TY - JOUR
T1 - Percutaneous stent placement for the treatment of malignant biliary obstruction
T2 - Nitinol versus elgiloy stents
AU - Zurstrassen, Charles Edouard
AU - Bitencourt, Almir Galvão Vieira
AU - Guimaraes, Marcos Duarte
AU - Cavalcante, Aline Cristine Barbosa Santos
AU - Tyng, Chiang Jeng
AU - Amoedo, Mauricio Kauark
AU - Matsushita Junior, João Paulo Kawaoka
AU - Szklaruk, Janio
AU - Marchiori, Edson
AU - Chojniak, Rubens
N1 - Publisher Copyright:
© Colégio Brasileiro de Radiologia e Diagnóstico por Imagem.
PY - 2017
Y1 - 2017
N2 - 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.
AB - 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.
KW - Biliary tract/pathology
KW - Drainage
KW - Oncology
KW - Radiology, interventional
KW - Stents
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U2 - 10.1590/0100-3984.2015.0183
DO - 10.1590/0100-3984.2015.0183
M3 - Article
C2 - 28428652
AN - SCOPUS:85018291893
SN - 0100-3984
VL - 50
SP - 97
EP - 102
JO - Radiologia Brasileira
JF - Radiologia Brasileira
IS - 2
ER -