Meta-Analysis
Copyright ©The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Dec 21, 2015; 21(47): 13374-13385
Published online Dec 21, 2015. doi: 10.3748/wjg.v21.i47.13374
Endoscopic stenting for inoperable malignant biliary obstruction: A systematic review and meta-analysis
Leonardo Zorrón Pu, Eduardo Guimarães Hourneaux de Moura, Wanderley Marques Bernardo, Felipe Iankelevich Baracat, Ernesto Quaresma Mendonça, André Kondo, Gustavo Oliveira Luz, Carlos Kiyoshi Furuya Júnior, Everson Luiz de Almeida Artifon
Leonardo Zorrón Pu, Eduardo Guimarães Hourneaux de Moura, Felipe Iankelevich Baracat, Ernesto Quaresma Mendonça, André Kondo, Gustavo Oliveira Luz, Carlos Kiyoshi Furuya Júnior, Everson Luiz de Almeida Artifon, Gastrointestinal Endoscopy Division, Department of Gastroenterology, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Sao Paulo 05403-000, Brazil
Wanderley Marques Bernardo, Guidelines Program Coordinator, Brazilian Medical Association, Sao Paulo 01333-001, Brazil
Author contributions: Zorrón Pu L did the electronic database search, revised and read all selected studies, analysed all data and graphs, wrote the paper; de Moura EGH scientifically coordinated the study; Bernardo WM performed a paired database search, peer-reviewed the paper and scientifically coordinated the study (biostatistics and evidence-based guidance); Baracat FI helped with the development of tables and graphs and, through weekly reunions, provided cues for improvements; Mendonça EQ helped with the development of tables and graphs and, through weekly reunions, provided cues for improvements; Kondo A helped with the revision of the article; Luz GO provided technical observations and evaluated bias and applicability of the therapies; Furuya Júnior CK provided technical observations and evaluated bias and applicability of the therapies; Artifon ELA scientifically coordinated the study; all authors reviewed and approved the final manuscript as submitted.
Conflict-of-interest statement: All the authors declare that they have no competing interests.
Data sharing statement: The technical appendix, statistical code, and dataset are available from the corresponding author at leozorron@gmail.com. No additional data are available.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Leonardo Zorrón Pu, MD, Fellow of the Gastrointestinal Endoscopy Division, Department of Gastroenterology, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Sao Paulo 05403-000, Brazil. leozorron@gmail.com
Telephone: +55-11-26616467 Fax: +55-11-26616467
Received: May 21, 2015
Peer-review started: May 23, 2015
First decision: July 10, 2015
Revised: July 22, 2015
Accepted: September 28, 2015
Article in press: September 30, 2015
Published online: December 21, 2015
Processing time: 207 Days and 15.6 Hours
Core Tip

Core tip: Endoscopic stenting is accepted worldwide as the first choice palliative treatment for malignant biliary obstruction. There are still two types of materials currently being used, which are plastic and metal. Therefore, many doubts are raised as to which one is the most beneficial to the patient. This review gathers the highest quality information available about these two types of stent, giving information in regards to dysfunction, complication, re-intervention rates, costs, survival, and patency time; and intend to help handle clinical practice nowadays, especially in countries where the availability of metallic stents is scarce and cannot be offered to all patients.