Vassilouthis J, Richardson A E
J Neurosurg. 1979 Sep;51(3):341-51. doi: 10.3171/jns.1979.51.3.0341.
Ventricular dilatation following spontaneous subarachnoid hemorrhage (SAH) is a well recognized phenomenon. Its clinical significance, however, remains controversial. Two phases are distinguished, the acute or early, occurring soon after the ictus, and the chronic or late, developing after the second week. The authors studied the ventricular size in 210 patients with spontaneous SAH through the course of their illness and convalescence by means of serial computerized tomography (CT) scans. Their findings suggest that ventricular dilatation soon after SAH is not always clinically significant and does not necessarily require shunting before definitive surgery. Delayed symptomatic ventricular enlargement (communicating hydrocephalus) occurs in 7% of the patients and can be safely diagnosed on the basis of the clinical picture and CT scan appearances. Treatment with a ventricular shunting system is almost invariably rewarding.
自发性蛛网膜下腔出血（SAH）后出现脑室扩张是一种广为人知的现象。然而，其临床意义仍存在争议。可分为两个阶段，急性或早期阶段，在发病后不久出现；慢性或晚期阶段，在第二周后发展而来。作者通过系列计算机断层扫描（CT），研究了210例自发性SAH患者在疾病过程和康复期间的脑室大小。他们的研究结果表明，SAH后不久出现的脑室扩张并不总是具有临床意义，在确定性手术前不一定需要进行分流。7%的患者会出现延迟性症状性脑室扩大（交通性脑积水），根据临床表现和CT扫描表现可安全诊断。使用脑室分流系统进行治疗几乎总是有效的。
