Goel A
Department of Neurosurgery, K.E.M. Hospital, Parel, Bombay, India.
Br J Neurosurg. 1993;7(4):395-9. doi: 10.3109/02688699309103494.
Some degree of hydrocephalus is present in almost all cases of medium to large posterior fossa tumours. The initial symptoms in such cases are usually due to the hydrocephalus and the consequent increased supratentorial pressure, and more often precede the symptoms primarily due to the local invasion and compression of the brain stem and cerebellum by a significant length of time. In our experience, based on 62 posterior fossa tumour operations, insertion of a cerebrospinal fluid (CSF) diverting shunt because of hydrocephalus makes the subsequent tumour excision more difficult and hazardous. The various problems presumed to be related to preoperative shunt surgery are discussed in this report. It is concluded that preoperative shunts for posterior fossa tumours are rarely indicated.
几乎所有中大型后颅窝肿瘤病例都存在一定程度的脑积水。此类病例的初始症状通常归因于脑积水以及随之而来的幕上压力升高，而且这些症状往往比主要由脑干和小脑局部侵犯及受压所致的症状早出现相当长一段时间。根据我们对62例后颅窝肿瘤手术的经验，因脑积水而插入脑脊液（CSF）分流管会使后续的肿瘤切除更加困难且危险。本报告讨论了各种推测与术前分流手术相关的问题。得出的结论是，后颅窝肿瘤很少需要进行术前分流。
