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 < 0.05). 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.
Highlights
Portal vein (PV) stenosis or obstruction can be caused by tumor invasion [1], radiotherapy [2] [3], and surgical procedures such as liver transplantation or PV resection during pancreatic resection [4] [5]
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 < 0.05)
The purpose of the present study is to examine the relationship between the extent of PV stenosis and the occurrence of postoperative complications, such as pancreatic fistulas (PF) or intra-abdominal infections, after pancreatobiliary surgery
Summary
Portal vein (PV) stenosis or obstruction can be caused by tumor invasion [1], radiotherapy [2] [3], and surgical procedures such as liver transplantation or PV resection during pancreatic resection [4] [5]. The purpose of the present study is to examine the relationship between the extent of PV stenosis and the occurrence of postoperative complications, such as pancreatic fistulas (PF) or intra-abdominal infections, after pancreatobiliary surgery. 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 the present small series, a correlation was detected between the degree of PV stenosis and the occurrence of postoperative complications after pancreatobiliary surgery (p < 0.05). 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
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