[Follow-up results of microsurgery of intracranial aneurysms (author's transl)].

In the past 7 years, 403 cases of intracranial aneurysms were submitted to microsurgical operations. The operative mortality was 5.4%, and in the follow-up, 82.4% are working, 6.2% are caring for self and 5.9% are either bed-ridden or dead from other causes after discharge. If 6 cases of Grade V are excluded from the statistics and the day of subarachnoid hemorrhage (SAH) is counted as the 1st day, cases submitted to microsurgery on the 1st, the 2nd and the 3rd days showed no mortality and 72.7% of them are working in the follow-up. Cases undergone micro-surgery on the 4th through the 8th day showed a high mortality of 15.2% due to postoperative vasospasm, whereas in cases submitted to micro-surgery in the 2nd week after SAH the operative mortality was 6% and in cases submitted to micro-surgery later than the 2nd week it was 3%. In the follow-up 84% and 85.6% are working in the latter two respectively. These results seem to encourage ultra-early surgery for ruptured aneurysm cases. However, one should always bear in mind that the acute stage of SAH should be regarded as a "systemic disease", not as a "local disease", and only those who have ability and facility to manage this systemic disease may be qualified to perform early surgery for ruptured aneurysms.