Mesenteric arterioportal shunt after hepatic artery interruption

Area of Science:

• Hepatobiliary surgery
• Vascular surgery
• Surgical oncology

Background:

• Massive hepatic necrosis is a risk following hepatic artery interruption in extended pancreatobiliary operations.
• Liver failure can be a severe complication of such procedures.

Purpose of the Study:

• To evaluate the effectiveness of a mesenteric arterioportal shunt in preventing liver failure.
• To assess the clinical outcomes of patients who received a mesenteric arterioportal shunt after hepatic artery interruption.

Main Methods:

• Retrospective analysis of clinical and hemodynamic data.
• Six patients undergoing pancreatic or hepatic resection for pancreatobiliary carcinoma received a mesenteric arterioportal shunt.
• Patients were classified based on hepatic artery status: postoperative occlusion or main artery excision without reconstruction.

Main Results:

• Four of the six patients (one in group A, three in group B) demonstrated good shunt patency and favorable clinical courses.
• One patient experienced fatal hepatic necrosis despite a presumed patent shunt due to inadequate portal flow.
• Another patient in group A had shunt occlusion confirmed by angiography.

Conclusions:

• A mesenteric arterioportal shunt is a beneficial intervention for preventing liver failure when massive hepatic necrosis is expected or has occurred after main hepatic artery interruption.
• Advantages include appropriate artery selection, a site away from the primary operative field, and straightforward shunt closure via transarterial embolization.