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Intraoperative coronary venography was performed in 24 patients before and after portal-azygos disconnection for portal hypertension. Before the procedure the portal vein was found to be communicated with cardial and esophageal veins by two pathways, i,e., from the esophageal and gastric branches of the coronary vein to the esophageal varices, with the latter branches by way of the gastric intramural venula. The portal blood flow was postulated to be hepatofugal because the portal trunk could not be seen venographically. Coronary venography done after the disconnection revealed no pericardial and esophageal varices and the portal vein with hepatopetal blood flow. We conclude that the operation had the advantage of complete disconnection between the portal vein and the cardio-esophageal varices, thus preventing the bleeding from the varix and increasing hepatopetal blood flow.
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