Interventional Management of Malignant Colorectal Obstruction: Use of Covered and Uncovered Stents
- Author(s)
- Jin Soo Choi; Sung Wook Choo; Kwang Bo Park; Sung Wook Shin; So-Young Yoo; Ji Hye Kim; Young Soo Do
- Keimyung Author(s)
- Choi, Jin Soo
- Department
- Dept. of Radiology (영상의학)
- Journal Title
- Korean Journal of Radiology
- Issued Date
- 2007
- Volume
- 8
- Issue
- 1
- Keyword
- Colon; interventional procedures; neoplasm; stenosis; obstruction; Stents; prostheses
- Abstract
- Objective : We wanted to evaluate usefulness of uncovered stent in comparison with covered stent for the palliative treatment of malignant colorectal obstruction. Materials and Methods : Covered (n = 52, type 1 and type 2) and uncovered (n = 22, type 3) stents were placed in 74 patients with malignant colorectal obstruction. Stent insertion was performed for palliative treatment in 37 patients (covered stent: n = 23 and uncovered stent: n = 14). In the palliative group, the data on the success of the procedure, the stent patency and the complications between the two groups (covered versus uncovered stents) were compared. Results : The technical success rate was 89% (33/37). Symptomatic improvement was achieved in 86% (18/21) of the covered stent group and in 92% (11/12) of the uncovered stent group patients. The period of follow-up ranged from three to 319 days (mean period: 116±85 days). The mean period of stent patency was 157±33 days in the covered stent group and 165±25 days in the uncovered stent group. In the covered stent group, stent migration (n = 11), stent fracture (n = 2) and poor expansion of the stent (n = 2) were noted. In the uncovered stent group, tumor ingrowth into the stents (n = 3) was noted. Conclusion :
Self-expanding metallic stents are effective for relieving malignant colorectal obstruction. The rate of complications is lower in the uncovered stent group than in the covered stent group.
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