J.Jpn. Surg. Soc.. 100(5): 335-341, 1999

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Feature topic

USEFULNESS AND PROBLEMS OF TOTAL HEPATIC VASCULAR EXCLUSION IN LIVER SURGERY

Total hepatic vascular exclusion (THVE) is an useful method enabling safe and sure hepatic resection in patients with liver tumors adjacent to the large hepatic veins or inferior vena cava (IVC), tumor thrombi, invasion of the IVC, etc. To avoid serious hypotension during THVE, test clamping of the IVC prior to the procedure is indispensable. Hemodynamics should be carefully maintained by blood transfusion and sufficient infusion of colloidal and electrolyte solutions during THVE. The veno-venous bypass method which shunts blood from the IVC and portal vein to the superior vena cava enables prolongation of the period of THVE and is useful to avoid postoperative renal dysfunction. In situ liver perfusion with cold solution during THVE is an additional modality by which the liver is protected from warm ischemic injury and the duration of THVE can be further prolonged. However, the maximum duration of THVE is still controversial, especially in patients with chronic liver damage. The most appropriate method for THVE should be carefully chosen in each case by considering the type of lesion, liver function, and the goal of the surgery.

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