Author + information
- F. Ozcan,
- D. Aras,
- S. Cay,
- O. Ozeke,
- M. Kara and
- S. Topaloglu
In this study we sought results of contact force sensing (CFS) catheters in Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy (ARVD/C).
We included 17 ARVD/C patients, five of whom have premature ventricular contractions (PVC) and the rest admitted with ventricular tachycardia (VT) storm. We divided patients into two groups as PVC and VT groups. Endo/epicardial ablation preferred for VT group. irrigated CFS catheters (Smart Touch, Biosense Webster, Inc) were used for all procedures.
Mean age left ventricular ejection fraction of patients in PVC group (2 male) was 34.6±12.8 and 40.4±12.1%. Mean ratio of PVC in 24 hour Holter monitor was 31.8±7.6%. Mean area of bipolar low voltage and scar were 17.4±8.4 and 10.2±5.4cm2, respectively. Mean contact force in right ventricle was 13±1.2 grams. The mean follow-up duration was 15±3.1 months for PVC group. All PVC morphologies could not be eradicated in two patients but total percentage of PVC were found to be reduced significantly in those patients. Mean age left ventricular ejection fraction of patients in VT group was 36.6±6.3 (7 male,) and 55.5±9.6%. All VT patients had ICD and admitted with electrical storm All patients in VT group underwent endo-epicardial ablation but one. Low bipolar voltage area was found less in endocardium than epicardium (112.6±44.7 cm2 versus 257.5±144.4 cm2). Mean contact force for endocardium and epicardium were 12.5±1.2 and 12.5±4.6 grams. All clinical and non-clinical VT’s were ablated successfully except two patient who had still non-clinical VTs. No complication occurred. The mean follow-up duration was 15.5±4.5 months. None of the VT patients experienced electrical storm or death. Two patients had single shock one patient had two shocks during follow-up. No complication occurred.
Endo/epicardial ablation of ventricular arrhythmias with CFS catheters in ARVD/C seems safe and effective.