1. Long-term outcomes of catheter ablation of ventricular tachycardia in patients with structural heart disease.
- Author
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Goya, Masahiko, Fukunaga, Masato, Hiroshima, Ken‐ichi, Hayashi, Kentaro, Makihara, Yu, Nagashima, Michio, An, Yoshimori, Ohe, Seiji, Yamashita, Kennosuke, Ando, Kenji, Yokoi, Hiroyoshi, Iwabuchi, Masashi, Katayama, Kouji, Ito, Tomoaki, and Niu, Harushi
- Abstract
Background Catheter ablation of ventricular tachycardia (VT) is feasible. However, the long-term outcomes for different underlying diseases have not been well defined. Methods 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). Results 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. Conclusions 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. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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