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[Misdemeanor in frontotemporal dementia].

J Diehl1, J Ernst, S Krapp

  • 1Psychiatrische Klinik und Poliklinik der TU München, Ismaninger Str. 22, 81675 München. janine.diehl@lrz.tum.de

Fortschritte Der Neurologie-Psychiatrie
|May 4, 2006
PubMed
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Antisocial behavior, including theft and aggression, is common in frontotemporal dementia (FTD) and semantic dementia (SD) but rare in Alzheimer's disease (AD). This study quantifies misdemeanor prevalence in these dementia types.

Area of Science:

  • Neuroscience
  • Psychiatry
  • Gerontology

Background:

  • Antisocial and aggressive behaviors are clinically observed in frontotemporal lobar degeneration (FTD) dementia.
  • Previous studies on misdemeanor prevalence in FTD are limited.

Purpose of the Study:

  • To systematically investigate and quantify the prevalence of misdemeanor behaviors in patients with FTD.
  • To compare misdemeanor rates in FTD, semantic dementia (SD), and Alzheimer's-type dementia (AD).

Main Methods:

  • Developed a standardized questionnaire for caregivers to assess misdemeanor behaviors.
  • Interviewed caregivers of 30 FTD, 11 SD, and 33 AD patients.
  • Included questions on theft, burglary, property damage, verbal/physical offenses, bodily harm, drug abuse, and weapon use.

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Main Results:

  • Misdemeanor was present in 50% of FTD patients and 64% of SD patients, versus only 3% of AD patients.
  • Theft, particularly shoplifting, was the most frequent behavior (13 patients).
  • Physical threats occurred in 33% of FTD and 27% of SD patients, but none in AD patients.

Conclusions:

  • Misdemeanor behaviors are significantly more prevalent in FTD and SD compared to AD.
  • Antisocial and aggressive behaviors warrant clinical attention in FTD and SD diagnoses.
  • Standardized assessment tools are crucial for understanding behavioral changes in dementia.