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Efficacy of radiofrequency catheter ablation for ventricular tachycardia in healed myocardial infarction
Journal article   Open access   Peer reviewed

Efficacy of radiofrequency catheter ablation for ventricular tachycardia in healed myocardial infarction

David J. Callans, Erica Zado, Brian H. Sarter, David Schwartzman, Charles D. Gottlieb, Francis E. Marchlinski and Daniel M Schwartzman
The American journal of cardiology, v 82(4), pp 429-432
1998
DOI: https://doi.org/10.1016/S0002-9149(98)00353-1
PMID: 9723628
Featured in Collection :   UN Sustainable Development Goals @ Drexel
url
https://doi.org/10.1016/s0002-9149(98)00353-1View
Published, Version of Record (VoR)CC BY-NC-ND V4.0,  Open
url
https://doi.org/10.1016/S0002-9149(98)00353-1View
Published, Version of Record (VoR) Open

Abstract

Radiofrequency catheter ablation has been useful in the treatment of ventricular tachycardia (VT) in selected patients with healed myocardial infarction. Previous studies have demonstrated success rates of 60% to 96% for targeted VT morphologies; however, these studies included patients only after they have had successful mapping procedures and have received radiofrequency lesions. All patients referred for VT ablation from July 1992 to November 1996 were included in this analysis on an intention-to-treat basis. Ninety-five procedures were performed in 66 patients for 77 distinct presentations with tolerated, sustained VT. Fifty-five procedures were successful (58%) and 40 procedures failed. Reasons for procedural failure included failed radiofrequency application despite adequate VT mapping (21 procedures), no tolerated VT induced (12), and aborted procedures due to complications or technical difficulties (7). Fifty-five patients (71%) eventually had a successful VT ablation, although 10 required >1 procedure. This analysis revealed factors that contribute to failure of VT ablation procedures in addition to inadequate mapping and lesion formation. Procedural difficulties, particularly the inability to induce tolerated VT, frequently prevent successful catheter ablation in patients who present with tolerated, sustained VT.

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54 citations in Web of Science
74 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Cardiac & Cardiovascular Systems
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