / Dysplasia
Keywords:
sudden cardiac death, arrhythmogenic right ventricular cardiomyopathy/dysplasia, ventricular tachycardia/fibrillation, implantable cardioverter defibrillator, catheter ablation/mappingAbstract
Arrhythmogenic right ventricular cardiomyopathy/ dysplasia (ARVC/D), mostly affecting young/middle-aged individuals, poses a significant risk of malignant ventricular arrhythmias (VAs) and subsequent sudden cardiac death (SCD). Antiarrhythmic agents (AAA) provide insufficient arrhythmia suppression and prevention and can be proarrhythmic. Thus, the implantable cardioverter-defibrillator (ICD) is considered the first-line treatment, especially in patients with secondary prevention indication. Nevertheless, catheter ablation is an additional therapy to the ICD which has proved its efficacy in primary and secondary prevention of fatal arrhythmias and sudden cardiac death. The superiority of the combined endo- and epicardial VT ablation in this population is clear since ARVC/D substrate has been shown to be mostly epicardial. Due to progressive nature of ARVC/D, ablation seems to be a useful tool for the patients who experience recurrent VT episodes or electrical storms.Downloads
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