The surgical trauma of hilar cholangiocarcinoma is large, and there are many postoperative complications, which can directly lead to death in severe cases. The main complications are as follows: 1. After the operation of hilar cholangiocarcinoma, it is easy to cause bile-intestinal anastomotic bleeding, resulting in active abdominal bleeding, and the drainage blood is more than 2 ml/h. After this blood appears, stop bleeding immediately. 2. The most common postoperative complication of hilar cholangiocarcinoma is that the bile duct in the liver wound is not handled properly after hepatectomy or the bile duct in the liver is anastomosed with jejunum respectively, and bile leakage is reduced; Or at the place where the hepatic drainage tube penetrates the surface of the liver. 3. Patients with poor liver reserve function show signs of liver function deterioration, such as jaundice aggravation, irritability and lethargy, which may even lead to infection and death. 4. Acute renal failure is secondary to severe jaundice. It is characterized by spontaneous oliguria or anuria, azotemia, diluted hyponatremia and hyponatremia.

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