OBJECTIVE: We retrospectively evaluated the presence of @entity510 and the development of symptomatic @entity2553 in 125 @entity1 who had early surgical treatment of a @entity1756 . SUBJECTS AND METHODS: We studied 16 @entity1 (aged 35-86 years; mean, 58.7 years) who underwent surgery 0 to 6 days (mean, 2.1 days) and then manifested symptomatic @entity2553 on day 5-12 (mean, day 7.4), and 57 @entity1 (aged 13-79 years; mean, 52.0 years) who underwent surgery 0-8 (mean, day 2.9) and did not manifest symptomatic @entity2553 . The volume and location of @entity510 were evaluated with computed tomographic (CT) scanning. @entity2806 was evaluated clinically and also in eight @entity1 , by measurement of cerebral blood flow (CBF) using xenon-enhanced CT. Angiographic evaluation was performed only on one @entity1 . RESULTS: Of the 16 @entity1 with symptomatic @entity2553 , the @entity510 were localized, distributed thickly, or associated with intracerebral @entity1410 in 15 and thin in 1 at the time of admission. Fifteen @entity1 had CT evidence of a @entity510 during @entity2553 . Most of the clots were near the @entity1756 , but in three cases, clots were located in the remote cisterns, which were not accessible operatively. The clinical manifestations of @entity2553 in these three @entity1 correlated with the site of the clot. CBF was reduced in the territory of the involved artery in all eight @entity1 in whom it was measured. In two of the eight cases, the reduction occurred in the territory of a contralateral artery. In contrast, in the 57 @entity1 without symptomatic @entity2553 , the @entity510 were already gone or disappeared soon after surgery in most @entity1 . CONCLUSIONS: The continued presence of @entity510 is an important risk factor for symptomatic @entity2553 after the rupture of a @entity438 . The clot is not always located near the @entity1756 , and the clinical course may be unpredictable.

Postoperative subarachnoid clots and the pattern of @entity2806 associated with symptomatic XXXX .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity2806 :: ('MESH:D002545', 'Disease') :: ['Cerebral ischemia'] @entity510 :: ('MESH:D013345', 'Disease') :: ['subarachnoid clot', 'subarachnoid clots'] @entity438 :: ('MESH:D002532', 'Disease') :: ['cerebral aneurysm'] @entity1410 :: ('MESH:D006406', 'Disease') :: ['hematomas'] @entity2553 :: ('MESH:D020301', 'Disease') :: ['vasospasm'] @entity1756 :: ('MESH:D017542', 'Disease') :: ['ruptured aneurysms', 'ruptured cerebral aneurysm', 'ruptured aneurysm']
@entity2553 :: (MESH:D020301,Disease) :: ['vasospasm']
