Forty one of 52 patients in group 1 [Table I] were in the third to sixth decade of life (mean age- 40.5 years). There were 30 male patients. At the time of admission, 15 patients were in grade I, 26 in grade II, 7 in grade III and 4 in grade IV. Twenty one patients were admitted within 3 days of lctus, and 35 patients within 1 week of ictus. Seven patients were admitted in the second week and 10 after 14 days of ictus. Forty patients presented with one ictus where as twelve patients had more than one ictus prior to admission. There were 61 aneurysms in these 52 patients [Table II]. Eight patients harboured multiple aneurysms (2 aneurysms in 7 patients and 3 aneurysms in 1 patient). Seven of these patients had bilateral aneurysms. There were 6 giant aneurysms.