Abstract
In ICHD-IIIβ, non-hemiplegic migraine aura (NHMA) duration is considered normal when each symptom is no longer than one hour. A recent systematic review of the topic (Viana et al., 2013) did not find any article exclusively focusing on the duration of the aura. The pooled analysis of data from the literature on aura duration showed that visual symptoms lasting for more than one hour occurred in 6%–10% of patients, sensory symptoms in 14%–27% and dysphasic symptoms in 17%–60%.
Highlights
In ICHD-IIIb, non-hemiplegic migraine aura (NHMA) duration is considered normal when each symptom is no longer than one hour
The pooled analysis of data from the literature on aura duration showed that visual symptoms lasting for more than one hour occurred in 6%–10% of patients, sensory symptoms in 14%–27% and dysphasic symptoms in 17%–60%
All the patients prospectively recorded the characteristics of three consecutive attacks in an ad hoc aura diary that included the time of onset and the end of each aura symptoms and the headache
Summary
From 4th European Headache and Migraine Trust International Congress: EHMTIC 2014 Copenhagen, Denmark. 18-21 September 2014
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