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Diagnostic criteria

Authoring team

The diagnostic criteria for dementia with Lewy bodies (BLB) are:

  • there must be a progressive cognitive decline

  • two of the following must be present:
    • marked fluctuations in attention and alertness
    • recurrent visual hallucinations
    • parkinsonism

Features which support a diagnosis of DLB include:

  • recurrent falls
  • transient losses of consciousness
  • neuroleptic sensitivity
  • complex delusions
  • hallucinations in modalities other than vision

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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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