Long-term outcomes of catheter ablation of ventricular tachycardia in patients with structural heart disease

Journal of Arrhythmia
Masahiko GoyaHarushi Niu

Abstract

Catheter ablation of ventricular tachycardia (VT) is feasible. However, the long-term outcomes for different underlying diseases have not been well defined. Eighty-eight consecutive patients who underwent catheter ablation of VT using a three-dimensional mapping system were analyzed. The primary endpoint was any VT or ventricular fibrillation (VF) recurrence. Secondary endpoints were a composite of death or any VT/VF recurrence. Underlying heart diseases were remote myocardial infarction (remote MI) in 51 patients and non-ischemic cardiomyopathy in 37 (arrhythmogenic right ventricular cardiomyopathy [ARVC] in 18 patients, and dilated cardiomyopathy [NIDCM] in 19). Acute success was achieved in 82 of 88 (93%) patients. During a follow-up period of 39.2±4.6 months, VT recurred in 26 of 87 (30%), and VT/VF recurrence or death occurred in 39 of 87 (45%) patients. ARVC had better outcomes than NIDCM for the primary (p<0.05) and secondary endpoints (p<0.05). Remote MI-VT revealed a midrange outcome. The long-term outcomes after catheter ablation of VT varied according to the underlying heart disease. ARVC-VT ablation was associated with better long-term prognosis than NIDCM. Remote MI-VT demonstrated a midrange outcome.

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Citations

Sep 1, 2017·Circulation Journal : Official Journal of the Japanese Circulation Society·Yoshitaka KimuraKengo Kusano
Sep 16, 2020·Netherlands Heart Journal : Monthly Journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation·A A HendriksT Szili-Torok
Dec 7, 2016·Journal of Arrhythmia·Masato FukunagaMasashi Iwabuchi
Nov 21, 2020·Pacing and Clinical Electrophysiology : PACE·Indranill Basu-RayMohammad Saeed

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