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通常人们总是把‘中风’的发生和高血压联系起来,这是因为中风病人中,约有80%左右患有高血压或有高血压病史。但临床上也常常遇到血压不高,也没有高血压病史,却突然发生‘中风’的老人。这是什么原因呢?从病理学上分析,‘中风’可分为两类。一类主要是由于高血压病引起的脑血管破裂出血,称‘出血性中风’,如脑出血、蛛网膜下腔出血等;另一类主要是脑动脉粥样硬化引起的中风,称‘缺血性中风’,如脑血拴形成、脑栓塞等。据临床统计,缺血性中风约占中风的60%。它既可发生在高血压并伴有动脉粥样硬化的病人身上,也可发生在仅有动脉粥样硬化而血压不高的人身上。
People often associate the onset of stroke with high blood pressure because about 80% of stroke patients have a history of hypertension or hypertension. However, clinical often encountered high blood pressure, there is no history of hypertension, but suddenly a ’stroke’ of the elderly. What is the reason? From the pathological analysis, ’stroke’ can be divided into two categories. One is mainly due to hypertension caused by cerebrovascular rupture of hemorrhage, called ’hemorrhagic stroke’, such as cerebral hemorrhage, subarachnoid hemorrhage, etc .; the other is mainly cerebral atherosclerosis caused by stroke, said ’missing Bloody stroke ’, such as cerebral blood vessels tied to the formation of cerebral embolism. According to clinical statistics, ischemic stroke accounts for about 60% of strokes. It can occur in patients with hypertension and atherosclerosis, but also in people with atherosclerosis and low blood pressure.