Orthotopic liver transplantation with preservation of portocaval flow compared with venovenous bypass

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Abstract

Conventional liver transplantation requires cross-clamping of the hepatic pedicle and inferior vena cava, leading to severe hemodynamic and metabolic disturbances, usually attenuated by the use of venovenous bypass. A more recent surgical technique, piggyback with temporary portocaval shunting, preserves both caval and portal blood flows. The aim of this study was to compare the two methods prospectively. Forty-four patients with chronic liver disease were studied. Local anatomic conditions guided the surgeon to choose the easiest way to remove the native liver. Anesthetic management was standardized. Hemodynamic and metabolic changes were assessed by use of routine tests at specific periods. Graft function was evaluated by measurement of aminotransferases and monoethylglycinexylidide (MEGX) test 12, 24, 48, and 72 hours postoperatively. Conventional liver transplantation with venovenous bypass was performed in 26 patients, and the piggyback with temporary portocaval shunting was performed in 15 patients. ANOVA showed that cardiac output and systemic oxygen delivery were better maintained before revascularization in the piggyback group. Metabolic changes were comparable, and hyperfibrinolytic activity was detected in both groups. Graft function was comparable and satisfactory within the 3 first postoperative days. Piggyback with temporary portocaval shunting provided better intraoperative hemodynamics and tissue oxygenation than liver transplantation with venovenous bypass.

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CITATION STYLE

APA

Steib, A., Saada, A., Clever, B., Lehmann, C., Freys, G., Levy, S., & Boudjema, K. (1997). Orthotopic liver transplantation with preservation of portocaval flow compared with venovenous bypass. Liver Transplantation and Surgery, 3(5), 518–525. https://doi.org/10.1002/lt.500030507

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