title: Risk factors related to hydrocephalus after traumatic subarachnoid hemorrhage.
abstract: BACKGROUND
  Posttraumatic hydrocephalus is a common complication of head injury. However, hydrocephalus after tSAH has seldom been addressed. We present this clinical study to determine the incidence of hydrocephalus and analyze the risk factors for developing hydrocephalus in patients with tSAH.
  
  
  METHODS
  A consecutive series of 301 patients with tSAH were retrospectively reviewed to determine the effects of the admission GCS score, age, sex, decompressive craniectomy, intraventricular hemorrhage, and features of tSAH (according to the initial computerized tomography scans) on the development of hydrocephalus. Risk factors for hydrocephalus were evaluated by using logistic regression analysis.
  
  
  RESULTS
  Of the 301 patients, hydrocephalus was observed in 36 (11.96%). Increasing age (P< .05), intraventricular hemorrhage (P< .05), and thickness (P< .01) or distribution (P< .05) of tSAH were significantly associated with the development of hydrocephalus. No relationship was found between hydrocephalus and sex, admission GCS score, location of tSAH, or decompressive craniectomy.
  
  
  CONCLUSIONS
  Hydrocephalus frequently occurs in patients with tSAH. Increasing age, low GCS score on admission, intraventricular hemorrhage, and severe SAH could be risk factors for facilitating the development of hydrocephalus.
authors: Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.
authors: Heng-Li
authors: HL
authors: Tian
authors: Tao
authors: T
authors: Xu
authors: Jin
authors: J
authors: Hu
authors: Yu-hui
authors: YH
authors: Cui
authors: Hao
authors: H
authors: Chen
authors: Liang-Fu
authors: LF
authors: Zhou
mesh_terms: D000368:Aged; D019299:Decompression, Surgical / Q000379:methods; D005260:Female; D015600:Glasgow Coma Scale; D006801:Humans; D006849:Hydrocephalus / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012307:Risk Factors; D020206:Subarachnoid Hemorrhage, Traumatic / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D013997:Time Factors; D014057:Tomography, X-Ray Computed