Hydrocephalus in Ruptured Intracranial Aneurysm

ABSTRACT

Authors analysed 74 cases of hydrocephalus which developed as a sequela of the ruptured intracranial aneurysm for the incidence correlated to the site of aneurysm and the detection time of hydrocephalus. We also studied the outcome of hydrocephalus following the aneurysm surgery. Correlations between the frequency of hydrocephalus and the intracerebral hematoma, the vasospasm, and the number of bleeding were attempted. Followings are the results: 1) Of the 207 cases of ruptured aneurysms, the incidence of hydrocephalus was 35.8%. Most common site of aneurysm associated with hydrocephalus was vertebrobasilar, internal carotid, middle cerebral, and anterior communicating artery in turn. 2) Of the 74 cases hydrocephalus after the ruptured aneurysm, the incidence of hydrocephalus which was persistent in spite of aneurysm surgery was 11.1% of cases. 3) It has shown that 89% of hydrocephalic cases were recoverd after the aneurysm surgery. 4) Hydrocephalus was detected after aneurysm surgery in 8% of cases who had no evidence of ventricular dilatation preoperatively. 5) The hydrocephalus was frequently detected from 2 to 4 weeks after hemorrhage from the intracranial aneurysm although it was not uncommon to find hydrocephalus in a week. 6) The hydrocephalus developed after aneurysm surgery was frequently found 3 to 4 weeks post-operatively. 7) Repeated hemorrhage and incidence of hydrocephalus, a sequela of the ruptured intracranial aneurysm was not closely related.