SAFETY AND EFFICACY OUTCOME OF A SINGLE-CENTRE VENTRICULAR TACHYCARDIA 24/7 ABLATION PROGRAM
L. Teischinger, C.A. Plass, H. Mayr, B. Frey
3.Medizinische Abteilung, Landesklinikum St. Pölten, St. Pölten, Austria Karl Landsteiner Institut zur Erforschung ischämischer Herzerkrankungen und Rhythmologie, St. Pölten, Austria Klinik f. Innere Medizin II, Medizinische Universität Wien, Vienna, Austria
Introduction: : The purpose of our study was to assess safety and feasibility of a single centre 24/7 VT ablation program.
Methods: 46 patients with a previously documented VT who underwent mapping and ablation from 10/2009 to 12/2012 were analysed retrospectively.
Results: Indications for ablation were electrical storm in 34.1%, appropriate shocks on ICD in 27.3%, recurrent slow VT below ICD therapy threshold in 11.4% and clinical VT in patients without ICD in 27.3%. In 10 patients ablation was not attempted due to not inducible VT in the absence of an endocardial substrate. Procedural success was achieved in 35 of 36 patients (97.2%). A procedure related complication occurred in 3 patients. The 30-day mortality was 2.9%, 2 additional patients died within 1 year. During 3-34 months follow-up, VT recurred in 10 patients and was terminated by ATP in 7, by amiodarone in 1 and by shock on ICD in 1 patient. Fatal slow VT recurred in 1 patient.
Conclusions: VT ablation is a safe and effective intervention, even in patients in extremis. Recurrence rate of electrical storm, ICD discharge as well as the need for consecutive ICD implantation is low.
