Document Detail

Exercise-induced second-degree atrioventricular block in endurance athletes.
MedLine Citation:
PMID:  23059863     Owner:  NLM     Status:  Publisher    
: Training induces volume- and time-dependent morphological and functional changes in the heart. Heart rhythm disorders, such as atrial arrhythmia (including atrial fibrillation and atrial flutter), are a well-established consequence of such long-term endurance practice. Although resting bradycardia and first-degree atrioventricular persist in veteran athletes, a higher conduction system impairment has never been reported neither at rest nor during exercise. We report here two cases of type II second degree atrioventricular block occuring during exercise in middle-aged well-trained athletes. Since animal and human studies suggest that a progressive myocardial fibrosis could explain such phenomenon, long-term training could also have consequences on the conduction pathways.
Stéphane Doutreleau; Cristina Pistea; Evelyne Lonsdorfer; Anne Charloux
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-10
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  -     ISSN:  1530-0315     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Service de Physiologie et d'Explorations Fonctionnelles, CHU de Strasbourg, Strasbourg, France.
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