Document Detail


Left atrial dimensions determined by M-mode echocardiography in black and white older (> or =65 years) adults (The Cardiovascular Health Study).
MedLine Citation:
PMID:  12398966     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Stroke and atrial fibrillation are common and serious illnesses in the elderly, the risks of which are substantially increased by left atrial (LA) enlargement. Despite growing recognition of the importance of LA enlargement, the distribution and correlates of LA dimension in the elderly have not been well defined. A total of 3,882 women and men aged >65 years were studied. Increased LA dimension was independently associated with increased weight, mitral annular calcium, regional wall motion abnormalities, mitral early peak inflow velocity, and left ventricular (LV) fractional shortening. Increased LA dimension was negatively associated with aortic leaflet thickening. The relation with LV fractional shortening was curvilinear with a nadir at 35% to 40%. LA dimension in black men was approximately 1.9 mm less than in white men in multivariate analyses. Adjustment for spirometric lung volumes and chest dimensions appeared to diminish the race-LA dimension relation. Thus, LA dimension is strongly associated with weight and with several echocardiographic valvular abnormalities; its relation with LV fractional shortening is U-shaped with a nadir at the borderline of LV functional impairment.
Authors:
Teri A Manolio; John S Gottdiener; Teresa S M Tsang; Julius M Gardin;
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The American journal of cardiology     Volume:  90     ISSN:  0002-9149     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  2002 Nov 
Date Detail:
Created Date:  2002-10-25     Completed Date:  2002-12-09     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  983-7     Citation Subset:  AIM; IM    
Affiliation:
Division of Epidemiology and Clinical Applications, National Heart, Lung, and Blood Institute, Bethesda, Maryland 20892-7934, USA. manolio@nih.gov
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MeSH Terms
Descriptor/Qualifier:
African Continental Ancestry Group*
Age Factors
Aged
Blood Flow Velocity / physiology
Body Weight / physiology
Cardiovascular Diseases / physiopathology,  ultrasonography
Echocardiography*
Electrocardiography
European Continental Ancestry Group*
Evidence-Based Medicine
Female
Heart Atria / physiopathology,  ultrasonography*
Heart Ventricles / physiopathology,  ultrasonography
Humans
Male
Multivariate Analysis
Prospective Studies
Risk Factors
Statistics as Topic
Ventricular Function, Left / physiology
Grant Support
ID/Acronym/Agency:
HC-35129/HC/NHLBI NIH HHS; HC-85085/HC/NHLBI NIH HHS; HC-95103/HC/NHLBI NIH HHS; N01-HC-85079/HC/NHLBI NIH HHS

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