| Objective: to study the factors influencing the detection rate of DSA in abdominal and pelvic examinations of multiple injuries,so as to improve the positive rate of DSA and determine more accurately who DSA is more practical for,and provide a reference for the clinical diagnosis and treatment process.Methods: patients who underwent interventional examination and treatment for hemodynamic instability caused by multiple injuries in our hospital on January 1,2014 and December 31,2017 were searched.Relevant data of patients who met the requirements were screened according to the research objectives and inclusion and exclusion criteria.Data to IBM SPSS statistical software 20 version,counter variable adoption rate,continuous variables using x?±s,the rate compared with χ2 test,comparison between groups using t test.P<0.05 was used as the standard for statistically significant difference in results.Results: A total of 47 patients with DSA who met the requirements in our hospital on January 1,2014,solstice and December 31,2017 were retrieved.After chi-square test or independent sample t-test,it was found that age,gender,time from injury to admission,time from injury to intervention,FFP amount before DSA transfusion,coagulation function,ISS score,AIS score were not significantly correlated with positive DSA(P>0.05),while CRBC amount before DSA transfusion was significantly correlated with positive DSA result(P<0.05).The bleeding area(peritoneal interposition and intraperitoneal or retroperitoneal)was significantly correlated with the negative and positive DSA results(P<0.05),and the positive DSA rate of non-retroperitoneal hemorrhage(intraperitoneal and intraperitoneal organ hemorrhage)was 88.20%.The positive rate of pelvic bleeding caused by pelvic fracture was 18.75%.Conclusion: the CRBC before DSA transfusion can be used as a positive indicator of DSA detection in the peritoneal and pelvic area of multiple injuries,and can be used as a possible indicator of persistent bleeding.The detection rate of intraperitoneal and interperitoneal hemorrhage was higher than that of retroperitoneal hemorrhage.The detection rate of pelvic bleeding caused by pelvic fracture is low. |