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  • Title: Trigger factors in migraine with aura.
    Author: Hauge AW, Kirchmann M, Olesen J.
    Journal: Cephalalgia; 2010 Mar; 30(3):346-53. PubMed ID: 19614703.
    Abstract:
    The aim of the present study was to identify trigger factors in migraine with aura (MA). A total of 629 MA patients representative of the Danish population were sent a questionnaire listing 16 trigger factors thought to be relevant as well as space for free text. Distinction was made between attacks with or without aura within each patient. The questionnaire was returned by 522 patients of whom 347 had current MA attacks. In total 80% with current attacks (278/347) indicated that at least one factor triggered their migraine, and 67% (187/278) in this group indicated that they were aware of at least one factor often or always giving rise to an attack of MA. Forty-one per cent (113/278) had co-occurring attacks of migraine without aura (MO). Stress (following stress), bright light, intense emotional influences, stress (during stress) and sleeping too much or too little were the trigger factors mentioned by most. Attack frequency had little impact on the number of trigger factors. Women reported more trigger factors than men. Patients having attacks of both MA and MO reported more trigger factors for MO attacks than for MA attacks. In conclusion, 80% of patients with MA reported trigger factors and two-thirds of these reported at least one trigger factor often or always triggering an attack of MA. Patients should be educated to avoid these factors.
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