Prognostic significance of accelerated ventricular response during radiofrequency ablation of premature ventricular complexes

Accelerated ventricular response is frequently observed during radiofrequency ablation (RFA) of premature ventricular complexes (PVCs). We hypothesized that acceleration indicates an appropriate site and adequate injury to the arrhythmogenic tissue, and sought to investigate its value in predicting...

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Published in:Indian pacing and electrophysiology journal 2020-11, Vol.20 (6), p.231-236
Main Authors: Patloori, Sirish Chandra Srinath, Manickavasagam, Anand, Chase, David, Roshan, John
Format: Article
Language:English
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Accelerated ventricular response
Original
Premature ventricular complexes
Radiofrequency ablation
Repetitive ventricular response
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description Accelerated ventricular response is frequently observed during radiofrequency ablation (RFA) of premature ventricular complexes (PVCs). We hypothesized that acceleration indicates an appropriate site and adequate injury to the arrhythmogenic tissue, and sought to investigate its value in predicting the outcome. We retrospectively analyzed RFA procedures performed for PVCs in our institution from 2011 to 2019. Fifty-eight patients (29 male; age 42.7 ± 15.6 years) underwent 62 RFA procedures. The most common site was the right ventricular outflow tract (67.7%). Acute success was seen in 88.7%. Accelerated ventricular response was observed in 60.0% of the successful procedures. After a median follow-up of 14.0 months (IQR: 6.0–26.6 months), 16 patients had a recurrence. Recurrence was significantly lower in the group with acceleration than in the group without acceleration (12.5% vs. 57.1%; log-rank P 
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subjects Accelerated ventricular response
Original
Premature ventricular complexes
Radiofrequency ablation
Repetitive ventricular response
title Prognostic significance of accelerated ventricular response during radiofrequency ablation of premature ventricular complexes
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