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Behavioral and activities of daily living inventories in the diagnosis of frontotemporal lobar degeneration and Alzheimer's disease

Inventários comportamentais e de atividades de vida diária no diagnóstico de degeneração lobar fronto-temporal e doença de Alzheimer

Abstract

The differential diagnosis between frontotemporal lobar degeneration (FTLD) and Alzheimer's disease (AD) is often challenging.

Objectives:

To verify the usefulness of behavioral and activities of daily living inventories in the differential diagnosis between FTLD and AD.

Methods:

Caregivers of 12 patients with FTLD (nine with frontotemporal dementia, two with semantic dementia and one with progressive non-fluent aphasia) and of 12 patients with probable AD were interviewed. The Brazilian version of the Frontal Behavioral Inventory (FBI) and Disability Assessment for Dementia (DAD ) were used.

Results:

The mean of the MMSE score was 12.4±10.7 for patients with FTLD and 11.9±6.2 for patients with AD (p=0.93). Mean scores on the DAD were 33.7±27.7 in patients with FTLD and 55.6±29.7 in patients with AD (p=0.06), while for the FBI they were 42.6±10.0 for FTLD and 16.7±11.7 for AD (p<0.01).

Conclusions:

In this study, FBI was found to be a helpful tool for the differential diagnosis between FTLD and AD. Although the DAD was not useful in differential diagnosis in our sample we believe it to be important for measuring the severity of the disease through quantitative and qualitative assessment of functional deficits of the patients.

Key words:
dementia; frontotemporal lobar degeneration; Alzheimer's disease; inventories; behavior; activities of daily living

Resumo

O diagnóstico diferencial entre degeneração lobar fronto-temporal (DLFT) e doença de Alzheimer (DA) pode ser difícil em alguns casos.

Objetivos:

Verificar a utilidade de inventários comportamentais e de vida diária no diagnóstico diferencial entre DLFT e DA.

Métodos:

Foram entrevistados os cuidadores de 12 pacientes com DLFT (nove com demência fronto-temporal, dois com demência semântica e um com afasia progressiva não fluente) e de 12 pacientes com DA provável. As versões brasileiras dos questionáros Frontal Behavioral Inventory (FBI) e o Disability Assessment for Dementia (DAD ).

Resultados:

A média da pontuação do MEEM foi 12,4±10,7 para pacientes com DLFT e 11,9±6,2 para pacientes com DA (p=0.93). A média dos escores do DAD foi de 33,7±27,7 para pacientes com DLFT e 55,6±29,7 para pacientes com DA (p=0.06), enquanto que com relação ao FBI a média da pontuação foi de 42,6±10,0 para pacientes com DLFT e 16,7±11,7 para pacientes com DA (p<0.01).

Conclusões:

Neste estudo, o FBI apresentou uma boa acurácia no diagnóstico diferencial entre DFT e DA. Embora o DAD não tenha se mostrado útil no diagnóstico diferencial em nossa amostra, acreditamos que essa escala seja importante para analisar qualitativamente e quantitativamente os déficits funcionais dos pacientes, auxiliando na avaliação da gravidade do quadro demencial.

Palavras-chave:
demência; degeneração lobar fronto-temporal; doença de Alzheimer; inventários; comportamento; atividades de vida diária

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Publication Dates

  • Publication in this collection
    Apr-Jun 2008

History

  • Received
    09 Apr 2008
  • Accepted
    21 May 2008
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