Document Detail

Radiofrequency ablation: a cure for tachyarrhythmias.
MedLine Citation:
PMID:  11265797     Owner:  NLM     Status:  MEDLINE    
Radiofrequency (RF) ablation is a new modality of pennanently curing patients with various tachycardias using radiofrequency energy, a technique evolved in the past decade. RF ablation was performed on 913 patients with different tachyarrhythmias from April, 1994 to July, 1999. There were 491 men and 422 females aged 42 +/- 34 years (range 1 to 76 years). Supraventricular tachycardia (SVT) was present in 462 patients, accessory pathway mediated atrioventricular re-entrant tachycardia (AVRT) in 355 patients (377 accessory pathways) and idiopathic ventricular tachycardia (VT) in 96 patients. Amongst the patients with SVT, 402 had atrioventricular nodal re-entrant tachycardia (AVNRT), 22 had atrial flutter, 20 had ectopic atrial tachycardia and 18 had atrial fibrillation. RF successfully abolished the tachycardia in 400/402 patients (99.5%) with AVNRT, 330/377 (87.5%) accessory pathways in patients with AVRT, 14/22 patients (63.6%) of atrial flutter, 18/20 patients (90%) of atrial tachycardia and 79/96 patients (82.3%) with idiopathicVT. Successful AV nodal ablation with pacemaker implantation was done in 10/18 patients with chronic atrial fibrillation with fast ventricular rate and tachycardia induced cardiomyopathy. AV nodal modulation for atrial fibrillation was tried in the remaining 8 patients and was successful in 4 (4/8). The overall success rate for all arrhythmias was 93.6%, and there was no mortality. At a follow-up of 6.8 +/- 5.4 months, there was a recurrence in 34/420 patients (8%), in whom successful re-ablation was performed. One patient with AVNRT and another with a parahisian pathway developed complete heart block and were given pacemakers. One patient developed inferior wall infarction on the next day post RF. There were 4 patients who had pericardial tamponade necessitating pericardiocentesis and 2 patients developed deep vein thrombosis, which was treated conservatively. Thus RF ablation is an effective, safe and curative therapy for various arrhythmias.
R Iyer; S Hameed; A M Vora; Y Lokhandwala
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the Indian Medical Association     Volume:  98     ISSN:  0019-5847     ISO Abbreviation:  J Indian Med Assoc     Publication Date:  2000 Nov 
Date Detail:
Created Date:  2001-03-26     Completed Date:  2001-05-24     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7505608     Medline TA:  J Indian Med Assoc     Country:  India    
Other Details:
Languages:  eng     Pagination:  684-7, 690     Citation Subset:  IM    
Department of Cardiology, KEM Hospital, Mumbai.
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MeSH Terms
Age Factors
Catheter Ablation / methods*
Child, Preschool
Follow-Up Studies
Middle Aged
Tachycardia / physiopathology,  surgery*
Treatment Outcome

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