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Published on: June 2, 2014
Odorant substances that trigger headaches in migraine patients
R P Silva-Néto1, M F P Peres, M M Valença
1Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Brazil.
Certain odors, particularly perfumes, can trigger migraine attacks within minutes. This study identified common odor triggers in migraine patients, distinguishing them from tension-type headache sufferers.
Area of Science:
- Neurology
- Ophthalmology
- Headache Medicine
Background:
- Migraine is a common neurological disorder.
- Identifying triggers is crucial for managing migraine attacks.
- Odor triggers are frequently reported but not well-characterized.
Purpose of the Study:
- To identify specific odorants that trigger migraine attacks.
- To determine the latency period between odor exposure and headache onset.
- To differentiate odor triggers in migraine versus tension-type headache patients.
Main Methods:
- Interviewed 200 migraine and 200 tension-type headache patients.
- Assessed lifetime prevalence of odor-triggered headaches.
- Recorded time of onset of headache post-odor exposure.
- Diagnoses based on International Classification of Headache Disorders-II criteria.
Main Results:
- 70% of migraine patients reported odor-triggered headaches, with onset averaging 25.5 minutes.
- No tension-type headache patients reported odor triggers.
- Most frequent triggers included perfumes (75.7%), paints (42.1%), gasoline (28.6%), and bleach (27.1%).
- Significant associations found between perfume triggers and cleaning, cooking, beauty products, and foul odors.
Conclusions:
- Specific odorants, especially perfumes, can precipitate migraine attacks.
- Migraineurs experience rapid onset headaches after odor exposure.
- Odor triggers appear specific to migraine and not tension-type headaches.
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