Open Access
CC BY-NC-ND 4.0 · Endosc Int Open 2022; 10(09): E1311-E1321
DOI: 10.1055/a-1880-7430
Review

Covered self-expandable metal stents for pancreatic duct stricture: a systematic review and meta-analysis

Alberto Tringali
1   Endoscopy Unit, Department of Medicine, ULSS 2 Marca Trevigiana, Conegliano Hospital, Italy
,
Deborah Costa
1   Endoscopy Unit, Department of Medicine, ULSS 2 Marca Trevigiana, Conegliano Hospital, Italy
,
Matteo Rota
2   Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
,
Douglas G. Adler
3   Center for Advanced Therapeutic Endoscopy (CATE), Centura Health, Denver, Colorado, United States
,
Guido Costamagna
4   Digestive Endoscopy Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCSS, Rome, Italy
› Author Affiliations
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Abstract

Background and study aims Placement of a covered (C)-self-expandable metal stent (SEMS) has been recently investigated as an alternative endoscopic treatment for main pancreatic duct stricture (MPDS) in chronic pancreatitis. Our aim was to carry out a systematic review and meta-analysis of studies quantifying efficacy and safety of C-SEMSs in the management of MPDS.

Methods A multiple database search was performed, including MEDLINE, Embase and Cochrane Library, from January 2000 to September 2020, to identify studies reporting the efficacy and safety of C-SEMSs in patients with MPDS. Stricture and pain resolution were investigated. Other outcomes included technical success, stent migration, stricture recurrence and need for repeated stent placement. Pancreatitis, severe abdominal pain requiring stent removal and de-novo stricture were recorded as complications.

Results Nineteen studies were identified, which included a total of 300 patients. C-SEMSs showed a pooled stricture resolution rate of 91 % [95 % confidence interval (CI), 85 %–96 %] and a pooled pain resolution rate of 92 % (95 % CI, 85 %–98 %). The pooled proportion for stricture recurrence was equal to 6 % (95 % CI, 1 %–14 %), while stent migration occurred in 33 of 300 patients, the pooled proportion being 7 % (95 % CI 1 %–15 %). The pooled mean stent duration was 133 days (95 % CI, 100–166 days). The most common complication was pancreatitis (3 %, 95 % CI 0 %–8 %), while de-novo stricture pooled proportion was 2 % (95 % CI, 0 %–5 %).

Conclusions C-SEMSs are effective and safe in the treatment of MPDS. However, there is a significant need for further high-quality, well-designed studies to produce evidence-based data on short and long-term efficacy, safety, costs of C-SEMSs, and also optimal stent duration.

Supplementary material



Publication History

Received: 05 December 2021

Accepted after revision: 14 June 2022

Accepted Manuscript online:
21 June 2022

Article published online:
14 September 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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