Migraines in pregnancy could be a clue that a woman is at risk of a stroke, heart disease and blood clots, according to a study by the British Medical Journal (BMJ).
Researchers led by Cheryl Bushnell, a neurologist at Wake Forest University in Winston-Salem, North Carolina, trawled through a database of 18 million records of US patients who had been discharged from hospital from 2000-2003.
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Within this group, there was a strong association with treatment for stroke, heart attack, high blood pressure and the dangerous condition in pregnancy known as pre-eclampsia.
Still unclear is whether the migraine came before the cardio-vascular condition or after it, so more research is needed, the paper says.
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