Clinical manifestations of subarachnoid hemorrhage and significance of vasospasm

Abstract

Subarachnoid hemorrhage is a very common disease. The incidence rate among a large number of residents is about 5-20 per 100,000 people every year. In the Netherlands, for example, it is nearly 10 per 100,000 people. . According to a collaborative research report, the causes of 6,368 cases of subarachnoid hemorrhage were saccular aneurysms in 51%, arteriovenous abnormalities in 6%, and the rest were caused by different diseases or unknown causes. Deaths from this disease in a hospital in Amsterdam One or more aneurysms were found in all cases. Cerebral angiography in recent years shows that the incidence of aneurysms is increasing, reaching a peak in 1969, that is,