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Portal Venous Hemodynamic Changes After Hepatectomy

2014-07-23 21:10:02 | BioPortfolio

Summary

The aim of this study is to investigate the pathophysiological mechanisms underlying the formation of posthepatectomy ascites with a focus on the significance of changes in portal venous hemodynamics after hepatic resection. By evaluation of other factors that may be involved in the formation of ascites this study may help to show to what extent the increase of portal venous pressure contributes to ascites formation. Detailed knowledge about pathogenetic factors concerning the formation of postoperative ascites might help preventing protracted hospital stay and further inconveniences to the patient.

Description

The mechanisms underlying the development of large-volume ascites after hepatectomy remain poorly understood. While studies on animal models suggest an increase of portal venous pressure after hepatectomy that may in turn favor the transudation of fluid into the peritoneal cavity further factors may be critically involved in the postoperative formation of ascites. These factors may include a drop in serum protein levels (and colloid osmotic pressure), a transient impairment in renal function and a surgery-induced capillary leakage. However, a better knowledge of the pathophysiology represents the prerequisite for efficient treatment.

In the present study the impact of changes in hepatic hemodynamics after hepatectomy on development of ascites will be investigated. Enrolled patients will receive measurement of portal venous flow and pressure as well as hepatic artery flow before and after hepatic resection. Associations of changes in these parameters with development of postoperative ascites and further postoperative complications will be evaluated.

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Conditions

Ascites

Intervention

Portal venous pressure, Portal venous flow, Hepatic artery flow

Location

Department of General, Visceral and Transplantation Surgery
Heidelberg
Germany
69120

Status

Enrolling by invitation

Source

University of Heidelberg

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T21:10:02-0400

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The venous pressure measured in the PORTAL VEIN.

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Impaired venous blood flow or venous return (venous stasis), usually caused by inadequate venous valves. Venous insufficiency often occurs in the legs, and is associated with EDEMA and sometimes with VENOUS STASIS ULCERS at the ankle.

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