Hepatic reperfusion during liver transplantation remains a critical phase associated with significant hemodynamic and systemic disturbances, despite advances in surgical and anesthetic management. This phase is characterized by the release of acidotic, hypothermic, and hyperkalemic blood containing metabolic byproducts and inflammatory mediators resulting from ischemia-reperfusion injury. Clinically, reperfusion is associated with hemodynamic instability, including reductions in cardiac output and arterial pressure, as well as cardiac dysfunction and arrhythmias, often requiring pharmacologic support. These alterations may affect not only immediate intraoperative stability but also short- and long-term outcomes for both the patient and the graft. The abrupt restoration of blood flow to the transplanted liver leads to the systemic release of accumulated metabolites, reactive oxygen species, and inflammatory mediators, contributing to a systemic inflammatory response that may impact distant organs, including the kidneys and heart. Several revascularization strategies have been investigated to mitigate reperfusion-related injury: initial reperfusion via the portal vein, initial reperfusion through the hepatic artery, and simultaneous reperfusion through the portal vein and hepatic artery. A less frequently used and insufficiently studied strategy, not routinely or systematically implemented, involves diverting the initial reperfusion blood from the graft to the surgical field, followed by the restoration of hepatic blood outflow to the systemic circulation. This study hypothesizes that discarding the initial reperfusion blood via the infrahepatic vena cava will attenuate early hemodynamic, metabolic, and inflammatory changes and reduce postoperative complications compared to conventional reperfusion techniques.
Age range
18 Years
Sex
ALL
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Peak alanine aminotransferase (ALT)
Timeframe: Within 72 hours after transplantation