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Comparison of different types of covered self-expandable metal stents for malignant colorectal obstruction

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Author(s)
Joon Seop LeeHyun Seok LeeEun Soo KimMin Kyu JungJin Tae JungHo Gak KimDong Wook LeeDae Jin KimYoo Jin LeeChang Heon Yang
Keimyung Author(s)
Lee, Yoo Jin
Department
Dept. of Internal Medicine (내과학)
Journal Title
Surg Endosc
Issued Date
2021
Volume
35
Issue
8
Keyword
Colorectal malignant obstructionCovered stentsMigration
Abstract
Background:
Stent migration is one of the main drawbacks of covered self-expandable metal stent (SEMSs), occurring in up to 40% of malignant colorectal obstruction management cases. Various types of covered SEMSs have been developed to reduce this risk. We aimed to compare the effectiveness and complication rates of the flare-type covered SEMS (Flare) with those of the double-layered covered SEMS (ComVi).

Methods:
We performed a prospective, randomized study in four tertiary referral centers between July 2016 and April 2018. Patients with malignant colorectal obstruction were eligible for the study. The primary outcome was migration rate as observed within the first month. Rates of technical success, clinical success, and complications within the first month were also assessed.

Results:
A total of 60 patients were included (mean age, 70.5 ± 12.5 years; male, 31 [51.7%]). Flare and ComVi stents were applied in 30 patients each. The Flare and ComVi groups showed comparable technical success rates (90% [27/30] vs. 96.7% [29/30], p = 0.605) and clinical success rates (85.2% [23/27] vs. 75.9% [22/29], p = 0.589). Migration occurred in three (11.1%) and four (13.8%) cases in the Flare and ComVi groups, respectively, without significant difference (p = 0.99), and the risk of other complications, including perforation and re-obstruction, did not differ between the two groups.

Conclusions:
Our study indicates that both flare-shape and double-layered covered SEMSs are equally effective options for the management of malignant colorectal obstruction with low migration rates when compared with previously reported migration risk of covered SEMS.
Keimyung Author(s)(Kor)
이유진
Publisher
School of Medicine (의과대학)
Citation
Joon Seop Lee et al. (2021). Comparison of different types of covered self-expandable metal stents for malignant colorectal obstruction. Surg Endosc, 35(8), 4124–4133. doi: 10.1007/s00464-020-07869-x
Type
Article
ISSN
1432-2218
Source
https://link.springer.com/article/10.1007%2Fs00464-020-07869-x
DOI
10.1007/s00464-020-07869-x
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/43561
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Internal Medicine (내과학)
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