Abstract
Long Term Results of Radio Frequency Ablation of Right Ventricular Outflow Tract Tachycardia
Highlights
Right Ventricular Outflow Tract (RVOT) tachycardia is frequently found in clinical practice
A retrospective cohort study conducted to subjects with RVOT tachycardia who underwent Radio frequency ablation (RFA) during period of 2005-2011
Clinical characteristics are revealed from medical record and electrophysiology characteristics are revealed from electrophysiology recording system (PruckaTMandWorkmateTM)
Summary
Right Ventricular Outflow Tract (RVOT) tachycardia is frequently found in clinical practice. Radio frequency ablation (RFA) is a recommended therapeutic option of RVOT tachycardia. A retrospective cohort study conducted to subjects with RVOT tachycardia who underwent RFA during period of 2005-2011. Patients that received pharmacological therapy act as control group. All patients are observed up to 1 year. Sixty two patients underwent RFA (mean age of 43,56 ± 11,77 year,[46] female). Based on ECG morphology, septal site are majority of cases. An acute successful rate of RFA is 79%.Long termsuccess rate is 83,9 % as compare to only 40,9% in medical therapy group(RRR 77%, p=0.001). Septal origin site is an independent factor of success of RFA RVOT tachycardia. RFA of RVOT tachycardia is safe and effective with better longterm result as compare to pharmacological therapy.
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