[Diagnosis of Alzheimer's disease in Brazil: cognitive and functional evaluation. Recommendations of the Scientific Department of Cognitive Neurology and Aging of the Brazilian Academy of Neurology].

The educational and cultural heterogeneity of the Brazilian population leads to peculiar characteristics regarding the diagnosis of Alzheimer's disease (AD). This consensus had the objective of recommending evidence-based guidelines for the clinical diagnosis of AD in Brazil. Studies on the diagnosis of AD published in Brazil were systematically evaluated in a thorough research of PUBMED and LILACS databases. For global cognitive evaluation, the Mini-Mental State Examination was recommended; for memory evaluation: delayed recall subtest of CERAD or of objects presented as drawings; attention: trail-making or digit-span; language: Boston naming, naming test from ADAS-Cog or NEUROPSI; executive functions: verbal fluency or clock-drawing; conceptualization and abstraction: similarities from CAMDEX or NEUROPSI; construction: drawings from CERAD. For functional evaluation, IQCODE, or Pfeffer Questionnaire or Bayer Scale for Activities of Daily Living was recommended. The panel concluded that the combined use of cognitive and functional evaluation based on interview with informant is recommended.