Document Detail

Relation of race to electrocardiographic patterns in elite American football players.
MedLine Citation:
PMID:  18534272     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: The purpose of this study was to establish an electrocardiographic (ECG) profile in a biracial population of highly-trained American football players. BACKGROUND: Intense physical training can induce cardiac structural and functional changes ("athlete's heart"), including 12-lead ECG alterations. That race might play a role in determining ECG patterns has been suggested, although not studied in a large athletic population comparing black and white athletes. METHODS: Electrocardiographic analysis of 1,959 elite male athletes attending the National Football League Invitational Camp from 2000 to 2005 was performed. Subjects were classified by race and player position and judged free of structural heart disease. RESULTS: Abnormal ECG patterns were present in 480 (25%) athletes and were significantly more common among black players (n = 396; 30%) compared with white players (n = 78; 13%) or other races (n = 6; 15%) (p < 0.0001). Distinctly abnormal ECG patterns, suggestive of cardiac disease, were also more common in blacks (n = 76; 6%) than whites (n = 11; 2%) (p = 0.0005). In multivariable analysis, black race was an independent predictor of abnormal ECGs (risk ratio [RR] 2.03, 95% confidence interval [CI] 1.56 to 2.64, p < 0.0001), including patterns judged distinctly abnormal (RR 2.59, 95% CI 1.18 to 5.67, p = 0.02). Abnormal ECGs were also related to player position: most frequent in wide receivers (n = 91; 35%) and least common in quarterbacks (n = 16; 14%) and place kickers (n = 8; 11%). Echocardiograms, obtained in 203 athletes (10%), did not show structural cardiac abnormalities. CONCLUSIONS: Electrocardiographic abnormalities were 2-fold more common in black than in white highly-trained male American football players, with race an independent determinant of ECG pattern. These findings have important implications for pre-participation cardiovascular screening of athletes with ECGs.
Anthony Magalski; Barry J Maron; Michael L Main; Marcia McCoy; Angela Florez; Kimberly J Reid; Harold W Epps; John Bates; Jon E Browne
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of the American College of Cardiology     Volume:  51     ISSN:  1558-3597     ISO Abbreviation:  J. Am. Coll. Cardiol.     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-06-06     Completed Date:  2008-07-03     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8301365     Medline TA:  J Am Coll Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2250-5     Citation Subset:  AIM; IM    
Cardiovascular Consultants PA, Mid-America Heart Institute, Kansas City, Missouri 64111, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
African Americans*
Cardiovascular Physiological Phenomena*
European Continental Ancestry Group*
Heart Rate*
Odds Ratio
United States
Comment In:
J Am Coll Cardiol. 2008 Jun 10;51(23):2263-5   [PMID:  18534274 ]

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

Previous Document:  Supraventricular tachycardia after orthotopic cardiac transplantation.
Next Document:  Ethnic differences in left ventricular remodeling in highly-trained athletes relevance to differenti...