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| Applicability of self-expanded metal stents in the treatment of obstruction in colorectal cancer |
| LI Jing1, ZHANG Yanshuang1,2, XU Mengnan1, ZHANG Jing1, LI Bairong1, NING Shoubin1, GU Guoli3 |
1. Department of Gastroenterology,3. Department of General Surgery, Air Force Characteristic Medical Center of PLA, Beijing 100142,China;
2. Graduate school of Hebei North University, Zhangjiakou 075061, China |
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Abstract Objective To explore the applicability of self-expanded metal stents in the management of obstruction caused by colorectal cancer.Methods The clinical data on forty patients who received stent insertion for malignant colorectal obstruction at our center between September 2014 and December 2019 was retrospectively analyzed. These patients were divided into the complication group and the non-complication group according to the occurrence of complications within one week after surgery. They were closely followed up after treatment, and the last follow-up date was April 8, 2020.Results The technical and clinical success rates of stenting were 100.00% and 97.50% respectively. Complications occurred in 25.00% (10/40) of these patients, including 7 cases (17.50%) of minor complications and 3 cases of (7.50%) serious complications (2 cases of delayed perforation and 1 case of stent displacement). The average age of patients in the complication group was significantly above that of the non-complication group[(79.50±11.79)y vs. (67.17±13.66)y, P=0.015]. The duration of obstruction in the complication group was significantly longer than that in the non-complication group[(15.40±11.19)d vs. (8.20±8.13)d, P=0.034]. The incidence of complete intestinal obstruction in the complication group was significantly higher than that in the non-complication group (60.00% vs. 16.67%, P=0.025). More cases showed complete lumen occlusion in the complication group than in the non-complication group (P=0.025).Conclusions This study shows that the self-expanded metal stent is safe and effective for relieving obstruction in patients with malignant colorectal cancer. However, clinicians need to be vigilant against postoperative complications such as infection and perforation among patients of advanced age or with chronic obstruction or complete intestinal obstruction.
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Received: 30 April 2020
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2020, Vol. 31 
