Research: Migraine increases stroke risk

Oct 28, 2009

Migraine with aura (temporary visual or sensory disturbances before or during a migraine headache) is associated with a twofold increased risk of stroke, finds a study published in the British Medical Journal today. Further risk factors for stroke among patients with migraine are being a woman, being young, being a smoker, and using oestrogen containing contraceptives.

The risk was highest among young women with migraine with aura who smoke and use oestrogen containing contraceptives.

Migraine is a common, chronic disorder that affects up to 20% of the population. Women are affected up to four times more often than men. Up to one third of sufferers also experience an aura prior to or during a (often described as the perception of a strange light, an unpleasant smell or confusing thoughts or experiences).

Doctors have long suspected a connection between migraine and vascular events such as stroke. So to investigate this further, an international team of researchers analysed the results of nine studies on the association between any migraine (with and without aura) and cardiovascular disease. Differences in study design and quality were taken into account to minimise bias.

They show that migraine with aura is associated with a twofold increased risk of . This risk is further increased by being female, age less than 45 years, smoking, and oestrogen containing contraceptive use.

There was no association between migraine and heart attack or death due to cardiovascular disease.

In light of these findings, the authors recommend that young women who have migraine with aura should be strongly advised to stop smoking, and methods of birth control other than oestrogen containing contraceptives should be considered. They also call for additional research to investigate the association between migraine and in more detail.

The absolute risk of for most migraine patients is low, so a doubling of risk is not cause for panic, explains Elizabeth Loder from Brigham and Women's Hospital, Boston, in an accompanying editorial. However, at a population level, this risk deserves attention because the prevalence of migraine is so high.

She suggests that patients who have with should be followed closely and treated aggressively for modifiable cardiovascular risk factors.

Source: (news : web)

Explore further: Drugs used to treat lung disease work with the body clock

add to favorites email to friend print save as pdf

Related Stories

Migraines increase stroke risk during pregnancy

Mar 10, 2009

Women who suffer migraines are at an increased risk of stroke during pregnancy as well as other vascular conditions such as heart disease, high blood pressure and blood clots, concludes a study published on bmj.com today.

Study reviews health risks, economic burden of migraine

Feb 02, 2009

A new study published in Value in Health reviews the economic burden of migraine in the U.S. and recent clinical findings of the health risks of this neurological condition. This study traces the history of economic articl ...

Recommended for you

User comments : 0