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Related Experiment Videos

Potentially reversible dementia: a review.

B Draper1

  • 1Rehabilitation, Age and Extended Care Department, St George Hospital, Kogarah, NSW.

The Australian and New Zealand Journal of Psychiatry
|December 1, 1991
PubMed
Summary

Potentially reversible dementia is rare; cognitive impairment from conditions like depression or drug toxicity often improves. Early, mild symptoms predict better outcomes for reversible cognitive impairment.

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Area of Science:

  • Neurology
  • Gerontology
  • Psychiatry

Background:

  • Dementia diagnosis and its potentially reversible causes are reviewed.
  • Many conditions causing cognitive impairment, like depression and drug toxicity, do not meet dementia criteria and have better prognoses.
  • Reversible dementia is often misdiagnosed, leading to inadequate treatment.

Purpose of the Study:

  • To review the diagnosis, causes, and outcomes of potentially reversible dementia.
  • To differentiate between dementia and other causes of cognitive impairment.
  • To identify factors predicting improvement in cognitive impairment.

Main Methods:

  • Literature review of studies on neuropsychiatric syndromes associated with potentially reversible dementias.
  • Analysis of factors influencing prognosis in cognitive impairment.
  • Clinical assessment guidelines for potentially reversible cognitive impairment.

Main Results:

  • Dementia is an infrequent outcome of conditions causing potentially reversible cognitive impairment.
  • Few cases of dementia recover, even when potentially reversible.
  • Short symptom duration, mild cognitive impairment, and subcortical type predict improvement.
  • Delirium and depression are common causes of potentially reversible cognitive impairment.

Conclusions:

  • Potentially reversible cognitive impairment is a more accurate term than potentially reversible dementia.
  • Thorough clinical assessment is crucial for all cases, even established dementia, due to potential dual pathology.
  • Psychosocial management is essential for all patients with cognitive impairment.

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