Wave Velocity-Dependent Pressure Method for Estimating the Ventricular Stroke Volume

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Abstract

A theoretical approach for estimating directional changes in the average wave velocity of the systematic vascular bed was found and applied to develop a reliable pressure contour method for determining the ventricular stroke volume following the administration of sympathomimetic agents. Two pressure methods in which the wave velocity was assumed either constant or variable were compared to the electromagnetic flowmeter technique for measuring stroke volume. The overall performance of both pressure methods was essentially the same over a wide range of physiologic conditions in five dogs. Statistical comparison of the pressure methods during interventions with epinephrine and metaraminol demonstrated a significant increase in accuracy when allowance for variations in the pulse wave velocity was made.

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Journal ID (publisher-id): CRD

Journal ID (nlm-ta): Cardiology

Journal ID (doi): 10.1159/issn.0008-6312

Title: Cardiology

Publisher: S. Karger AG

ISSN (Print): 0008-6312

ISSN (Electronic): 1421-9751

Publication date Subscription-year: 1974

Publication date (Print): 1974

Publication date (Electronic): 29 October 2008

Volume: 59

Issue: 5

Pages: 319-326

Affiliations

Department of Medicine, University of Mississippi Medical Center, Jackson, Miss.

Article

Publisher ID: 169681 Other ID: Cardiology 1974;59:319–326

DOI: 10.1159/000169681

PubMed ID: 4282349

SO-VID: 6ebb106b-5ff0-4fac-a0a7-13e7182a6708

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Wave Velocity-Dependent Pressure Method for Estimating the Ventricular Stroke Volume

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Karger: Cardiovascular System

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