title: Outcome of Radiofrequency Catheter Ablation as a non-pharmacological therapy for idiopathic Ventricular Tachycardia.
abstract: OBJECTIVE
  To determine the outcome of Radiofrequency Catheter Ablation (RFCA) as a non-pharmacological curative therapy for idiopathic Ventricular Tachycardia (VT) and to identify procedure-related complications.
  
  
  METHODS
  Descriptive study.
  
  
  METHODS
  The Armed Forces Institute of Cardiology and National Institute of Heart Diseases, Rawalpindi, from February 2001 to October 2008.
  
  
  METHODS
  Ninety eight consecutive patients with idiopathic VT, resistant to drug therapy, who underwent Electrophysiology Studies (EPS) radiofrequency catheter ablation were enrolled. Clinical and electrophysiological variables were recorded and a descriptive analysis was done.
  
  
  RESULTS
  Out of the 98 patients, 79 were males (80.6%). The mean age was 33.29+11.93 years. Modes of presentation were sustained VT, Repetitive Monomorphic VT (RMVT), Non-sustained VT (NSVT) and Ventricular Premature Beats (VPBs). Right Ventricular Outflow Tract (RVOT) VT was found in 37 patients, 37 had Idiopathic Left Ventricular Tachycardia (ILVT), 20 had Left Ventricular Outflow Tract (LVOT) VT, and Inflow Right Ventricular Tachycardia (IRVT) was found in 7 patients. Other sites of origin of VT were infrequent. Eight patients had dual morphologies of VT. Atrioventricular Nodal Re-entry Tachycardia (AVNRT) was found in 8 patients. RFCA was successful in abolishing inducible VT in 88 patients. One patient developed complete AV block requiring a permanent pacemaker.
  
  
  CONCLUSIONS
  Results of this study confirm a high degree of success and safety of radiofrequency catheter ablation as curative therapy for idiopathic ventricular tachycardia.
authors.affiliation: Department of Cardiology, Armed Forces Institute of Cardiology/National Institute of Heart Diseases, Rawalpindi. naseersamore@gmail.com
authors.forename: Naseer Ahmed
authors.initials: NA
authors.lastname: Samore
authors.forename: Syed Muhammad
authors.initials: SM
authors.lastname: Imran Majeed
authors.forename: Azhar Mahmud
authors.initials: AM
authors.lastname: Kayani
authors.forename: Muhammad Asif
authors.initials: MA
authors.lastname: Bhalli
authors.forename: Muhammad
authors.initials: M
authors.lastname: Shabbir
mesh_terms: D000328:Adult; D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use; D017115:Catheter Ablation; D004594:Electrophysiology; D005260:Female; D006801:Humans; D008297:Male; D011446:Prospective Studies; D012850:Sinus of Valsalva; D017180:Tachycardia, Ventricular / Q000175:diagnosis / Q000188:drug therapy / Q000628:therapy*; D016896:Treatment Outcome
chemical_list: D000889:Anti-Arrhythmia Agents