Document Detail

Long-term results of radiofrequency catheter ablation in non-ischemic sustained ventricular tachycardia with underlying heart disease. Nonuniform arrhythmogenic substrate and mode of ablation.
MedLine Citation:
PMID:  8676545     Owner:  NLM     Status:  MEDLINE    
This study examined 12 VTs in 8 patients who underwent radiofrequency (RF) catheter ablation for ventricular tachycardia (VT) associated with non-ischemic underlying heart diseases, and who were followed-up for more than 24 months after ablation. The site of VT origin was determined to be within a narrow site (within 1.0 x 1.0 cm) in 5 VTs (4 patients), but VT originated from a wide origin (more than 1.0 x 1.0 cm) in the other 5 VTs (3 patients). The remaining patient had two macroreentrant VTs revolving around an anatomical obstacle in both the clockwise and counterclockwise directions. Two of 5 VTs originating from a narrow site were successfully ablated by 2-3 RF applications. In VT associated with a wide origin, two perpendicular linear RF lesions with 6.0 +/- 1.8 RF applications were required to ablate the VT. Eight of the 12 VTs (66.7%) were finally ablated by RF current (30-50 watts), and they did not recur during the follow-up period of 31.2 +/- 6.5 months. An excellent long-term outcome is expected, even in VT associated with non-ischemic underlying heart disease, if VT is successfully treated by RF ablation.
M Chinushi; Y Aizawa; K Ohhira; A Abe; A Shibata
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Japanese heart journal     Volume:  37     ISSN:  0021-4868     ISO Abbreviation:  Jpn Heart J     Publication Date:  1996 Mar 
Date Detail:
Created Date:  1996-08-14     Completed Date:  1996-08-14     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0401175     Medline TA:  Jpn Heart J     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  183-94     Citation Subset:  IM    
First Department of Internal Medicine, Niigata University School of Medicine, Japan.
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MeSH Terms
Cardiac Pacing, Artificial
Catheter Ablation*
Follow-Up Studies
Heart Conduction System / physiopathology,  surgery*
Heart Diseases / physiopathology*
Tachycardia, Ventricular / epidemiology,  physiopathology,  surgery*
Time Factors
Treatment Outcome

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

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