CPT® Code 47141

The procedure described by CPT® Code 47141 refers to a donor hepatectomy, specifically a total left lobectomy, which involves the surgical removal of the left lateral segment of the liver from a living donor. This procedure is performed to obtain liver tissue for transplantation, where the removed segment is preserved using cold preservation techniques to maintain its viability until it can be transplanted into a recipient. The left lateral segment comprises segments II, III, and IV of the liver, which are critical for the function of the organ. The surgical approach typically involves a midline incision that extends from the substernal notch down to the pubis, although an upper midline approach may also be utilized depending on the surgeon's preference and the specific circumstances of the donor's anatomy. During the operation, the liver is carefully exposed and inspected to assess its condition. The left lateral segment is mobilized by cutting through several ligaments, including the left triangular, left coronary, and falciform ligaments, which support the liver. Once mobilized, the segment is displaced downward to allow access to the porta hepatis, where important vascular structures are located. The surgeon meticulously dissects and occludes the tributaries of the left branch of the portal vein, the left hepatic duct, and the left branch of the hepatic artery to ensure that the segment can be safely removed without compromising the donor's remaining liver function. The liver parenchyma is then separated down to the level of the hepatic vein, which is double ligated and transected to complete the removal of the segment. After excision, the liver segment is perfused with a cold preservation solution to prepare it for transplantation. The donor's surgical site is managed by controlling any bleeding, irrigating the wound, and closing it around drains to facilitate recovery. This procedure is critical in the context of living donor liver transplantation, where the health and safety of the donor are paramount.