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Article
May 1962

Occlusion of the Thoracic Aorta and Abdominal Vena CavaEffect on Hepatic Blood Flow and Splanchnic Metabolism

Author Affiliations

PHILADELPHIA
Department of Physiology, The Lankenau Hospital, and The Jefferson Medical College.; Present address: The University of California, Santa Barbara, Calif. (Dr. Horvath).

Arch Surg. 1962;84(5):504-510. doi:10.1001/archsurg.1962.01300230020005
Abstract

A number of investigators have been interested in the circulatory response consequent to total occlusion of the thoracic aorta1,2,5,13,19,30,32 and the inferior vena cava,7,8,14,17 as well as the effect of occluding both sites simultaneously.8,10 Despite the prominent role of the splanchnic circulation as it determines or reflects changes in the over-all metabolic and hemodynamic schema, few papers2,8,14 have dealt with the effect of these obstructions on the blood flow to this region. However, the splanchnic response to other alterations in the circulation has received a great deal of attention.9,12,22,24,34

The purpose of this investigation was to study the splanchnic response to the simultaneous occlusion of the thoracic aorta and the abdominal vena cava as it is related to the over-all response, with an emphasis on the metabolic changes consequent to the altered circulation.

Materials and Methods  Sixteen adult mongrel dogs ranging in weight from 13

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