ISSN:
1432-2013
Keywords:
Venous Tone
;
Transmural Central Venous Pressure
;
Immersion
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary Peripheral venous tone, central venous and oesophageal pressures were recorded while the upright sitting subjects were immersed to the neck in a thermoneutral water bath. The central venous pressure rose from 3.4 to 15.2 mm Hg and the oesophageal pressure from −0.4 to +3.4 mm Hg. The transmural pressure, which determines the enddiastolic volume of the heart, increased by 8.0 mm Hg. Plethysmographic determinations of peripheral venous tone revealed a relaxation of the peripheral veins: after a quick initial decrease of the volume elasticity coefficient (E′15) from 16.6 to 13.5 mm Hg/ml/100 g tissue there is a continuous decline to 11.8 mm Hg/ml/100 g tissue after 3 hrs immersion. This relaxation persists for at least 1 hr after termination of immersion.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00590486
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