• Annals of surgery · Jul 2022

    Biliary Stricture after Necrotizing Pancreatitis: An Underappreciated Challenge.

    • Thomas K Maatman, Eugene P Ceppa, Evan L Fogel, Jeffrey J Easier, Mark A Gromski, Michael G House, Attila Nakeeb, C Max Schmidt, Stuart Sherman, and Nicholas J Zyromski.
    • Department of Surgery, Indiana University School of Medicine, Indianapolis, IN.
    • Ann. Surg. 2022 Jul 1; 276 (1): 167172167-172.

    ObjectiveBiliary stricture in necrotizing pancreatitis (NP) has not been systematically categorized; therefore, we sought to define the incidence and natural history of biliary stricture caused by NP.Summary Of Background DataBenign biliary stricture occurs secondary to bile duct injury, anastomotic narrowing, or chronic inflammation and fibrosis. The profound locoregional inflammatory response of NP creates challenging biliary strictures.MethodsNP patients treated between 2005 and 2019 were reviewed. Biliary stricture was identified on cholangiography as narrowing of the extrahepatic biliary tree to <75% of the diameter of the unaffected duct. Biliary stricture risk factors and outcomes were evaluated.ResultsAmong 743 NP patients, 64 died, 13 were lost to follow-up; therefore, a total of 666 patients were included in the final cohort. Biliary stricture developed in 108 (16%) patients. Mean follow up was 3.5 ± 3.3 years. Median time from NP onset to biliary stricture diagnosis was 4.2 months (interquartile range, 1.8 to 10.9). Presentation was commonly clinical or biochemical jaundice, n = 30 (28%) each. Risk factors for stricture development were splanchnic vein thrombosis and pancreatic head parenchymal necrosis. Median time to stricture resolution was 6.0 months after onset (2.8 to 9.8). A mean of 3.3 ± 2.3 procedures were performed. Surgical intervention was required in 22 (20%) patients. Endoscopic treatment failed in 17% (17/99) of patients and was not associated with stricture length. Operative treatment of biliary stricture was more likely in patients with infected necrosis or NP disease duration ≥6 months.ConclusionBiliary stricture occurs frequently after NP and is associated with splanchnic vein thrombosis and pancreatic head necrosis. Surgical correction was performed in 20%.Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.

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