Abstract: Objective To compare short-term outcomes between self-expanding metal stents (SEMS) and emergency surgery (ES) for left-sided colonic tumor complicated with acute intestinal obstruction.Methods From January 2022 to December 2024, 37 patients with left-sided colonic tumor complicated with acute intestinal obstruction were admitted to Renmin Hospital of Wuhan University and Xishui County People's Hospital.According to the treatment methods, they were divided into the SEMS group (21 cases) and the ES group (16 cases).The laparoscopic resection rate,defunctioning stoma rate,postoperative complications,and length of postoperative hospital stay were analyzed.Results The SEMS group demonstrated a significantly higher laparoscopic resection rate than the ES group (85.7% vs.12.5%,P<0.05).In addition,the SEMS group exhibited markedly lower rates of stoma creation (4.8% vs.93.7%,P<0.05) and shorter postoperative hospital stays [(9.6±2.7)d vs.(16.0±3.9)d,P<0.05].There was no significant difference in the incidence of postoperative complications (surgical-site infection,pulmonary infection,cardiovascular/cerebrovascular events) between the two groups（P＞0.05）.Conclusion SEMS is used as a "bridging surgery" to treat left-sided colonic tumor complicated with acute intestinal obstruction,which can increases minimally invasive resection rates,reduces the need for stoma,and shortens hospital stay without increasing complications.

Key words: left-sided colonic tumor; intestinal obstruction; self-expanding metal stent; emergency surgery