Incidence of progressive hemorrhagic injury after traumatic brain injury and its risk factors analysis

Objective To investigate the incidence of progressive hemorrhagic injury after traumatic brain injury and analyze its risk factors.Methods 168 cases of traumatic brain injury patients admitted in our hospital from June 2009 to June 2011 were retrospectively analyzed.The age,gender,hospital stay,GCS score when admitted in hospital,subarachnoid hemorrhage,median line shifting,the shape of cisterna ambiens,mydriasis,emergency surgery,the first CT scanning time,the Injury Severity Score,APACHEⅡscores,etc.The incidence of progressive hemorrhagic injury after traumatic brain injury was calculated.The risk factors were determined by non-conditional multivariate Logistic regression analysis.Results The progressive hemorrhagic injury after traumatic brain injury was happened in 63 cases (37.5%).The multivariate Logistic regression analysis demon-strated that subarachnoid hemorrhage (OR=12.421,95% CI=1.263～42.715,P=0.001) and the first CT scanning time (OR=0.421,95% CI=0.263～ 0.715,P=0.002) are the independent risk factors of the progressive hemorrhagic injury after traumatic brain injury.Conclusion The incidence of progressive hemorrhagic injury after traumatic brain injury is high.The subarachnoid hemorrhage and the first CT scanning time are the independent risk factors of the progressive hemorrhagic injury after traumatic brain injury.