Even among participants who reported experiencing a migraine aura, level of cardiovascular events, including heart attack and stroke reached 7.9 events per 1,000 women per year. Though this figure is much higher than the rate of cardiovascular events in the overall population are only 2.4 events per 1,000 women per year.
The study involved 27,860 U.S. women aged 45 years and over and no cardiovascular disease at the start of the study. Among the 1400 participants who had migraine aura. At the end of the study, or 15 years later there were 1030 reported cases of heart attack, stroke or death from cardiovascular events.
"But this study only found a link between migraine aura with the risk of a heart attack so it does not mean that every woman who has migraine aura for a heart attack or stroke. But probably the main factor associated with migraine as well as cardiovascular events themselves," said Kurth as reported MyHealthNewsDaily.
To that end, this study suggests that women with migraine aura in order to reduce cardiovascular risk factors, for example by always controlling blood pressure, not smoking and maintaining a healthy weight.
Responding to the study, Dr. Ezriel R. Kornel, a neurological expert from Northern Westchester Hospital in Mount Kisco, NY commented, "Migraine aura occurs when one of the blood vessels in the brain constrict, thereby reducing blood flow to a part of the brain. Consequently when blood vessels dilate to increase blood flow, comes the headache , "said Kornel.
"So it is possible that there are the same factors that cause constriction of blood vessels in patients with migraine with aura causes the blood vessels to the heart, resulting in heart attacks," he concluded.
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