老年人意识障碍的主要原因是脑血管疾患。但是,由于缺氧,高血糖,电解质,酸碱平衡异常等代谢障碍,也常表现为脑血管障礴症状,即老年人代谢性脑病。其发病率也很高,又常漏诊和误诊,以至处理无策。(一)临床特点与鉴别诊断1.意识障碍:除心搏骤停,肺梗塞等急剧发生意识障碍的特殊情况外,一般进展 The main reason for senile disturbance of consciousness is cerebrovascular disease. However, due to hypoxia, hyperglycemia, electrolyte, acid-base balance disorders and other metabolic disorders, often manifested as cerebral vascular barrier symptoms, that is, metabolic encephalopathy in the elderly. Its incidence is also high, often misdiagnosed and misdiagnosed, as well as no solution. (A) of the clinical features and differential diagnosis 1. Consciousness disorders: In addition to sudden cardiac arrest, pulmonary infarction and other special cases of acute disturbance of consciousness, the general progress