Abstract:   Objective   To study on the related factors of postoperative complications of duodenal injury.Methods A retrospective review of 72 cases of duodenal injury treated，the patients were divided into early treatment group(39 cases） and control group(33 cases） according to whether the intervention occurred within 24 hours after onset of disease.The patients were divided into the DCS group(35 cases） and the nonDCS group(37 cases） according to whether the operation was planned according to the concept of damage control surgery.The incidence and mortality of postoperative complications like celiac infection，intraperitoneal hemorrhage，multiple organ dysfunction syndrome（MODS） were compared between the two groups.Rusults  The incidence of postoperative complications in the early treatment group was 41.02% and the mortality was 5.12%.In the control group，the incidence of postoperative complications was 75.75% and the mortality was 24.24%.The incidence and mortality of postoperative complications in the early treatment group were lower than those in the control group.The difference between the two groups was statistically significant（P<0.05）.The incidence of postoperative complications in DCS group was 37.14%，the mortality rate was 2.85%.The incidence of postoperative complications in non DCS group was 75.67%，and the mortality rate of 24.32%.The data of DCS group was lower than that of non DCS group（P< 0.05）.Conclusion  Early diagnosis and early surgical intervention and treatment with the concept of injury control surgery can reduce the incidence of postoperative complications and mortality of duodenal injury.

Key words: duodenal injury, early diagnosis, surgical treatment