Hemodynamic and Hormonal Responses to the Sudden Interruption of Caval Flow: Insights from a Prospective Study of Hepatic Vascular Exclusion During Major Liver Resections

Abstract

Hemodynamic and hormonal responses to the acute interruption of caval venous return to the heart were investigated in patients undergoing liver resection with hepatic vascular exclusion. A compensatory role for arginine vasopressin and sympathetic systems that provoked increased vascular resistance was demonstrated.