Retrospective Study
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastrointest Endosc. Sep 16, 2022; 14(9): 547-554
Published online Sep 16, 2022. doi: 10.4253/wjge.v14.i9.547
Endoscopic therapy using a self-expandable metallic stent with an anti-migration system for postorthotopic liver transplantation anastomotic biliary stricture
Larissa Wermelinger Pinheiro, Fernanda Prata Martins, Gustavo Andrade De Paulo, Mônica Lúcia Campos Contini, Angelo Paulo Ferrari, Ermelindo Della Libera
Larissa Wermelinger Pinheiro, Angelo Paulo Ferrari, Ermelindo Della Libera, Department of Gastroenterology, Federal University of São Paulo/Escola Paulista de Medicina, São Paulo 04023-900, Brazil
Fernanda Prata Martins, Gustavo Andrade De Paulo, Mônica Lúcia Campos Contini, Angelo Paulo Ferrari, Ermelindo Della Libera, Department of Endoscopy Unit, Hosp Israelita Albert Einstein, São Paulo 04042033, Brazil
Author contributions: Pinheiro LW, Martins FP, Contini MLC, and De Paulo GA contributed to the data acquisition; Pinheiro LW, De Paulo GA, Ferrari AP, and Della Libera E contributed to the data analysis and interpretation; Pinheiro LW contributed to the elaboration of article draft; Martins FP and Contini MLC contributed to the elaboration and review of article draft, critical review for important intellectual content; De Paulo GA contributed to the critical review of final paper for important intellectual content; Ferrari AP and Della Libera E contributed to the critical review and approval of the final submitted version.
Institutional review board statement: This retrospective study was approved by the Institution's Human Research Committee of Hospital Israelita Albert Einstein (No. 37755020.3.0000.0071).
Informed consent statement: All study participants, or their legal guardian, provided informed written consent.
Data sharing statement: No additional data are available.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) licence, which permits others to distribute, remix, adapt, and build upon this work noncommercially and licence their derivative works on different terms, provided the original work is properly cited and the use is noncommercial. See https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Ermelindo Della Libera, MD, PhD, Adjunct Associate Professor, Department of Endoscopy Unit, Hosp Israelita Albert Einstein, Rua Ruggero Fsano, s/n - Pavilhão Vick e Joseph Safra - Piso I3 - Morumbi - SP, São Paulo 04026001, Brazil. edellaliberajr@uol.com.br
Received: February 3, 2022
Peer-review started: February 3, 2022
First decision: April 12, 2022
Revised: April 19, 2022
Accepted: August 6, 2022
Article in press: August 6, 2022
Published online: September 16, 2022
Core Tip

Core Tip: This retrospective study evaluated the efficacy of endoscopic treatment using an anti-migration fully covered self-expandable metallic stents (Am-FCSEMS) in patients with postorthotopic liver transplantation (p-OLT) anastomotic biliary stricture (ABS). Technical success occurred in all patients (100%). Stricture resolution occurred in 13/14 patients (92.85%). Adverse events occurred in 3/14 patients (21.42%). There were no cases of distal stent migration. After Am-FCSEMS removal, all 13 patients who had ABS resolution were followed-up for an average of 411 d, and there was no stricture recurrence or need for further endoscopic therapy. Endoscopic therapy using an Am-FCSEMS for p-OLT ABS is safe and effective, with a high stricture resolution rate, probably due to the absence of stent migration.