The new study did find a higher incidence of heart attack
for migraine with aura — three times that of the migraine - free group.
Not exact matches
For migraine patients
with with no
auras, the cause of the pain is less apparent.
«Surprisingly, when we looked
for shared gene variants that might help explain part of the link between
migraine and heart disease, we found no shared gene variations between
migraine with aura and heart disease,» said study author Aarno Palotie, MD, of the Broad Institute of MIT and Harvard.
A new study suggests that genes may not be to blame
for the increased risk of heart disease some studies have shown in people
with migraine, especially those
with migraine with aura.
«We don't know specifically how frequently they have to occur to really create a significant risk
for stroke, but in general, if these
migraines with visual
auras are very frequent, the risk of stroke is higher.»
It wasn't until the late 1990s that neuroscientists discovered a deeper source of
migraines and their
auras — and
with it the potential
for a cure.
In
migraine with aura, many researchers now believe, a wave of electrical activity begins — usually at the part of the brain responsible
for vision in the occipital lobe, at the back of the head — and then spreads forward over the brain's surface.
Up to a third of
migraine sufferers
with aura have forewarning symptoms even the day before a
migraine attack which may well create the chance
for intervention and prevention.