Machine perfusion strategies in liver transplantation

Area of Science:

• Hepatology and Transplant Surgery
• Biomedical Engineering

Background:

• Machine perfusion is an emerging technology in liver transplantation.
• Several novel perfusion strategies are under development.
• Clinical implementation requires evidence of improved liver function, reduced complications, and cost-effectiveness.

Purpose of the Study:

• To review current machine perfusion concepts for liver transplantation.
• To compare protective mechanisms of ex-situ and in-situ perfusion.
• To evaluate graft suitability, viability testing, and clinical trial outcomes.

Main Methods:

• Review of experimental and clinical studies on machine liver perfusion.
• Analysis of protective mechanisms in ex-situ and in-situ perfusion.
• Evaluation of data from recent clinical trials and outcome parameters.

Main Results:

• Current perfusion concepts and their differences are summarized.
• Graft types that may benefit most from perfusion are discussed.
• Liver viability testing and clinical trial endpoints are analyzed.

Conclusions:

• Machine perfusion technologies need further validation before widespread clinical adoption.
• Understanding limitations and optimizing outcome parameters are crucial for advancing the field.
• Evidence from clinical trials is essential to demonstrate the value of machine perfusion in liver transplantation.