Migraine tied to increased risk of ischemic stroke in both men and women
Denmark: A recent study in PLOS Medicine revealed that migraine is associated with a similarly increased risk of premature ischemic stroke among women and men. However, for premature hemorrhagic stroke and MI, there may be an increased risk of migraine only in women.
People diagnosed with migraine are believed to have a higher risk of experiencing a heart attack or stroke before age 60. Previous studies have suggested the increased risk of ischemic stroke – when a blood clot blocks a blood vessel to the brain-mostly affects young women. It was unclear whether women with migraine also carry a higher risk of heart attack and hemorrhagic stroke when an artery in the brain bursts compared to men, which was the aim of the new research.
Hvitfeldt Fuglsang’s team conducted a nationwide study of Danish medical records collected from 1996 to 2018 from individuals aged 18 to 60. They identified men and women with migraine based on their prescription drug records. They compared their risk of a heart attack and ischemic and hemorrhagic stroke before age 60 to the risks faced by people in the general population without migraine.
Contrary to earlier findings, the analysis showed that both men and women with migraine had a similarly increased risk of ischemic stroke. However, women with migraine may also have a slightly higher risk of heart attack and hemorrhagic stroke than men with migraine and the general population.
Overall, the results suggest that women are more greatly impacted by migraine, especially since the condition is predominantly diagnosed in women. The researchers point out that since they used prescription drug records to identify patients with migraine, they may have missed untreated individuals, which could have resulted in an underestimation of the contribution of migraine to these health problems. Since heart attack and stroke can lead to life-long disabilities or even death, the researchers argue that it is vital to identify persons at increased risk to facilitate targeted preventative therapies.
Hvitfeldt Fuglsang adds, “Migraine was associated with a similarly increased risk of ischemic stroke among young men and women. However, migraine may be associated with an increased risk of myocardial infarction and hemorrhagic stroke only among women.”
Reference:
Cecilia Hvitfeldt Fuglsang ,Lars Pedersen,Morten Schmidt,Jan P. Vandenbroucke,Hans Erik Bøtker,Henrik Toft Sørensen, Published: June 13, 2023, https://doi.org/10.1371/journal.pmed.1004238
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