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Percutaneous stent placement for the treatment of malignant biliary obstruction: nitinol versus elgiloy stents

OBJECTIVE: This study aimed to compare two self-expanding stents, a nitinol stent and an elgiloy stent, both placed percutaneously, in terms of their efficacy in palliating inoperable malignant biliary obstruction. MATERIALS AND METHODS: We retrospectively investigated 99 patients with unresectable...

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Autores principales: Zurstrassen, Charles Edouard, Bitencourt, Almir Galvão Vieira, Guimaraes, Marcos Duarte, Cavalcante, Aline Cristine Barbosa Santos, Tyng, Chiang Jeng, Amoedo, Mauricio Kauark, Matsushita Junior, João Paulo Kawaoka, Szklaruk, Janio, Marchiori, Edson, Chojniak, Rubens
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Colégio Brasileiro de Radiologia e Diagnóstico por Imagem 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5396999/
https://www.ncbi.nlm.nih.gov/pubmed/28428652
http://dx.doi.org/10.1590/0100-3984.2015.0183
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author Zurstrassen, Charles Edouard
Bitencourt, Almir Galvão Vieira
Guimaraes, Marcos Duarte
Cavalcante, Aline Cristine Barbosa Santos
Tyng, Chiang Jeng
Amoedo, Mauricio Kauark
Matsushita Junior, João Paulo Kawaoka
Szklaruk, Janio
Marchiori, Edson
Chojniak, Rubens
author_facet Zurstrassen, Charles Edouard
Bitencourt, Almir Galvão Vieira
Guimaraes, Marcos Duarte
Cavalcante, Aline Cristine Barbosa Santos
Tyng, Chiang Jeng
Amoedo, Mauricio Kauark
Matsushita Junior, João Paulo Kawaoka
Szklaruk, Janio
Marchiori, Edson
Chojniak, Rubens
author_sort Zurstrassen, Charles Edouard
collection PubMed
description OBJECTIVE: This study aimed to compare two self-expanding stents, a nitinol stent and an elgiloy stent, both placed percutaneously, in terms of their efficacy in palliating inoperable malignant biliary obstruction. MATERIALS AND METHODS: We retrospectively investigated 99 patients with unresectable malignant biliary obstruction treated with percutaneous placement of a self-expanding metallic stent at our institution between May 2007 and January 2010. Serum bilirubin and liver enzyme levels were measured before and 30 days after stenting. For all procedures using elgiloy or nitinol stents, stent occlusion and patient survival rates were calculated using Kaplan-Meyer analysis. RESULTS: All of the patients showed clinical improvement after stent placement, with no difference between the two groups. In both groups, the occlusion-free survival rate was 67% at 30 days, 37% at 90 days, 25% at 180 days, and 10% at 360 days, with no significant difference in relation to the type of stent. CONCLUSION: The two stents evaluated showed comparable efficacy for the percutaneous treatment of unresectable biliary malignancy, with good clinical results.
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spelling pubmed-53969992017-04-20 Percutaneous stent placement for the treatment of malignant biliary obstruction: nitinol versus elgiloy stents Zurstrassen, Charles Edouard Bitencourt, Almir Galvão Vieira Guimaraes, Marcos Duarte Cavalcante, Aline Cristine Barbosa Santos Tyng, Chiang Jeng Amoedo, Mauricio Kauark Matsushita Junior, João Paulo Kawaoka Szklaruk, Janio Marchiori, Edson Chojniak, Rubens Radiol Bras Original Articles OBJECTIVE: This study aimed to compare two self-expanding stents, a nitinol stent and an elgiloy stent, both placed percutaneously, in terms of their efficacy in palliating inoperable malignant biliary obstruction. MATERIALS AND METHODS: We retrospectively investigated 99 patients with unresectable malignant biliary obstruction treated with percutaneous placement of a self-expanding metallic stent at our institution between May 2007 and January 2010. Serum bilirubin and liver enzyme levels were measured before and 30 days after stenting. For all procedures using elgiloy or nitinol stents, stent occlusion and patient survival rates were calculated using Kaplan-Meyer analysis. RESULTS: All of the patients showed clinical improvement after stent placement, with no difference between the two groups. In both groups, the occlusion-free survival rate was 67% at 30 days, 37% at 90 days, 25% at 180 days, and 10% at 360 days, with no significant difference in relation to the type of stent. CONCLUSION: The two stents evaluated showed comparable efficacy for the percutaneous treatment of unresectable biliary malignancy, with good clinical results. Colégio Brasileiro de Radiologia e Diagnóstico por Imagem 2017 /pmc/articles/PMC5396999/ /pubmed/28428652 http://dx.doi.org/10.1590/0100-3984.2015.0183 Text en http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Articles
Zurstrassen, Charles Edouard
Bitencourt, Almir Galvão Vieira
Guimaraes, Marcos Duarte
Cavalcante, Aline Cristine Barbosa Santos
Tyng, Chiang Jeng
Amoedo, Mauricio Kauark
Matsushita Junior, João Paulo Kawaoka
Szklaruk, Janio
Marchiori, Edson
Chojniak, Rubens
Percutaneous stent placement for the treatment of malignant biliary obstruction: nitinol versus elgiloy stents
title Percutaneous stent placement for the treatment of malignant biliary obstruction: nitinol versus elgiloy stents
title_full Percutaneous stent placement for the treatment of malignant biliary obstruction: nitinol versus elgiloy stents
title_fullStr Percutaneous stent placement for the treatment of malignant biliary obstruction: nitinol versus elgiloy stents
title_full_unstemmed Percutaneous stent placement for the treatment of malignant biliary obstruction: nitinol versus elgiloy stents
title_short Percutaneous stent placement for the treatment of malignant biliary obstruction: nitinol versus elgiloy stents
title_sort percutaneous stent placement for the treatment of malignant biliary obstruction: nitinol versus elgiloy stents
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5396999/
https://www.ncbi.nlm.nih.gov/pubmed/28428652
http://dx.doi.org/10.1590/0100-3984.2015.0183
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