ISSN:
1432-2013
Keywords:
Immersion
;
Effective circulatory
;
Compliance
;
Posture
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract The effective compliance is defined as the relation of change in blood volume to change in central venous pressure. It was measured in 8 upright sitting male subjects and amounted to 3.3 ml/(mm Hg×kg BW). It is, therefore, by about 50% greater than the effective compliance in the supine subject which amounts to 2.3 ml/(mm Hg×kg BW). This difference is probably due to the posture dependent blood volume distribution in the low pressure system whose “upper” and “lower” sections have nonlinear pressure-volume characteristics. Immersion to the neck reduces the effective compliance to about half the control value (1.9 ml/(mm Hg×kg BW) which probably constitutes the effective compliance of the intrathoracic circulatory compartment.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00581291
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