Document Detail

Delayed effects of radiofrequency energy on accessory atrioventricular connections.
MedLine Citation:
PMID:  7685879     Owner:  NLM     Status:  MEDLINE    
The purpose of this study was to determine the incidence and characteristics of delayed effects on conduction through accessory atrioventricular (AV) connections after apparently successful attempts at radiofrequency catheter ablation. Among 450 patients who had 471 accessory AV connections, the ablation procedure was unsuccessful in 26 patients (6%), as defined by persistent conduction through the accessory AV connection 60 minutes after the final application of radiofrequency energy. In 6/26 unsuccessfully treated patient (24%), conduction through the accessory AV connection disappeared on a delayed basis. At least once during the ablation procedure, conduction through each of these 6 accessory AV connections was transiently eliminated for 10 seconds to 60 minutes. Five of these accessory AV connections were left-sided and one was posteroseptal; one was concealed and five were manifest. Conduction through the accessory AV connection disappeared on a delayed basis 6-18 hours after the ablation procedure in 4 patients, and at some time between 1-5 days or 1-60 days in the other 2 patients. In 2 patients, the delayed effect was only transient, while in 4 patients, conduction through the accessory AV connections did not return during 5-23 months of follow-up. In conclusion, up to 15% of patients who undergo an apparently unsuccessful attempt at radiofrequency ablation of an accessory AV connection may later manifest a permanent loss of conduction through the accessory AV connection.
J J Langberg; S M Borganelli; S J Kalbfleisch; S A Strickberger; H Calkins; F Morady
Related Documents :
24251039 - Fatigue and sleep-disordered breathing in multiple sclerosis: a clinically relevant ass...
24681879 - Does the presence of obesity and/or metabolic syndrome affect the course of acute pancr...
23550839 - Clinical and biomarker assessment of demyelinating events suggesting multiple sclerosis.
6160519 - Preliminary studies with an implantable multimodal a-v pacemaker for reciprocating atri...
6331699 - Autonomic sinus node dysfunction and its treatment.
7090999 - Effect of isoproterenol on the anterograde refractory period of the accessory pathway i...
3410509 - Primary immunodeficiency diseases in children treated in the children's memorial hospit...
14965169 - Hairy cell leukemia: an autopsy study.
9747369 - Phagocytosis and oxidative burst by neutrophils in patients with recurrent furunculosis.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  16     ISSN:  0147-8389     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  1993 May 
Date Detail:
Created Date:  1993-07-22     Completed Date:  1993-07-22     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:  1001-5     Citation Subset:  IM    
University of Michigan Hospitals, Ann Arbor 48109-0022.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Catheter Ablation*
Heart Conduction System / abnormalities,  physiopathology,  surgery*
Middle Aged
Wolff-Parkinson-White Syndrome / physiopathology,  surgery

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

Previous Document:  Oncology of the hypertrophic prostate and study of the histogenesis of carcinoma. Histological analy...
Next Document:  Comparison in the same patient of aberrant conduction and bundle branch reentry after dofetilide, a ...