Abstract
Memory and other cognitive complaints are common in the elderly population. However, the clinical meaning of these complaints remains controversial. Objectives: The goal of this study was to investigate the association between cognitive complaints and performance on a mental state screening test in elderly patients attended for the first time at the Neurogeriatric and Dementia (NGA) Outpatient Clinic within a major University hospital. Methods: Two hundred patients referred to the NGA Clinic during 2005, 2006 and 2007 first semesters participated in the study. The variables of interest were: (a) source of and reason for referral; (b) whether or not they had previously been evaluated with the screening test (Mini Mental State Exam - MMSE) by their physicians before referral to our specialized clinic; (c) cognitive complaints; and (d) performance on the screening test (MMSE) at the NGA Clinic. Results: The main reason for referral to the NGA clinic was cognitive complaints 63% (N=126), where only 5% (N=10) of the referred patients had been previously evaluated by the cognitive screening test (MMSE or equivalent). Of the 135 patients who presented cognitive complaints during the first appointment, 52 (38%) presented MMSE scores below the education-adjusted cut-off. No association between cognitive complaint and performance on the MMSE during the first evaluation at the NGA Clinic was observed (c²=3.04, p=0.1). Conclusions: Although cognitive complaints among elders should not be disregarded, the mental state screening evaluation is crucial for the detection of clinically significant cognitive impairment.
Key words:
cognitive complaint; aging; elderly; Mini Mental State Exam; cognitive decline associated with aging; dementia; depression; memory
Resumo
Memória e outras queixas cognitivas são comuns na população idosa. No entanto, o significado clínico destas queixas permanece controverso. Objetivo: O objetivo deste estudo foi investigar a associação entre queixa cognitiva e desempenho em um teste de rastreio do estado mental em pacientes idosos que consultavam pela primeira vez no Ambulatório de Neurogeriatria e Demência (NGA) de um grande hospital universitário. Métodos: Duzentos pacientes que foram encaminhados ao Ambulatório de Neurogeriatria durante os primeiros semestres de 2005, 2006 e 2007 participaram do estudo. As variáveis de interesse foram: (a) fonte e razão do encaminhamento; (b) existência de avaliação, com um teste de rastreio (Mini Exame do Estado Mental - MEEM), pelos seus médicos assistentes prévia ao encaminhamento ao NGA; (c) queixa cognitiva na consulta do NGA, e (d) desempenho no teste de rastreio (MEEM) no Ambulatório NGA. Resultados: O principal motivo de encaminhamento ao ambulatório de NGA foi queixa cognitiva 63% (N=126), somente 5% (N=10) dos pacientes encaminhados foram submetidos a algum teste de rastreio cognitivo prévio (MEEM ou equivalente). Dos 135 pacientes com queixa cognitiva durante a primeira avaliação, 52 (38%) apresentavam escores do MEEM abaixo do ponto de corte, ajustados para escolaridade. Nenhuma associação entre queixa cognitiva e desempenho no MEEM durante a primeira avaliação no ambulatório de NGA foi observada (c²=3.04, p=0.1). Conclusões: Embora, queixas cognitivas entre idosos não devem ser ignoradas, avaliação, através de rastreio do estado mental, é crucial para detecção de comprometimento cognitivo clinicamente significativo.
Palavras-chaves:
queixa cognitiva; envelhecimento; idoso; Mini Exame do Estado Mental; declínio cognitivo associado ao envelhecimento; demência; depressão; memória
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Publication Dates
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Publication in this collection
Jan-Mar 2008
History
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Received
21 Jan 2008 -
Reviewed
09 Feb 2008 -
Accepted
19 Feb 2008