中文摘要：

目的：探讨早期腰大池置管控速引流对降低创伤性脑积水发生率的作用。方法：取80例成人重型颅脑损伤合并蛛网膜下腔出血患者。随机将其分成两组，每组40例。实验组早期（入院24h内）腰大池置管持续控速引流血性脑脊液治疗创伤性蛛网膜下腔出血（tSAH），对照组则1次／d行腰穿放出血性脑脊液，20ml／次～30ml／次。终止引流或腰穿条件：CSF常规中红细胞（RBC）〈100×10^6／L；CSF生化中蛋白（TP）〈0．8g／L。随访1a，观察对比两组脑积水的发生率，从而研究腰大池引流在降低创伤性脑积水发生率的作用。结果：实验组发生脑积水者2例，发生率为5．1％。对照组发生脑积水者8例，发生率为20．5％。实验组脑积水发生率明显低于对照组，统计学分析显示P〈0.05，有统计学意义。结论：腰大池引流对降低创伤性脑积水发生率有显著作用。

英文摘要：

Objective To study the effects of earlier period lumbar cistern drainage in reducing the incidence rate of traumatic hydrocephalus through placed tube in lumbar cistern and control its speed. Methods To take 80 adult gravis type head injury patients with traumatic subarachnoid hemorrhage （tSAH）, devided into two groups trabanted,40 patients each group. Continue to drainage blood cerebrospinal fluie to treat subarachnoid hemorrhage through placed tube in lumbar cistern at earlier period （in 24 hours after hospitalization） and controlled its speed in experiment group. The control group underwent a procedure for lumbar puncture to release the blood cerebrospinal fluie every day,20 ml -30 ml each time. Condition of stopping drainage or lumbar puncture ： CSF convention RBC 〈 100 × 10^6/L; CSF biochemistry TP 〈 0.8 g/L. Follow up visit 1 year, observed and contrasted the incidence rate of traumatic hydrocephalus, and to study the effects of lumbar cistern drainage in reducing the incidence rate of traumatic hydrocephalus. Results 2 patients generated hydrocephalus in experiment group, the incidence rate was 5.1%. 8 patients generated hydrocephalus in control group,the incidence rate was 20.5%. The incidence rate of traumatic hydrocephalus of the experiment group was significantly lower than in the control group （ P 〈 0. 05 ）. Conclusion Lumbar cistern drainage had great effects in reducing the incidence rate of traumatic hydrocephalus.