Document Detail

Estimation of stroke volume using Doppler echocardiography and left ventricular echocardiographic dimensions in infants and children.
MedLine Citation:
PMID:  3473899     Owner:  NLM     Status:  MEDLINE    
To evaluate the accuracy of noninvasive determination of stroke volume in infants and children, 28 patients (age range 4 weeks to 19 years) were studied. Stroke volume was calculated according to Teichholtz from M-mode echocardiographic tracings of left ventricular dimensions in 8 subjects. Agreement with thermodilution performed within 60 min of echocardiography was good (r = 0.995, y = 0.91x + 1.59, SEE = 1.8 ml). Since stroke volume correlated to body size we corrected for (height)3. After this correction there was still good agreement to thermodilution (r = 0.88, y = 1.29x-7.13, SEE = 7.1 ml/H3). M-mode echocardiography was then used as a reference method for evaluating two different Doppler methods in the remaining 20 subjects. Continuous wave Doppler stroke distance, calculated from the mean velocity, was combined with aortic root area (Method I), and stroke distance calculated from maximum velocity was combined with the aortic interleaflet area (Method II). Good agreement was found with Method I (r = 0.95, y = 1.01x-0.14, SEE = 8.1 ml) and Method II (r = 0.95, y = 1.04x-1.14, SEE = 8.4 ml). However, when stroke volume was normalized for (height)3, Method I was found to be superior to Method II.
K Caidahl; M Mellander; K G Sabel; B O Eriksson
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Acta paediatrica Scandinavica. Supplement     Volume:  329     ISSN:  0300-8843     ISO Abbreviation:  Acta Paediatr Scand Suppl     Publication Date:  1986  
Date Detail:
Created Date:  1987-07-20     Completed Date:  1987-07-20     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0173166     Medline TA:  Acta Paediatr Scand Suppl     Country:  SWEDEN    
Other Details:
Languages:  eng     Pagination:  114-9     Citation Subset:  IM    
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MeSH Terms
Cardiac Output
Child, Preschool
Echocardiography / methods*
Heart Defects, Congenital / physiopathology
Heart Ventricles / anatomy & histology
Stroke Volume*
Ventricular Function*

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