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  • Title: Transhepatic stent placement for portal vein obstruction after hepatobiliary and pancreatic surgery: long-term efficacy and risk factor for stent failure.
    Author: Lee JH, Yoon CJ, Choi WS.
    Journal: Eur Radiol; 2021 Mar; 31(3):1300-1307. PubMed ID: 32880695.
    Abstract:
    OBJECTIVES: To evaluate the long-term efficacy of transhepatic portal vein (PV) stent placement in patients with postoperative PV obstruction and to identify risk factors for stent failure. METHODS: Between January 2007 and October 2019, percutaneous transhepatic PV stent placement was attempted in 60 patients with postoperative PV obstruction. Technical and clinical success, complications, and stent patency were retrospectively evaluated. Thirteen clinical variables were analyzed to determine risk factors for stent failure. RESULTS: Stent placement was technically successful in all patients. Thromboaspiration (n = 19) and jejunal variceal embolization (n = 7) were performed in the same session. Clinical symptoms related to portal hypertension were resolved in 54 patients (90.0%). There was no procedure-related complication. During the follow-up period (mean 630 days), stent failure occurred in 13 patients. One- and 5-year stent patency rate was 74.8% and 64.9%, respectively. The presence of a pancreatic fistula was the only independent risk factor associated with stent failure (HR 7.54; 95% CI 2.02-28.10, p = 0.003). CONCLUSIONS: Percutaneous transhepatic PV stent placement is a technically feasible and effective treatment for postoperative PV obstruction. The pancreatic fistula is a risk factor for stent failure. KEY POINTS: • Percutaneous transhepatic stent placement is an effective treatment to improve portal hypertension-related symptoms in patients with portal vein obstruction after hepatobiliary and pancreatic surgery. • The pancreatic fistula is an independent risk factor for portal vein stent failure.
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