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Lee, J.H., Hwang, D.W., Lee, S.Y., Hwang, J.W., Song, D.K., Gwon, D.I., Shin, J.H., Ko, G.Y., Park, K.M. and Lee, Y.J. (2012) Clinical Features and Management of Pseudoaneurysmal Bleeding after Pancreatoduodenectomy. The American Surgeon, 78, 309-317.

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• TITLE: Portal Vein Stenosis Caused by Postoperative Complications after Pancreatobiliary Surgery

  AUTHORS: Hiroyuki Kinoshita, Hideaki Tsubakihara, Shinji Yamazoe, Tomoya Kato, Kazunari Mori

  KEYWORDS: Portal Vein Stenosis, Pancreatobiliary Surgery, Pancreatic Fistula, Intra-Abdominal Infection

  JOURNAL NAME: Surgical Science, Vol.8 No.8, August 16, 2017

  ABSTRACT: Background: Portal vein (PV) stenosis or obstruction is sometimes observed in patients who were performed pancreatobiliary surgery. These conditions such as pancreatic fistulas (PF) and intra-abdominal infections after pancreatobiliary surgery still represent significant clinical issues. In addition, insufficient attention is paid to the fact that severe stenosis of the PV can result in life-threatening complications. Material and Methods: At our institution, lymph node dissection within the hepatoduodenal ligament was performed for biliary or pancreatic neoplasms in 68 patients between October 2005 and April 2017. The diameter of the PV was measured on computed tomography scans obtained before and after the operation. PV stenosis was defined as a >50% reduction in the diameter of the PV. The degree of PF (Pancreatic Fistula) was defined by the International Study Group of Pancreatic Fistula after pancreaticoduodenectomy. Furthermore, the Clavien-Dindo (CD) classification was used to assess the complications that occurred in cases in which pancreatojejunostomy was not performed. The relationship between the degree of PV stenosis and the occurrence of postoperative complications was analyzed. Results: The overall frequency of PF was 56.3% (18 patients). Grade B or C PF occurred in 5 patients (15.6%). In the present small series, a correlation was detected between the degree of PV stenosis and the occurrence of postoperative complications after pancreatobiliary surgery (p Conclusions: Clinicians should keep in mind that the PV can narrow in cases in which grade B or C PF or intra-abdominal abscesses occur after pancreatobiliary surgery.