Efficacy of self-expanding metal stent placement for gastric outlet obstruction caused by an unresectable malignant tumor

Gastric outlet obstruction (GOO) is a late complication of advanced and metastatic malignant tumors. Self-expanding metal stent (SEMS) placement is a safe and effective palliative treatment for patients with GOO. In general, the median survival time after SEMS placement for GOO is approximately 100 days. Eight patients with symptomatic malignant GOO were treated by SEMS placement in our hospital. Surgical bypass could not be performed due to severe advanced malignant tumors. We estimated the gastric outlet obstruction scoring system (GOOSS) as the main outcomes. We performed SEMS placement using endoscopy and got success in all cases. No complications occurred after the procedure. Our study findings indicate that SEMS placement is a safe and effective method for managing malignant GOO.