Neurochirurgie
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Among 250 patients consecutively admitted in our center with a ruptured intracranial aneurysm, 66 patients (24.4%) were initially classified in Hunt and Hess clinical grade IV (37 cases) or grade V (29 cases). All patients were studied as following: --The severity of subarachnoid haemorrhage was evaluated on the pre-operative C. T. scan using Fisher's criteria. ⋯ According to the initial clinical grade, the initial C. T. scan findings, the eventual post-operative angiographic presence of an arterial thrombosis or vasospasm, it was obvious that the final bad outcome was mainly related to the severity of the initial haemorrhage. However, in 7 patients, post-operative disability or death can be explained by other complications, principally an arterial thrombosis.(ABSTRACT TRUNCATED AT 250 WORDS)