The article deals with the important issue of diagnosis and treatment of Alzheimer's disease in the elderly and senile age. Despite the fact that this disease is considered, of course, age-associated pathology, which is the main cause of senile dementia, its diagnosis in Russia is exhibited rather rarely compared with dementia, for example, of vascular origin. This is due, in the author's opinion, not only with the difficulties of in-vivo diagnosis of Alzheimer's disease, but, first of all, with the characteristic of the elderly and senile multiplicity of pathological processes. A significant part of these pathologic processes, as well as Alzheimer's disease, can cause increasing cognitive disorders. Under this condition, dementia is already considered as a multi-factorial disease even in cases where Alzheimer's disease is the leading factor. This position, in turn, requires the expansion of the diagnostic search even in cases of full confidence in the diagnosis of Alzheimer's disease in the elderly and senile age to determine the possible role of other pathological processes in the formation and development of dementia. Ultimately, with limited opportunities for treatment of Alzheimer's disease, this will help in the selection of treatment methods aimed at reducing the role of other etiological and pathogenic moments in the development of dementia of mixed Genesis in the elderly and senile.
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