One hundred and seventy cases of cerebrovscular accidents admitted to Chosun University hospital were studied clinically over a period of 5 years, from April 1971 to March 1976, and following results were obtained.
1. The percentage of cerebrovascular accidens(170 cases) to the total admitted to medical ward(4182 cases) during the same period was 4. 1% and the ratio of male to female was 1.5 = 1.
2. Of the 170 cases of cerebrovascular accidents, cerebral hemorrhage were 67 cases (39.4%), cerebral thrombosis 68 cases(40.0%), cerebral embolism 15 cases (8.8%) and subarachnoid hemorrhage 20 cases (11. 8%).
3. The peak incidence was in 6th decade, in both cerebral hemorrhage and subarachnoid hemorrhage, 7th decade in cerebral thrombosis, wereas 4th decade in cerebral embolism.
4. Among the preexisting diseases of cerebrovascular accidents, hypertension was present in 91.4% of cerebral hemorrhage, 90. 3% of cerebral thrombosis, 73. 3% of subarachachnoid hemorrhage and valvular heart disease was present in 53.3% of cerebral embolism,
5. The most freouent precipitating factor in cerebral hemorrhage .and subarachnoid hemorrhage was emotional stress, whereas in cerebral embolism and cerebral thrombosis, it was sleeping.
6. Among the symptoms and signs, headache was noted in 26.9% of cerebral hemorrhage, 34.3%o of cerebral thrombosis, 70.0% of subarachnoid hemorrhage and 13.3% of cerebral embolism whereas paralysis or paresis was present 62.7% of cerebral hemorrhage, 50.8% of cerebral thrombosis, 33.3% of cerebral embolism and 15.0% of subarachnoid hemorrhage.
7. The mortality rate during admission was 31. 8% in total, 50.7% in cercbral hemorrhage, 13.2% in cerebral thrombosis, 30.0% in subarachnoid hemorrhage and 33.3% in cerebral embolism.
8. The ominous features influencing the prognosis were leukocytosis over 1200/mm´ and elevation of -body temperature over 39C.´
9. Contray to the general conception that the earlier evacuation time, with better prognosis, the earlier evacuation in rural area seemed to be f ollowed by poorer prognosis because of inadequate prehospital management and poor road condition and lack of ambulance service, which should be clarified by further controlled studies.
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