atypical aura and referral criteria

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With respect to typical aura (1):

Suspect aura in people who present with or without headache and with neurological symptoms that:

  • are fully reversible and
  • develop gradually, either alone or in succession, over at least 5 minutes
  • and last for 5-60 minutes

Diagnose migraine with aura in people who present with or without headache and with one or more of the following typical aura symptoms that meet the criteria above:

  • visual symptoms that may be positive (for example, flickering lights, spots or lines) and/or negative (for example, partial loss of vision)
  • sensory symptoms that may be positive (for example, pins and needles) and/or negative (for example, numbness)
  • speech disturbance

However consider further investigations and/or referral for people who present with or without migraine headache and with any of the following atypical aura symptoms that meet the criteria in recommendation:

  • motor weakness or
  • double vision or
  • visual symptoms affecting only one eye or
  • poor balance or
  • decreased level of consciousness

Reference:

Last reviewed 01/2018

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