Document Detail


Successful radiofrequency current catheter ablation of sustained ventricular tachycardia.
MedLine Citation:
PMID:  1383957     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We performed radiofrequency current catheter ablation in two patients with nonischemic sustained ventricular tachycardia (VT). In one patient, two morphologically distinct VTs were induced by electrical stimulation. One showed right bundle branch block pattern and the other left bundle branch block pattern. The earliest site of activation during each VT was determined at the septum of the right ventricle. However, these two sites were close to the His-bundle electrogram recording area. In the other patient, a VT with a left bundle branch block pattern occurred spontaneously after the administration of isoproterenol. The earliest site of activation during VT was determined at the outflow tract of the right ventricle. During tachycardia, radiofrequency current ablation (40 W x 30 sec) was delivered to the earliest site of activation. A few seconds after fulguration, each VT was terminated and additional radiofrequency currents were given near these sites. After the ablation, VT could not be induced by the electrical stimulations, nor did it recur. No side effects were observed and the atrioventricular conduction remained intact. We feel that nonischemic VTs could possibly be treated by using radiofrequency current catheter ablation.
Authors:
M Chinushi; Y Aizawa; H Kuwano; H Hosono; H Kitazawa; Y Kusano; N Naitho; M Tamura; A Shibata
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  15     ISSN:  0147-8389     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  1992 Oct 
Date Detail:
Created Date:  1992-11-25     Completed Date:  1992-11-25     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1460-6     Citation Subset:  IM    
Affiliation:
First Department of Internal Medicine, Niigata University School of Medicine, Japan.
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MeSH Terms
Descriptor/Qualifier:
Aged
Cardiac Pacing, Artificial
Catheter Ablation*
Electrocardiography
Heart Conduction System / surgery*
Humans
Isoproterenol / diagnostic use
Male
Middle Aged
Tachycardia, Ventricular / diagnosis,  surgery*
Chemical
Reg. No./Substance:
7683-59-2/Isoproterenol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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