The relationship between level of consciousness and laterality of cerebral lesions in acute cerebral hemorrhage

• Published in: Japanese Journal of Stroke Vol. 12; no. 1; pp. 26 - 32
• Main Authors: Kinugawa, Hidekazu, Sawada, Tohru, Kaneko, Takazi, Kuriyama, Yoshihiro, Inoue, Noriko
• Format: Journal Article
• Language: Japanese
• Published: The Japan Stroke Society 1990
• Subjects: cerebral dominance; consciousness disturbance; cortical hemorrhage; putaminal hemorrhage; thalamic hemorrhage
• DOI: 10.3995/jstroke.12.26
• ISSN: 0912-0726

We examined the relationship between occurrence of consciosness disturbance and laterality of cerebral lesions in 144 acute putaminal hemorrhages, 127 acute thalamic hemorrhages and 35 acute cortical hemorrhages. Result were as follows : 1) there are no significant differences in size of hematomas between the left and the right cerebral hemispheres in all groups. 2) in putaminal hemorrhages, the grade of consciousness disturbance was mostly moderate, while in thalamic and cortical hemorrhage, consciousness disturbance was rather slight. 3) there was a tendency that moderate or severe disturbances of consciousness occured in left hemispheric lesions in all groups, although no statistical signifficance was obtained. 4) No confirmatory relationship could be found between level of consciousness disturbance and laterality of cerebral lesion in all group even though the size of hematomas was divided into two subgroups (more than the mean size and less than the mean size). 5) In case of previous cerebrovascular history, such a tendency as moderate or severe disturbance of consciousness was more frequent in left hemispheric lesions was observed, but with no statistical significance.