Effect of Exercise on Outcome after Ventricular Tachycardia Ablation in Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy

Abstract

Competitive sports and intensive exercise are associated with adverse outcomes in patients with arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C). This study aimed to assess the role of exercise on long-term results of radiofrequency catheter ablation (RFCA) therapy of ventricular tachycardia (VT) in patients with ARVD/C. Exercise participation was evaluated by telephone or in-person interviews in patients from our ARVD/C registry with previous VT ablation (38 patients, 26 males, age 52.6±14.1years). Of 38 patients, 30 were involved in sports activities before RFCA. Only the minority of our patient population (21.1%) had a sedentary lifestyle before RFCA; 42.1 and 36.8% reported recreational or competitive sports, respectively. During the follow-up period of 52.5±31.4 months, 23 of the total 38 patients with previous RFCA (60.5%) remained free from VT recurrence. In univariate and binary logistic regression analysis, only advanced age was significantly associated with VT recurrence, with a hazard ratio of 1.15, and 95% confidence interval 1.05–1.26 (p=0.004). The results of our observational study indicate that recreational sports do not impair long-term results after RFCA treatment compared with a sedentary lifestyle. Furthermore, the dynamic component of recreational exercise did not affect the outcome of VT ablation in our patient population. Recreational exercise at low to moderate intensity is not associated with an increased risk for VT recurrence after catheter ablation in patients with ARVD/C.

Key words

ARVD/C - catheter ablation - ventricular tachycardia - recreational sports - exercise

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