[Neurologic manifestations of subarachnoid and parenchymatous hemorrhages caused by arterial aneurysm].

Overall 155 patients with subarachnoidal and parenchymatous hemorrhages from arterial aneurysms, mainly of the anterior part of the circle of Willis, were examined. The intensity of subarachnoidal and parenchymatous hemorrhages varied, with the ++diencephalo-hypothalamic area being largely involved. The volume of intraparenchymatous hemorrhages ranged from 10 to 90 ml. Massive basal SAH was accompanied, in a number of cases, by blood congestion in the fourth ventricle. Correlations were established between the gravity of the health status, clinical cerebral decompensation, and the intensity of hemorrhage to the basal subarachnoidal space and cerebral parenchyma. Three variants of clinical decompensation of the brain were revealed: it ran a torpid course in the majority of cases (64%), it increased dramatically in every fourth patient, and gradually regressed in every 10th patient.