Risk Factors For Post-traumatic Hydrocephalus After Unilateral Decompressive Craniectomy In Traumatic Brain Injury

Objective To identify the risk factors for the development of post-traumatic hydrocephalus after unilateral decompressive craniectomy in patients with moderate to severe traumatic brain injury.Methods A retrospective analysis was conducted for 138 patients with moderate to severe craniocerebral trauma with unilateral decompression craniectomy in ningxia medical university general hospital between April 2016 and March 2019.According to the diagnostic criteria of post-traumatic hydrocephalus,the patients were divided into PTH group and non-PTH group within 6 months.Age,midline shift and area of craniectomy were measured by two-sample t test.Gender,cause of TBI,GCS scores,SDH,contusion,SAH,IVH,cistern compression,distance of superior margin of the craniectomy to midline,poster cerebral infarction,subdural hygroma,time of cranioplasty and CSF infection were measured by Chi-square test.what is more,the multivariable logistic regression analysis were performed to identify the risk factors related to the PTH.Results Age,gender,cause of TBI,SDH,contusion,SAH and distance of superior margin of the craniectomy to midline were not associated with PTH.The multivariable logistic regression analysis results indicated that the independent risk factors of PTH included IVH,area of craniectomy and interhemispheric subdural hygroma.Conclusion The area of craniectomy,intraventricular hemorrhage and interhemispheric subdural hygroma are independent risk factors of PTH after DC.The doctors should beobserve closely and take measures to reduce the incidence of PTH.