ObjectiveTo explore the clinical application value of intestinal metal stent implantation via colonoscopy assisted by water injection for acute colorectal cancer obstruction. MethodsClinical data of 163 patients with colorectal cancer complicated with acute malignant intestinal obstruction were retrospectively analyzed, among which 85 patients were enrolled to the research group, who underwent intestinal metal stent implantation via colonoscopy assisted by water injection, whereas 78 patients underwent emergency operation were enrolled to the control group. Those rates of success of intestinal metal stent implantation via colonoscopy assisted by water injection, therapeutic effect, perforation occurrence, elective operation, and success of elective laparoscopic operation in the research group were evaluated. The related operative indicators, incidence of permanent stoma and long-term efficacy were compared between the two groups. ResultsThe rates of success of intestinal metal stent implantation via colonoscopy assisted by water injection, therapeutic effect of obstruction, perforation occurrence, elective operation, and success of elective laparoscopic operation were 82.4%, 75.3%, 4.7%, 75.3%, and 41.2% in the research group. Compare to the control group, the research group yielded lower incidence of permanent stoma after stent implantation (8.2% vs. 19.2%, P＜0.05), shorter hospital stays ［(15.0±3.2) d vs. (28.0±4.3) d, P＜0.05］, and earlier start time of chemotherapy ［(31.0±4.5) d vs. (55.0±6.1) d, P＜0.05］. There were no statistically significant differences in survival time and progression-free survival time between the two groups (all P＞0.05). ConclusionIntestinal metal stent implantation via colonoscopy assisted by water injection for treating acute colorectal cancer obstruction has celerity and convenience of operation, and it is safe, effective, with less complication. Thus it is worthy of further promotion in clinic.

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