Document Detail

Normal left atrial function determined by 2-dimensional echocardiography.
MedLine Citation:
PMID:  6823848     Owner:  NLM     Status:  MEDLINE    
To obtain normal values for left atrial function noninvasively, volumes of the left atrium and ventricle were calculated in 52 volunteers by 2-dimensional echocardiography. A light pen digitizing and computation system, controlled by a microprocessor, was used to outline the left atrium and ventricle in orthogonal apical views. Then, to calculate end-systolic and end-diastolic atrial and ventricular volumes, a modified Simpson's rule formula was used. End-systolic left atrial volume (mean +/- standard deviation) was 37 +/- 11.7 ml or 21 +/- 6.6 ml/m2. The change in left atrial volume from end-systole to end-diastole was 24 +/- 7.6 ml or 13.5 +/- 4.3 ml/m2, which represented 37 +/- 12.9% of left ventricular stroke volume. The mean fractional emptying of the left atrium was 65 +/- 8.9% and the conduit volume was 41 +/- 14.0 ml or 23 +/- 7.9 ml/m2. These values are similar to those reported in studies in which left atrial function was calculated from contrast angiography.
J Gutman; Y S Wang; D Wahr; N B Schiller
Related Documents :
2289908 - Estimation of left-ventricular systolic performance and its determinants in man from pr...
7448858 - Quantitative radionuclide angiocardiography.
7355738 - Nongeometric determination of left ventricular volumes from equilibrium blood pool scans.
8843118 - Reproducibility of left ventricular volume measurements at rest and during bicycle exer...
848618 - Motivational interventions in community hypertension screening.
17686798 - Neonatal volume guarantee ventilation: effects of spontaneous breathing, triggered and ...
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The American journal of cardiology     Volume:  51     ISSN:  0002-9149     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  1983 Jan 
Date Detail:
Created Date:  1983-03-11     Completed Date:  1983-03-11     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  336-40     Citation Subset:  AIM; IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Atrial Function*
Cardiac Volume
Middle Aged
Myocardial Contraction
Reference Values
Stroke Volume
Grant Support

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

Previous Document:  Assessment of the cardiac effects of hemodialysis with systolic time intervals and echocardiography.
Next Document:  Mechanisms for decreased exercise capacity after bed rest in normal middle-aged men.