Continuous wave Doppler cardiac output: use in pediatric patients receiving inotropic support.

Continuous wave Doppler cardiac output: use in pediatric patients receiving inotropic support. Research Abstract Details 

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Continuous wave Doppler cardiac output: use in pediatric patients receiving inotropic support. Abstract Text:

W R Morrow,D J Murphy,D J Fisher,J C Huhta,L S Jefferson,E O Smith,

Doppler estimates of cardiac output have been shown to correlate closely with invasive measurement of cardiac output in hemodynamically stable adults and children. However, this method has not been validated in hemodynamically unstable pediatric patients. To assess the accuracy of continuous wave Doppler echocardiography in pediatric patients with unstable hemodynamics, we performed 27 simultaneous Doppler and thermodilution comparisons in 12 pediatric patients receiving inotropic support and afterload-reducing agents. Doppler cardiac output was calculated using aortic diameter measured from long-axis two-dimensional echocardiograms at three different sites: the aortic valve anulus, the aortic root at the sinuses of Valsalva, and the ascending aorta. For all measurements, there was a close correlation between Doppler and thermodilution techniques. However the site of measurement of aortic diameter had a significant impact on the strength on the correlation and the variability between Doppler and thermodilution. The best correlation and least variability were obtained using the aortic valve anulus diameter (r = 0.94). On serial determinations, percent change in Doppler stroke volume correlated well with thermodilution stroke volume (r = 0.87) and was useful in detecting both direction and magnitude of change in thermodilution stroke volume. Despite the administration of positive inotropic and afterload-reducing agents, Doppler cardiac output is a useful method for estimating cardiac output in hemodynamically unstable pediatric patients.

Continuous wave Doppler cardiac output: use in pediatric patients receiving inotropic support. Publishing Authors By Initials

WR Morrow,DJ Murphy,DJ Fisher,JC Huhta,LS Jefferson,EO Smith,

For similar investigative techniques: indicator dilution techniques: thermodilution research abstracts see: investigative techniques: indicator dilution techniques: thermodilution research

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Continuous wave Doppler cardiac output: use in pediatric patients receiving inotropic support. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Pediatric cardiology

VOLUME: 9

Page Numbers: 131-6

Journal Abbreviation: Pediatr Cardiol

ISSN: 0172-0643

DAY: 20

MONTH: 02

YEAR: 1988

Continuous wave Doppler cardiac output: use in pediatric patients receiving inotropic support. Information

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LANGUAGE: eng

NlmUniqueID: 8003849

Continuous wave Doppler cardiac output: use in pediatric patients receiving inotropic support. Keywords Mesh Terms:

KEYWORDS: Thermodilution

MESH TERMS: therapeutic use

Chemical & Substance for Abstract: Continuous wave Doppler cardiac output: use in pediatric patients receiving inotropic support. Information

Substance Name: Nitroglycerin

Registry Number: 55-63-0

Grant and Affiliation Information for Continuous wave Doppler cardiac output: use in pediatric patients receiving inotropic support.

AFFILIATION: Little Frank Abercrombie Section of Cardiology, Baylor College of Medicine, Houston, Texas.

Country: UNITED STATES

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MEDLINETA: Pediatr Cardiol

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