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Concept
Hepatectomy
Summary
Hepatectomy is the surgical resection (removal of all or part) of the liver. While the term is often employed for the removal of the liver from a liver transplant donor, this article will focus on partial resections of hepatic tissue and hepatoportoenterostomy.
The first hepatectomies were reported by Dr. Ichio Honjo (1913–1987) of (Kyoto University) in 1949, and Dr. Jean-Louis Lortat-Jacob (1908–1992) of France in 1952. In the latter case, the patient was a 58-year-old woman diagnosed with colorectal cancer which had metastasized to the liver.
Most hepatectomies are performed for the treatment of hepatic neoplasms, both benign or malign. Benign neoplasms include hepatocellular adenoma, hepatic hemangioma and focal nodular hyperplasia. The most common malignant neoplasms (cancers) of the liver are metastases; those arising from colorectal cancer are among the most common, and the most amenable to surgical resection. The most common primary malignant tumour of the liver is the hepatocellular carcinoma. Another primary malignant liver tumor is the cholangiocarcinoma. Hepatectomy may also be the procedure of choice to treat intrahepatic gallstones or parasitic cysts of the liver. Partial hepatectomies are also performed to remove a portion of a liver from a living donor for transplantation.
A hepatectomy is considered a major surgical procedure performed under general anesthesia. Access is accomplished by laparotomy, historically by a bilateral subcostal ("chevron") incision, possibly with midline extension (Calne or "Mercedes-Benz" incision). Nowadays a broadly used approach for open liver resections is the J incision, consisting in a right subcostal incision with midline extension. The anterior approach, one of the most innovative, is made simpler by the liver hanging maneuver.
In most recent years the minimal invasive approach, consisting in laparoscopic and then robotic surgery, has become increasingly common in liver resective surgery.
Hepatectomies may be anatomic, i.e.
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