Abstract: [Abstract]Objective；To investigate the influencing factors for failures of nonoperative management in adults with blunt splenic injury.Methods；A total of 96 adult patients with blunt splenic injury were selected.According to patient's condition，nonoperative management was performed in 51 patients.According to the treatment was successful or not，they were divided into nonoperative failure group and nonoperation group.Single factor and logistics regression analysis were used to analyze the influence factors of the success of nonoperative treatment.Results；The application rate of nonoperative treatment was 53.1%（51/96），of which the success rate of nonoperative treatment was 76.5%（39/51），while the remaining 23.5%（12/51）patients were converted to surgical treatment.Single factor analysis showed that the main influencing factors of success were ISS score，AAST classification，volume of ascites，the lowest systolic blood pressure，the fastest pulse，the fastest heart rate，the lowest hemoglobin，amount of transferred erythrocyte，hospitalization time and complication rate.Logistics regression analysis revealed that ISS score，AAST classification，volume of ascites，the lowest systolic blood pressure，the fastest pulse，the fastest heart rate，the lowest hemoglobin and amount of transferred erythrocyte were independent factors affecting the success of nonsurgical treatment.Conclusion；The success rate of nonoperative treatment for adult blunt splenic injury is high.Case inclusion must be strict，and the indication of converting to surgical treatment must be strictly mastered.
〖WTHZ〗[Key words]〖WTBZ〗〓adults；〓 blunt splenic injury；〓 nonoperative management；〓 influencing factors

Key words: adults, blunt splenic injury, nonoperative management, influencing factors