| Left atrial volume index in highly trained athletes. | |
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MedLine Citation:
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PMID: 20569734 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Increase of left atrial (LA) diameter in trained athletes has been regarded as another component of the "athlete's heart". AIMS: To evaluate the possible impact of competitive training on LA volume and to define reference values of LA volume index in athletes. METHODS AND RESULTS: Six hundred fifteen consecutive elite athletes (370 endurance- [ATE] vs 245 strength-trained athletes [ATS]; 385 men; 28.4 +/- 10.2 years, range 18-40 years) underwent a comprehensive transthoracic echocardiography exam. LA maximal volume was measured at the point of mitral valve opening using the biplane area-length method, and corrected for body surface area. LA mild dilatation was defined as a LA volume index between 29 and 33 mL/m(2), while a moderate dilatation was identified by a LA volume index > or =34 mL/m(2). Left ventricular (LV) mass index and ejection fraction did not significantly differ between the 2 groups. Conversely, ATS showed increased body surface area, sum of wall thickness (septum + LV posterior wall), LV circumferential end-systolic stress (ESSc) and relative wall thickness, whereas LA volume index, LV stroke volume and LV end-diastolic volume were greater in ATE. The range of LA volume index was 26 to 36 mL/m(2) (mean 28.2 +/- 9.2) in men and 22 to 33 mL/m(2) (mean 26.5 +/- 7.2) in women (P < .01). LA volume index was mildly enlarged in 150 athletes (24.3%) and moderately enlarged only in 20, all males (3.2%). Mild mitral regurgitation was observed in 64 athletes (10.3%). LA volume index was significantly greater in ATE (P < .01). By multivariate analysis, the overall population type (P < .01) and duration (P < .01) of training and LV end-diastolic volume (P < .001) were the only independent predictors of LA volume index. CONCLUSIONS: In a large population of highly trained athletes, a mild enlargement of LA volume index was relatively common and may be regarded as a physiologic adaptation to exercise conditioning. |
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Authors:
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Antonello D'Andrea; Lucia Riegler; Rosangela Cocchia; Raffaella Scarafile; Gemma Salerno; Rita Gravino; Enrica Golia; Olga Vriz; Rodolfo Citro; Giuseppe Limongelli; Paolo Calabrò; Giovanni Di Salvo; Pio Caso; Maria Giovanna Russo; Eduardo Bossone; Raffaele Calabrò |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: American heart journal Volume: 159 ISSN: 1097-6744 ISO Abbreviation: Am. Heart J. Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-06-23 Completed Date: 2010-07-15 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0370465 Medline TA: Am Heart J Country: United States |
Other Details:
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Languages: eng Pagination: 1155-61 Citation Subset: AIM; IM |
Copyright Information:
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Copyright 2010 Mosby, Inc. All rights reserved. |
Affiliation:
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Second University of Naples, Naples, Italy. antonellodandrea@libero.it |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adaptation, Physiological
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physiology* Adolescent Adult Athletes* Athletic Performance / physiology* Atrial Function, Left / physiology* Cardiac Volume / physiology* Echocardiography Female Heart Atria / ultrasonography* Humans Male Reference Values Young Adult |
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