PMID: 1188288Jul 1, 1975Paper

Cardiovascular and renal responses to acute cold exposure in water-loaded man.

Scandinavian Journal of Clinical and Laboratory Investigation
J H AtterhögL R Wallenberg

Abstract

Changes in oxygen uptake, cardiac output, heart rate, stroke volume, central blood volume, arteriovenous oxygen difference, aortic, pulmonary arterial, and right atrial blood pressure, systemic vascular resistance, hematocrit, circulating plasma volume, urine flow, fractional sodium excretion, and free water clearance were studied in eight healthy volunteers in stable water diuresis, exposed to cold by means of air at +15 degrees C and at a speed of 0.5 m/sec. A decrease in circulating plasma volume and systemic vascular resistance was found during cold stress. Mean aortic blood pressure, sodium excretion, cardiac output, oxygen uptake, arteriovenous oxygen difference, and hematocrit increased. No changes in urine flow or in clearance of free water could be demonstrated. Heart rate, stroke volume, and central blood volume showed significant increases in cold. The results are interpreted to suggest that exposure to cold raises the arterial blood pressure by an increase in cardiac output, thereby increasing capillary hydrostatic pressure in certain vascular areas, including the renal vascular bed. This negatively affects capillary reabsorption processes in the kidney, causing a reduction in tubular sodium reabsorption, thus givin...Continue Reading

Citations

Jan 1, 1978·Acta Anaesthesiologica Scandinavica·P O JärnbergP O Granberg
Sep 1, 1975·Acta Physiologica Scandinavica·L R Wallenberg
Nov 21, 2013·Journal of the Royal Army Medical Corps·Elise M Hindle, J D Henning
Apr 25, 2000·Metabolism: Clinical and Experimental·M R RicciK D Mittleman
May 23, 1998·Acta Physiologica Scandinavica·M BromanM Wolgast
Jan 1, 1990·Scandinavian Journal of Urology and Nephrology·S H Jacobson, H Lomberg
Apr 8, 2011·Cytometry. Part a : the Journal of the International Society for Analytical Cytology·Daniel GreyManja Kamprad

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