Old Age Dementias: Factors Associated with Dementia Progression Rate. Part 2

Abstract

Background: steady progression of dementia is characterized with various rates, which specified clinical differentiation of dementias with rapid and slow increase of cognitive decline severity. The search for clinical factors, hypothetically responsible for differences in late age dementia progression rate, is one of the aspects of investigation of late age dementias.The objectivewas to generalize the results of the study of separate clinical factors effect on the differences in the late age dementia progression rate.Material and methods: papers in MEDLINE/PubMed bases from 1990 to 2020 were selected and analyzed according to the key words: “late age”, “dementia”, “progression rate”, “age of onset”, “non-cognitive disorders”, “nosomodifying therapy”, as well as relevant papers in the literature of the analyzed works.Conclusion: various parameters of the disease were studied as associated with dementia progression pattern. As regards part of them the results achieved compliance in recognition of association with dementia progression rate. As for the others this evidence is ambiguous. There are large discrepancies in attitudes to gender differences, while early age of disease onset, initially great intensity of neuropsychiatric disorders are concordantly admitted as associated with dementia rapid progression. The researchers are united with steady idea of nonlinear character of dementia progression at the stages of mild, moderate and severe dementia.The resultsof study of comorbidity are basically similar with regard to recognition of SFD influence, first of all, of arterial hypertension on dementia progression rate. The evidence of the efficacy of nosomodifying therapy, decelerating dementia progression, is unanimously considered an urgent problem. The development of new dementia pathogenesis concepts and the search for new therapy targets, are conducive to the solution of this problem. The results of the investigated direction of studies confirm the hypothesis of the fact that dementia progression occurs according to various pathogenetic mechanisms, which determine the dementia increasing rate. The management of patients with dementia in practice presupposes taking into account of various factors, influencing dementia progression rate, for planning of the volume and character of medical care.