Regional cardiac hemodynamics and oxygenation during isovolemic hemodilution in anesthetized pigs

E C van Woerkens, A Trouwborst, D J Duncker, P D Verdouw

Research output: Chapter/Conference proceedingChapterAcademic

5 Citations (Scopus)

Abstract

Hemodilution causes a drop in hematocrit, thereby lowering the oxygen carrying capacity of blood, necessitating an increase in flow or an augmented oxygen extraction by the tissues to meet their oxygen demands. Under normal conditions the myocardial oxygen extraction is already high and the capacity to increase is limited. In the heart the decrease in arterial oxygen content during hemodilution therefore is mainly compensated by an increase in coronary flow. This increase in flow can be achieved by both reduction of the blood viscosity and coronary vasodilatation. The hemodynamic changes during hemodilution may increase myocardial oxygen consumption and, therefore, an even greater increase in coronary flow might be needed.
Original languageEnglish
Title of host publicationOxygen Transport to Tissue XIV
EditorsWilhelm Erdmann, Duane F. Bruley
Pages545-52
Number of pages8
Volume317
Edition1st
ISBN (Electronic)978-1-4615-3428-0
DOIs
Publication statusPublished - 1992

Publication series

SeriesAdvances in experimental medicine and biology
Volume317
ISSN0065-2598

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