Problematic vascular reconstruction in liver transplantation. Part I. Arterial

Area of Science:

• Vascular Surgery
• Transplantation Surgery
• Hepatobiliary Surgery

Background:

• Adequate arterial inflow is critical for liver graft success following transplantation.
• Recipient celiac artery unsuitability necessitates alternative arterial reconstruction methods.
• Arterial conduits from the aorta or iliac artery serve as a viable option.

Purpose of the Study:

• To evaluate the safety and efficacy of arterial conduits in liver transplantation when standard reconstruction is not feasible.
• To compare outcomes between patients receiving arterial conduits and those undergoing standard arterial reconstruction.
• To analyze the impact of conduit placement (retropancreatic vs. antepancreatic) on patient outcomes.

Main Methods:

• Retrospective review of 32 patients requiring arterial conduits for liver transplantation.
• Comparison with a matched control group undergoing standard donor celiac to recipient celiac artery anastomosis.
• Analysis of intraoperative vascular flow, postoperative liver function, rejection rates, morbidity, and mortality.

Main Results:

• No significant differences were observed in intraoperative flow, postoperative liver function, or rejection rates between the groups.
• The arterial conduit group experienced a higher mortality rate, with two deaths linked to the retropancreatic technique.
• Antepancreatic conduit placement showed no associated morbidity or mortality.

Conclusions:

• Arterial conduits, particularly when placed antepancreatically, are safe and effective for liver transplantation when indicated.
• The antepancreatic conduit technique should be considered without reservation in cases of recipient celiac artery unsuitability.
• Careful consideration of conduit placement is essential to optimize patient outcomes in liver transplantation.