Outcomes after repeat ablation of ventricular tachycardia in structural heart disease: An analysis from the International VT Ablation Center Collaborative Group

Heart Rhythm : the Official Journal of the Heart Rhythm Society
Wendy S TzouWilliam H Sauer

Abstract

Data evaluating repeat radiofrequency ablation (>1RFA) of ventricular tachycardia (VT) are limited. The purpose of this study was to determine the safety and outcomes of VT >1RFA in patients with structural heart disease. Patients with structural heart disease undergoing VT RFA at 12 centers with data on prior RFA history were included. Characteristics and outcomes were compared between first-time (1RFA) and >1RFA patients. Of 1990 patients, 740 had >1RFA (mean 1.4 ± 0.9, range 1-10). >1RFA vs 1RFA patients did not differ with regard to age (62 ± 13 years vs 62 ± 13 years), left ventricular ejection fraction (33% ± 13% vs 34% ± 13%), or sex (88% vs 87% men), but they more often were nonischemic (53% vs 41%), had implantable cardioverter-defibrillator shocks (70% vs 63%) or VT storm (38% vs 33%), and had been treated with amiodarone (55% vs 48%) or ≥2 antiarrhythmic drugs (22% vs 14%). >1RFA procedures were longer (300 ± 122 minutes vs 266 ± 110 minutes), involved more epicardial access (41% vs 21%), induced VTs (2.4 ± 2.2 vs 1.9 ± 1.6) and only unmappable VTs (15% vs 9%), and VT was more often inducible after RFA (42% vs 33%, all P <.03). Total complications were higher for >1RFA vs 1RFA (8% vs 5%, P <.01), mostly related to pe...Continue Reading

Citations

Sep 2, 2017·Journal of the American Heart Association·Ryan G Aleong, William H Sauer
Mar 28, 2019·Scandinavian Cardiovascular Journal : SCJ·Danielle M HaanschotenArif Elvan
Sep 14, 2019·Circulation. Arrhythmia and Electrophysiology·Ying TianYong-Mei Cha
Jan 5, 2018·European Heart Journal·Cecilia Linde, Jan Steffel
Jul 11, 2020·Current Cardiology Reports·Andrea RadinovicPaolo Della Bella
Sep 16, 2020·Netherlands Heart Journal : Monthly Journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation·A A HendriksT Szili-Torok
Jan 1, 2021·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Paolo Della BellaFrancesca Baratto
Sep 26, 2020·JACC. Clinical Electrophysiology·Heajung L Nguyen, Marmar Vaseghi
Aug 4, 2018·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Fabrizio R AssisHarikrishna Tandri
Aug 10, 2018·JACC. Clinical Electrophysiology·Francis E MarchlinskiHaris M Haqqani
Sep 22, 2018·JACC. Clinical Electrophysiology·Omair K YousufDavid G Strauss

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