摘要目的:探讨超长皮下隧道脑室外引流术在脑积水患者中的临床应用价值。方法:回顾性分析广东三九脑科医院神经外一科自2016年3月至2020年3月采用超长皮下隧道脑室外引流术治疗的33例不适宜行脑室腹腔分流术的，或者预计脑室外引流时间大于7 d的，或者脑室外引流时间已达7 d并预计再引流7 d仍不能拔管的，或是脑室腹腔分流术后感染的脑积水患者的疗效。结果:33例患者中，引流管最长留置24个月，最短13 d，平均69.3 d；引流时间大于14 d者有32例(97%)；术后无一例继发颅内感染。结论:超长皮下隧道脑室外引流术留置引流管的时间长，避免了多次引流及继发颅内感染风险，是一种安全有效的脑积水治疗新技术。

abstractsObjective:To explore the clinical value of extra-long subcutaneous tunnel ventricular drainage in patients with hydrocephalus.Methods:From March 2016 to March 2020, 33 patients who were not suitable for ventriculoperitoneal shunt, who would have expected time of external ventricular drainage longer than 7 d, who had external ventricular drainage reaching for 7 d and still could not expect for drainage tube drawing for the next 7 d, or who had hydrocephalus after external ventricular drainage were chosen in our study. These patients accepted extra-long subcutaneous tunnel ventricular drainage. The curative effects in the patients were analyzed retrospectively.Results:The drainage tube was kept for a maximum of 24 months and the shortest time was 13 d, with average of 69.3 d; 32 patients (97%) had drainage time longer than 14 d. There was no secondary infection after operation.Conclusion:Extra-long subcutaneous tunnel extraventricular drainage tube has a long duration of catheter placement, could avoid multiple drainage and secondary intracranial infection, so it is a safe and effective new technology for hydrocephalus.