Clinical Analysis of Spontaneous Thalamic Hemorrhage

Kim, Young; Chae, Kwon Byung; Park, Chong Oon; Ha, Young Soo

Abstract

Forty eight cases of spontaneous thalamic hemorrhage diagnosed by brain CT scan, were analyzed clinically. The age incidence was highest in the 6th decade. We have classified the thalamic hemorrhage by location of hematoma and arterial blood supply. The anteromedial types were 12 cases(25%) and the posterolateral types were 14 cases(29%), the superomedial types were 10cases(21%), the posteromedial types were 5cases(10%), the globe types were 7cases(15%). The sites of hemorrhage were highest in the thalamogeniculate artery territories. In the aspect of clinical symptoms, ocular signs were more common in the posteromedial and the globe type. Motor weakness and sensory symptoms were developed in the all types, almostly. Speech involvements were developed in 14% of Lt.side thalamic hemorrhages. Mental symptoms(confusion, disorientation) appeared in the large amount of hemorrhage exclusively. The mortality rate was 10.4%. Prognosis was correlated with the extent of involvement and the amount of hematoma, not the location.