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  • Title: Efficacy and Optimal Duration of Metallic Stent in the Management of Refractory Anastomotic Stricture After Liver Transplantation.
    Author: Jang S, Parsi MA, Lopez R, Bhatt A, Vargo JJ.
    Journal: Clin Gastroenterol Hepatol; 2017 Nov; 15(11):1776-1781. PubMed ID: 28624651.
    Abstract:
    BACKGROUND & AIMS: Anastomotic bile duct stricture (ABS) remains as one of the most common complications in liver transplant patients. Current practice of endoscopic retrograde cholangiopancreatography (ERCP) with insertion of plastic stent often requires multiple procedures before achieving stricture resolution. To date, studies using covered self-expandable metallic stent (cSEMS) in ABS management reported varying degrees of efficacy. The aim of this study was to analyze long-term efficacy of cSEMS in patients with ABS and identify factor(s) influencing the probability of stricture resolution. METHODS: Liver transplant patients with ABS who received cSEMS were identified by query of our endoscopic database. The rate of stricture resolution, duration of stricture-free interval, factors associated with stricture resolution, and adverse outcomes were analyzed. RESULTS: Among 44 liver transplant patients with refractory ABS who underwent ERCP-cSEMS, stricture resolution was observed in 33 patients (75%). Longer duration of cSEMS insertion was the only variable associated with increasing probability of stricture resolution. There was 20% increase in odds of stricture resolution for every additional week cSEMS was in place. Among 33 patients with initial stricture resolution, 26 patients (78.8%) maintained bile duct patency throughout the follow-up period. The most common adverse outcome was internal migration of cSEMS, which occurred in 11 patients (25%). CONCLUSIONS: The rate of ABS resolution observed with cSEMS placement in a single ERCP session appears to be comparable with that of multiple ERCPs with plastic stent placement reported previously. Longer stent insertion period is associated with higher likelihood of ABS resolution.
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