[Iatrogenic lesion of the hepatic artery in the course of pancreatic surgery].

Abstract

The authors report a case of operative injury of the hepatic artery during a total spleno-pancreasectomy procedure for a mixed-type intraductal papillary mucinous neoplasm. During the preparation of the structures of the hepatic pedicle, a "true" hepatic artery was not identified, but only a small arterial vessel measuring about 2 mm in diameter, just in front of the portal vein, apparently emerging from the parenchyma of the pancreatic head. To obtain complete mobilisation of the duodeno-pancreatic block from the portal vein, it was necessary to cut this small arterial vessel. In the postoperative period, the patient developed extensive liver ischaemia, which was gradually resolved, but resulted in multiple stenosis of the intra- and extra-hepatic biliary tree. At follow-up at three years, the patient was in fairly good condition, with a permanent percutaneous biliary drainage, but with no clinical or radiological signs of local or distant disease. Although interruption of hepatic arterial flow is usually well tolerated, this is not always the case. It is important to predict in what circumstances complications are likely to occur. The main determinants that should guide the surgeon faced with this problem are whether the portal circulation is normal, whether structures carrying collateral blood supply have been interrupted, and whether some form of biliary reconstruction is needed.