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  • Title: Clinical outcomes of palliative self-expanding metallic stents in patients with malignant colorectal obstruction.
    Author: Kim BC, Han KS, Hong CW, Sohn DK, Park JW, Park SC, Kim SY, Baek JY, Choi HS, Chang HJ, Kim DY, Oh JH.
    Journal: J Dig Dis; 2012 May; 13(5):258-66. PubMed ID: 22500788.
    Abstract:
    OBJECTIVE: Self-expanding metallic stents (SEMS) are useful palliative option and a bridge to surgery in malignant colorectal obstruction. The aim of this study was to evaluate the clinical outcomes of SEMS to palliate colorectal malignant obstruction. METHODS: Malignant colorectal obstructive patients who underwent SEMS insertion at the National Cancer Center, Korea from January 2004 to June 2008 were enrolled in the study. Patients' clinical characteristics, outcomes and complications for palliative SEMS insertion were retrospectively analyzed. RESULTS: A total of 54 patients were enrolled in the palliative SEMS group and 48 patients with obstructive CRC were included in the SEMS as the bridge to surgery group. Obstruction of the left colon occurred in 52 patients of the palliative SEMS group and all patients in SEMS as bridge to surgery group. For primary SEMS insertion, the technical success (TS) rate was 87.0% and the clinical success (CS) rate 89.4%, while the rates of early and late complications were 24.1% and 23.4%, respectively. There was no procedure-related mortality. Stent migration rate was higher in the cases treated with small diameter and covered type of stents. Median time to reobstruction and migration were 85 and 101 days, respectively. TS and CS rates for SEMS reinsertion were comparable to those for primary SEMS insertion. CONCLUSIONS: Palliative SEMS are effective and favorable procedures for malignant colorectal obstruction but with some complications. Stent migration is associated with covered type and small diameter stents while other factors including length of stent and chemotherapy do not affect stent complications in the present study.
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