Document Detail


Recurrence of conduction in accessory atrioventricular connections after initially successful radiofrequency catheter ablation.
MedLine Citation:
PMID:  1593055     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of this study was to characterize the incidence and clinical features of accessory pathway recurrence after initially successful radiofrequency catheter ablation and to identify variables correlated with recurrence. Radiofrequency ablation was performed with a 7F deflectable tip catheter with a large (4 mm in length) distal electrode. Left-sided accessory pathways were approached through the left ventricle and right-sided pathways by way of the right atrium. Patients were included in the study if 1) they had an initially successful procedure, defined as the absence of accessory pathway conduction immediately after ablation, and 2) had undergone a 3-month follow-up electrophysiologic test or had documented recurrence of accessory pathway conduction. Accessory pathway conduction recurred after initially successful ablation in 16 (12%) of 130 patients. Almost half (7 of 16) of these recurrences were in the 1st 12 h after ablation, and the last occurred after 106 days. Return of delta waves on the electrocardiogram (ECG) or spontaneous paroxysmal supraventricular tachycardia was the initial indication of recurrence in 15 of the 16 patients. Two patients with manifest accessory pathways exhibited recurrence with exclusively concealed accessory pathway conduction. Accessory pathways ablated from the tricuspid anulus (right free wall or septal accessory pathways) had a much higher recurrence rate (24%) than did those on the mitral anulus (6%). Fourteen of 15 patients have had successful repeat accessory pathway ablation after the initial recurrence. After a mean follow-up period of 4 +/- 3 months, there have been no repeat recurrences of any of these accessory pathways. It is concluded that accessory pathway recurrence is infrequent after successful radiofrequency catheter ablation.(ABSTRACT TRUNCATED AT 250 WORDS)
Authors:
J J Langberg; H Calkins; Y N Kim; J Sousa; R el-Atassi; A Leon; M Borganelli; S J Kalbfleisch; F Morady
Related Documents :
12652255 - The dual pathway electrophysiology of the atrioventricular conduction. a new look at an...
19959125 - Cardiac ripple mapping: a novel three-dimensional visualization method for use with ele...
9641695 - New method for nonfluoroscopic endocardial mapping in humans: accuracy assessment and f...
12693505 - Site-selective atrial septal puncture.
17087655 - Analytical and clinical evaluation of a new heart-type fatty acid-binding protein autom...
2785875 - Risk factors for mortality after primary combined valvular and coronary artery surgery.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American College of Cardiology     Volume:  19     ISSN:  0735-1097     ISO Abbreviation:  J. Am. Coll. Cardiol.     Publication Date:  1992 Jun 
Date Detail:
Created Date:  1992-06-26     Completed Date:  1992-06-26     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8301365     Medline TA:  J Am Coll Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1588-92     Citation Subset:  AIM; IM    
Affiliation:
Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor 48109-0022.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Cardiac Pacing, Artificial
Electrocardiography
Electrocoagulation*
Female
Follow-Up Studies
Heart Conduction System / physiopathology,  surgery*
Humans
Incidence
Male
Radio Waves
Recurrence
Tachycardia, Supraventricular / epidemiology,  physiopathology,  surgery*
Time Factors

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


Previous Document:  Comparison of the cost of radiofrequency catheter modification of the atrioventricular node and medi...
Next Document:  Long-term clinical and angiographic follow-up of patients treated with the self-expanding coronary s...