Journal of arrhythmia · 2022
Predictors of recurrence in patients without non-inducibility of ventricular tachycardia at the end of ablation.
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Nakasone Kazutaka, Fukuzawa Koji, Kiuchi Kunihiko, Takami Mitsuru, Sakai Jun, Nakamura Toshihiro, Yatomi Atsusuke, Sonoda Yusuke, Takahara Hiroyuki, Yamamoto Kyoko, Suzuki Yuya, Tani Ken-Ichi, Iwai Hidehiro, Nakanishi Yusuke, Hirata Ken-Ichi
Аннотация
BACKGROUND: Ventricular tachycardia (VT) non-inducibility at the end of ablation is associated with a less likely VT recurrence. However, it is not clear whether we should use VT non-inducibility as a routine end point of VT ablation. The aim of this study was to evaluate VT recurrence in patients in whom VT non-inducibility was not achieved at the end of the radiofrequency (RF) ablation and the factors attributing to the VT recurrence.
METHODS: We analyzed that 62 patients in whom VT non-inducibility was not achieved at the end of the RF ablation were studied.
RESULTS: Over 2 years, 22 (35%) of the cases had VT recurrences. A multivariate analysis showed that an LVEF ≥35% (HR: 0.19; 95% CI: 0.06-0.49; p < .01) and elimination of the clinical VT as an acute ablation efficacy (HR: 0.23; 95% CI: 0.04-0.81; p = .02) were independent predictors of fewer VT recurrences. RF ablation was associated with a 91.1% reduction in VT episodes.
CONCLUSION: Even if VT non-inducibility was not achieved, patients with an LVEF ≥35% or in whom the clinical VT could be eliminated might be prevented from having VT recurrences. The validity of the VT non-inducibility of any VT should be evaluated considering each patient's background and the results of the procedure.
METHODS: We analyzed that 62 patients in whom VT non-inducibility was not achieved at the end of the RF ablation were studied.
RESULTS: Over 2 years, 22 (35%) of the cases had VT recurrences. A multivariate analysis showed that an LVEF ≥35% (HR: 0.19; 95% CI: 0.06-0.49; p < .01) and elimination of the clinical VT as an acute ablation efficacy (HR: 0.23; 95% CI: 0.04-0.81; p = .02) were independent predictors of fewer VT recurrences. RF ablation was associated with a 91.1% reduction in VT episodes.
CONCLUSION: Even if VT non-inducibility was not achieved, patients with an LVEF ≥35% or in whom the clinical VT could be eliminated might be prevented from having VT recurrences. The validity of the VT non-inducibility of any VT should be evaluated considering each patient's background and the results of the procedure.