Abstract
Radiofrequency Ablation in Frequent Ventricular Ectopy
Highlights
Ventricular premature beats (VPBs), referred to as ventricular premature complexes are early depolarization’s of ventricular myocardium arising in a variety of situations
Detailed intracardiac electrical mapping has demonstrated that the vast majority of outflow tract VPBs/ventricular tachycardia (VT) originate from the anterior and superior septal aspect of the right ventricular outflow tract (RVOT), just inferior to the pulmonic valve [17,18] Less commonly, the site of origin can be localized to the right ventricular (RV) infundibulum, RV free wall, and posterior aspect of the interventricular septum
High VPB burden may lead to tachycardia induced cardiomyopathy and severity of ventricular dysfunction has been correlated with VPB frequency
Summary
Ventricular premature beats (VPBs) are common findings and occur in broad spectrum of population including subjects with structurally normal hearts and those with cardiac disease, independent of severity. Most of these arise from right ventricular outflow tract and may be asymptomatic or may cause variety of symptoms. High VPB burden is associated with tachycardia induced cardiomyopathy. Symptomatic patients and patients with cardiomyopathy attributable to high VPB burden are offered drugs or catheter ablation. Catheter ablation has high success and low complication rate. Till date VPB frequency and the time point when ablation is recommended is still not clear
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