颅后窝肿瘤术后早期急性脑积水

目的 分析颅后窝肿瘤术后早期急性脑积水的原因和防治对策。方法 临床资料回顾性分析。结果 该并发症的原因有肿瘤残留，小脑水肿、肿胀，颅内血肿、积液、颅后窝脑脊液通道粘连闭塞。结论 力争全切肿瘤，减少脑组织创伤，严密止血和疏通脑脊液通道，术后早期腰穿及抗脑水肿治疗，出现急性脑积水时先行侧脑室外引流并行病因治疗，必要时行内分流术。

Early Acute Hydrocephalus after Surgery for Posterior Cranial Fossa Tumors

Objectives To analyse the possible causes of acute hydrocephalus occured early after operation for posterior cranial fossa tumors and evaluate the measures for prevention of this complication. Method Clinical data obtained from 13 patients with various posterior cranial fossa tumors were analysed retrospectively. Results Of the 13 cases, 9 underwent total resection and 4 subtotal resection. The pre-operative symptoms of increase in the intracranial pressure were releived soon after operation in all of these patients but it recurred after different period of time. Analysis of the clinical data suggested that, imcomplete removal of tumor, cerebellar edema, post-operative intracranial hematoma or edema, and adhesive or obliterated path-way of cerebral spinal fluid after surgery might all be the possible causes of acute hydrocepnallus. Conclusions In order to minimize the ocurrence of this complication, the authors recommanded the following points as the preventive measures: The tumor should be remored as complete as possible, brain tissures should be well protected and hemostatic procedures should be well done during surgery.