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Migraine

Migraine
Migraine.jpg
Person having a migraine headache
Classification and external resources
Specialty Neurology
ICD-10 G43
ICD-9-CM 346
OMIM 157300
DiseasesDB

8207 31876

4693
MedlinePlus 000709
eMedicine neuro/218 neuro/517 emerg/230 neuro/529
Patient UK Migraine
MeSH D008881
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8207 31876

Migraine is a primary headache disorder characterized by recurrent headaches that are moderate to severe. Typically, the headaches affect one half of the head, are pulsating in nature, and last from two to 72 hours. Associated symptoms may include nausea, vomiting, and sensitivity to light, sound, or smell. The pain is generally made worse by physical activity. Up to one-third of people have an aura: typically a short period of visual disturbance which signals that the headache will soon occur. Occasionally, an aura can occur with little or no headache following it.

Migraines are believed to be due to a mixture of environmental and genetic factors. About two-thirds of cases run in families. Changing hormone levels may also play a role, as migraines affect slightly more boys than girls before puberty and two to three times more women than men. The risk of migraines usually decreases during pregnancy. The underlying mechanisms are not fully known. It is, however, believed to involve the nerves and blood vessels of the brain.

Initial recommended treatment is with simple pain medication such as ibuprofen and paracetamol (acetaminophen) for the headache, medication for the nausea, and the avoidance of triggers. Specific medications such as triptans or ergotamines may be used in those for whom simple pain medications are not effective.Caffeine may be added to the above. A number of medications are useful to prevent attacks including metoprolol, valproate, and topiramate.


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