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

Charles Edouard Zurstrassen; Almir Galvão Vieira Bitencourt; Marcos Duarte Guimaraes; Aline Cristine Barbosa Santos Cavalcante; Chiang Jeng Tyng; Mauricio Kauark Amoedo; João Paulo Kawaoka Matsushita Junior; Janio Szklaruk; Edson Marchiori; Rubens Chojniak

doi:10.1590/0100-3984.2015.0183

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

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

Charles Edouard Zurstrassen, Almir Galvão Vieira Bitencourt, Marcos Duarte Guimaraes, Aline Cristine Barbosa Santos Cavalcante, Chiang Jeng Tyng, Mauricio Kauark Amoedo, João Paulo Kawaoka Matsushita Junior, Janio Szklaruk, Edson Marchiori and Rubens Chojniak

Radiologia brasileira, Vol.50(2), pp.97-102

03/2017

DOI: 10.1590/0100-3984.2015.0183

PMCID: PMC5396999

PMID: 28428652

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Abstract

Abstract 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.

RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Details

Title: Subtitle: Percutaneous stent placement for the treatment of malignant biliary obstruction: nitinol versus elgiloy stents
Creators: Charles Edouard Zurstrassen - AC Camargo Hospital
Almir Galvão Vieira Bitencourt - AC Camargo Hospital
Marcos Duarte Guimaraes - AC Camargo Hospital
Aline Cristine Barbosa Santos Cavalcante - AC Camargo Hospital
Chiang Jeng Tyng - AC Camargo Hospital
Mauricio Kauark Amoedo - AC Camargo Hospital
João Paulo Kawaoka Matsushita Junior - AC Camargo Hospital
Janio Szklaruk - The University of Texas MD Anderson Cancer Center
Edson Marchiori - Universidade Federal do Rio de Janeiro
Rubens Chojniak - AC Camargo Hospital
Resource Type: Journal article
Publication Details: Radiologia brasileira, Vol.50(2), pp.97-102
DOI: 10.1590/0100-3984.2015.0183
PMID: 28428652
PMCID: PMC5396999
NLM abbreviation: Radiol Bras
ISSN: 1678-7099
eISSN: 1678-7099
Publisher: Colégio Brasileiro de Radiologia e Diagnóstico por Imagem
Alternative title: Tratamento percutâneo de obstrução biliar maligna: comparação entre os stents nitinol e elgiloy
Language: Portuguese
Date published: 03/2017
Academic Unit: Radiology
Record Identifier: 9984697622302771

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