Abstract 2679: Radiofrequency Catheter Ablation of Ventricular Arrhythmias in Patients With Hypertrophic Cardiomyopathy: Safety and Feasibility
Introduction: Management of Ventricular Arrhythmias (VAs) in patients with Hypertrophic cardiomyopathy is challenging. Aim of this study is to assess the value of radiofrequency catheter ablation (RFCA) for the treatment of the VAs.
Methods: 15 patients (11 with ICD) with hypertrophic cardiomyopathy and multiple episodes of VAs resistant to medical therapy underwent RFCA with open irrigation catheter of the VAs. In all patients epicardial access was obtained. All patients were followed for at least one year after RFCA.
Results: Mean age was 56.7±14.2, and mean E.F. was 34.9±8.1. RFCA was performed endocardially in 9 pts and epicardially in 6 pts. 3 pts had recurrences after the first endocardial RFCA and were successfully ablated epicardially. At 20±9 months follow up, elimination of clinical VAs or reduction of VAs burden reached 90%. No major complication was observed during and after the procedures in all patients.
Conclusion: Catheter ablation of VAs in patients with Hypertrophic cardiomyopathy refractory to medical therapy is safe, feasible and successful in eliminating or reducing VAs burdens. Epicardial VA ablation should be considered as an important access option for the treatment of these patients to increase the success rate.