Efficacy of uncovered colonic stents for extrinsic versus intrinsic malignant large bowel obstruction
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and Other Interventional Techniques
Efficacy of uncovered colonic stents for extrinsic versus intrinsic malignant large bowel obstruction Brian R. Weston1 · Jigar M. Patel1 · Mala Pande1 · Phillip J. Lum1 · William A. Ross1 · Gottumukkala S. Raju1 · Patrick M. Lynch1 · Emmanuel Coronel1 · Phillip S. Ge1 · Jeffrey H. Lee1 Received: 27 November 2019 / Accepted: 27 August 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Background Previous studies evaluating self-expandable metal stents (SEMS) for management of malignant extrinsic colon obstruction have yielded conflicting results. We evaluated the efficacy of uncovered SEMS for extrinsic colon malignancy (ECM) versus intrinsic colon malignancy (ICM). Methods Retrospective review of all patients referred for colonic SEMS at a tertiary cancer center between 2007 and 2018 was performed. Primary outcome measures were technical success, clinical success, intervention rate, and overall survival. Results 138 patients with ECM and 119 patients with ICM underwent attempted stent placement. The rectum and/or sigmoid colon was the most common stricture site. Technical success was lower in the ECM group [86% vs 96% (p = .009)]. Clinical success was lower in the ECM group both at 7 days [82% vs 95% (p = .004)] and at 90 days [60% vs 86% (p
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