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  • Title: Predictors and outcomes of delayed plastic biliary stent removal following endoscopic retrograde cholangiopancreatography.
    Author: Kim SJ, Ohanian E, Lee F, Nam B, Che K, Laine L, Kim SE, Kim JJ.
    Journal: Scand J Gastroenterol; 2017 Oct; 52(10):1128-1132. PubMed ID: 28657377.
    Abstract:
    OBJECTIVE: Plastic biliary stents are commonly placed during endoscopic retrograde cholangiopancreatography (ERCP) and should be removed or replaced within 3 months to reduce the risk of stent obstruction. The aim of the study was to identify predictors and outcomes of patients who had delayed plastic biliary stent removal following ERCP. MATERIALS AND METHODS: Consecutive patients who received ERCP with plastic biliary stent placement at Loma Linda University Medical Center (10/2004-6/2013) were identified. Delayed removal was defined as presence of stent >3 months after index ERCP. Multivariable regression analysis to identify baseline characteristics associated with delayed removal was performed. Clinical outcomes of stent obstruction (e.g., cholangitis, hospitalization, intensive care) were also collected for those with delayed removal. RESULTS: Among 374 patients undergoing ERCP with plastic biliary stent, 71 (19%) had delayed stent removal. Patients who had anesthesia assistance (AOR = 3.8, 95%CI 1.2-11.4), non-English primary language (AOR = 3.0, 95%CI 1.5-6.2), and outpatient ERCP (AOR = 2.0, 95%CI 1.1-3.4) had increased while choledocholithiasis (AOR = 0.5, 95%CI 0.3-0.99) had lower odds of delayed stent removal. Among those with delayed removal, 13 (18%) were hospitalized for stent obstruction (5 (7%) had cholangitis, 8 (11%) were hospitalized for more than a week, and 3 (4%) required intensive care). CONCLUSIONS: Almost one-fifth of patients who underwent ERCP with plastic biliary stent placement had delayed removal with nearly one-fifth of these patients requiring hospitalization for stent obstruction. Targeting patients at risk by improving communication and ease of scheduling an ERCP may reduce preventable adverse events associated with delayed biliary stent removal.
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