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COVERED METALLIC STENTS FOR MANAGEMENT OF DISTAL MALIGNANT BILIARY OBSTRUCTION
Author(s) -
Isayama Hiroyuki,
Kawabe Takao,
Nakai Yousuke,
Komatsu Yutaka,
Omata Masao
Publication year - 2004
Publication title -
digestive endoscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.5
H-Index - 56
eISSN - 1443-1661
pISSN - 0915-5635
DOI - 10.1111/j.1443-1661.2004.00391.x
Subject(s) - medicine , stent , occlusion , surgery , covered stent , radiology
Covered metallic stent (covered MS) is useful to improve quality‐of‐life in patients with unresectable malignant distal biliary obstruction. We have managed 129 patients with three types of covered MS; polyurethane‐covered Wallstent (hand‐craft), polyurethane‐covered Diamond stent (hand‐craft), and silicone‐covered Wallstent (commercially available). They were compared with 115 cases treated with uncovered metallic stent (uncovered MS). There was no significant difference in survival between the two groups. The cumulative stent patency was significantly higher in the covered MS group than uncovered MS group ( P = 0.0027). Stent occlusion occurred in 17 patients (13%) in the covered MS group, and in 48 patients (42%) in the uncovered MS group ( P < 0.0001). Complications of covered MS were 8 (6%) in acute cholecystitis, 10 (8%) in acute pancreatitis, and 10 (8%) in migration. We evaluated the risk factors for these complications of covered MS.