How does the International Headache Society define migraine headache aura?

Updated: Oct 21, 2019
  • Author: Jasvinder Chawla, MD, MBA; Chief Editor: Helmi L Lutsep, MD  more...
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Answer

The International Headache Society defines aura as reversible focal neurologic symptoms that usually develop gradually over 5–20 minutes and last for less than 60 minutes. Headache with the features of migraine without aura usually follows the aura symptoms. Less commonly, the headache lacks migrainous features or is completely absent.


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