INTRODUCTION: @entity510 is a disorder commonly seen as a @entity16 , with an incidence of 11-19/100,000 @entity1 ; 12% of the @entity1 die without seeking medical attention, 63% die during the first year and 72% during the first five years. OBJECTIVE: To describe the epidemiological, clinical and prognostic factors of @entity510 . @entity1 AND METHODS: We made a retrospective study of the cases of primary @entity510 occurring in the province of Segovia between January 1993 and November 1997. The @entity1 presented with a clinical history compatible with @entity510 which was confirmed by cranial CT and/or lumbar puncture. Angiography of the supra-aortic trunks was done to detect @entity1462 . The @entity1 were classified according to clinical grades on the criteria of Hunt and Hess. RESULTS: There were 54 primary @entity510 (29 @entity1 and 25 @entity1 ); the average age was 59 years. The average annual incidence was 7/100,000 @entity1 ; 59% were at Hunt and Hess stage I-II. @entity10 was the presenting symptom in 67% of the @entity1 . The @entity1 with normal CT scans (20%) were of lower clinical grade and consulted later; 4% had further bleeding and all these died. There were associated @entity16 in 46% and systemic complications in 28%. Of the 44 arteriographies done, in 14 there were positive findings, 11 @entity439 (five were embolized and five treated surgically), and three @entity2758 (two treated surgically). On discharge 7% had severe @entity16 . Mortality during the acute phase was 13%. CONCLUSIONS: @entity510 is still a serious condition, with a high rate of mortality during the acute phase (13%) and of sequelae (20%). The clinical grade and cranial CT findings were the main factors in prognosis.

[Epidemiological, clinical and prognostic aspects of XXXX in Segovia].

@entity1 :: ('9606', 'Species') :: ['women', 'patients', 'PATIENTS', 'persons', 'men'] @entity2758 :: ('MESH:D001165', 'Disease') :: ['arteriovenous malformations'] @entity510 :: ('MESH:D013345', 'Disease') :: ['subarachnoid hemorrhages', 'Subarachnoid hemorrhage', 'subarachnoid hemorrhage'] @entity16 :: ('MESH:D009422', 'Disease') :: ['neurological sequelae', 'neurological complications', 'neurological emergency'] @entity439 :: ('MESH:D000783', 'Disease') :: ['aneurysms'] @entity10 :: ('MESH:D006261', 'Disease') :: ['Headache'] @entity1462 :: ('MESH:D054079', 'Disease') :: ['vascular malformations']
@entity510 :: (MESH:D013345,Disease) :: ['subarachnoid hemorrhage']
