Clinical Studies on Portal Hypertensive Hemodynamic Change in the Patients under Non-shunt Operation for Esophageal Varices

Abstract

Purpose of this study is to determine short term hemodynamic changes of portal vein following non-shunt operations in 6 patients with esophageal varices. Non-shunt operations were the Hassab's operation in 5, and transabdominal esophageal transection in I. We measured portal vein pressure and blood flow of the left and short gastric vein before and during the operations. A portal vein flow volume was measured before and after the operations using MRI in 2 patients. There was a parallelism between pressure of radial artery and that of portal vein. After ligation of splenic artery, blood flow of the left gastric vein was decreased, suggesting blood flow was hepatofugal in the left gastric vein. Portal vein pressure was maintained without any changes during this operation, while portal flow volume was decreased after operation. These observations suggest that non-shunt operations for esophageal varices induce a decrease in portal blood flow.