Migraines and Risk Of Stroke

Excerpt from Reader's Digest Feb 2009

As many as 17 percent of women and 6 percent of men have experienced the debilitating pain of a migraine. Research shows that women who have migraines accompanied by their distinct "aura" symptoms are at a greater risk of having a stroke than those who don't get migraines.

Why the link? Migraine headaches are caused by inflammation of the arteries surrounding the brain. Other arteries inside the brain may spasm during an attack as well, temporarily cutting off circulation, thus increasing the odds of a stroke.

Additional risks Abnormalities in the lining of arteries may also allow blood to clot more readily. "And in rare cases, arteries leading to the brain may tear more easily," says Dr. Gretchen Tietjen, a professor of neurology at the University of Toledo. These tears can cause vessels to narrow and clots to form. Extra oestrogen from oral contraceptives especially in smokers) or hormonal therapy can further boost clotting factors to create a perfect storm for a stroke.

How to reduce your risks Low-does aspirin has been shown to decrease stroke risk in women over 45 and may prevent migraines too.

Doctors can help you reduce the risks associated with abnormal arteris. Maintaining healthy blood pressure is one way, but also ask your physician to order a routine blood test to determine whether you have markers for increased clotting. if you do, discuss aspirin therapy, anticlotting medications, or alternatives to hormone therapy.

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