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EMBARGOED FOR RELEASE UNTIL 4 PM ET, July 22, 2015

Can Migraine Increase Your Risk of Stroke?

MINNEAPOLIS – New research suggests older people who experience migraines may have an increased risk of stroke, but only if they are smokers. The study is published in the July 22, 2015, online issue of Neurology®, the medical journal of the American Academy of Neurology. “Our findings may provide more evidence as to why quitting smoking is important for people who experience migraine,” said study author Teshamae Monteith, MD, of the University of Miami Miller School of Medicine in Miami and a member of the American Academy of Neurology. “While this investigation of migraine and vascular events in older people found that only smokers with migraine have an increased risk of stroke, earlier studies have shown that women younger than 45 who have migraine with aura are also at an increased risk of stroke, whether or not they smoke.” For the study, 1,292 people from the Northern Manhattan Study with an average age of 68 who reported migraine were followed for an average of 11 years to see who developed heart attacks or stroke. Of those, 187 had migraine without aura and 75 had migraine with aura. During the study, a total of 294 strokes, heart attacks and deaths occurred. The study did not find an association between migraine with or without aura and the risk of either stroke or heart attacks. However, among smokers, migraine was associated with a 3-fold increased risk of stroke, whereas among nonsmokers, migraine was not associated with a stroke risk. “Statistically, we could not rule out the possibility that the relationship between migraine and stroke in smokers was due to chance, however, we believe the association is consistent with other studies,” Monteith said. The collaborative study of investigators from the University of Miami and Columbia University was supported by the National Institute of Neurological Disorders and Stroke. To learn more about migraine and stroke, please visit www.aan.com/patients.

The American Academy of Neurology is the world's largest association of neurologists and neuroscience professionals, with 32,000 members. The AAN is dedicated to promoting the highest quality patient-centered neurologic care. A neurologist is a doctor with specialized training in diagnosing, treating and managing disorders of the brain and nervous system such as Alzheimer's disease, stroke, migraine, multiple sclerosis, concussion, Parkinson's disease and epilepsy.

For more information about the American Academy of Neurology, visit AAN.com or find us on Facebook, Twitter, LinkedIn and YouTube.


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