BackgroundQuality of life (QoL) is a key component in decisionâmaking for surgical palliation, but QoL data in association with surgical palliation in advanced gastric cancer are scarce. The aim of this multicentre observational study was to examine the impact of surgical palliation on QoL in advanced gastric cancer.MethodsThe study included patients with gastric outlet obstruction caused by incurable advanced primary gastric cancer who had no oral intake or liquid intake only. Patients underwent palliative distal/total gastrectomy or bypass surgery at the physician's discretion. The primary endpoint was change in QoL assessed at baseline, 14âdays, 1âmonth and 3âmonths following surgical palliation by means of the EuroQoL Five Dimensions (EQâ5Dâą) questionnaire and the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire gastric cancer module (QLQâSTO22). Secondary endpoints were postoperative improvement in oral intake and surgical complications.ResultsSome 104 patients (23 distal gastrectomy, 9 total gastrectomy, 70 gastrojejunostomy, 2 exploratory laparotomy) were enrolled from 35 institutions. The mean EQâ5Dâą utility index scores remained consistent, with a baseline score of 0·74 and the change from baseline within ±â0·05. Gastricâspecific symptoms showed statistically significant improvement from baseline. The majority of patients were able to eat solid food 2âweeks after surgery and tolerated it thereafter. The rate of overall morbidity of grade III or more according to the ClavienâDindo classification was 9·6 per cent (10 patients) and the 30âday postoperative mortality rate was 1·9 per cent (2 patients).ConclusionIn patients with gastric outlet obstruction caused by advanced gastric cancer, surgical palliation maintained QoL while improving solid food intake, with acceptable morbidity for at least the first 3âmonths after surgery. Registration number 000023494 (UMIN Clinical Trials Registry).