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痴呆是指意识清楚情况下脑部后天获得的器质性病变所致的持久性智能衰退,以致影响个体的社交、行为、职业和经济活动的一组综合征,判断痴呆的智能指包括语言、记忆、视空间技能、性能、情感、人格及认识功能。目前,痴呆已成为世界人口主要死亡原因之一,65岁以上人群5%有严重痴呆,10%为轻-中度痴呆,预计在2050年痴呆的发病率将增长3倍,因此需要引起临床足够重视。痴呆可由60多种疾病所致,Alxheimer型痴呆约占50-60%,脑血管病所致的痴呆占10-20%,脑瘤所致的痴呆占4-5%;此外痴呆还可由神经变性病、感染(包括神经梅毒)、中毒、代谢病和血管炎等所致。最近发现爱滋病(AIDS)病毒也是痴呆的病因之一。但仍有5%的痴呆
Dementia refers to a set of syndromes that affect the individual’s social, behavioral, occupational and economic activities, and the intelligent means of judging dementia include language, Memory, visual space skills, performance, emotion, personality and cognitive functions. Currently, dementia has become one of the leading causes of death in the world’s population, with 5% of people over the age of 65 having severe dementia and 10% being mild to moderate dementia. The incidence of dementia is expected to triple in 2050 and therefore needs to be clinically adequate Pay attention. Alzheimer’s dementia accounts for about 50-60%, dementia caused by cerebrovascular disease accounts for 10-20%, and dementia caused by brain tumor accounts for 4-5%. In addition, dementia can be caused by neuropathy STDs, infections (including neurosyphilis), poisoning, metabolic diseases and vasculitis. The recent discovery of the AIDS virus is one of the causes of dementia. But there is still 5% dementia