Ante Situm Liver Resection for Tumors Invading the Inferior Vena Cava Hepatic Vein Confluence.

The ante situm technique represents a safe surgical option for complex liver resection for malignancy involving the cavo-hepatic venous confluence. Compared with the ex situ liver resection, this technique allows liver remnant outflow reconstruction to be performed while the liver is cold perfused within the abdominal cavity with an intact hepatic pedicle.