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In
the new classification of migraine, Subtype 1.6 indicates complications
of migraine. This would include all of the permanent defects discussed
in this section.
Focal symptoms
and signs of the aura may persist beyond a headache phase. In the
previous classification, this was termed complicated migraine. It is now
defined by the IHS classification with two labels with increased
specificity. If the aura lasts for longer than one hour but less than
one week, the term migraine with prolonged aura is applied. If the signs
persist for more than one week or a neuroimaging procedure demonstrates
a stroke, a migrainous infarction has occurred. As pointed out
previously, mid or later life the aura may not be followed by headache
and has been termed migraine accompagnée or migraine associée.
Migraine with aura (classic) in early reports was sometimes referred to
as "ophthalmic migraine" (to be differentiated from
ophthalmoplegic migraine, a subtype of migraine with aura). Migraine
with aura is further reviewed under the headings: Cerebral,
Ophthalmoplegic, Retinal, Basilar, and Other Varieties.
Cerebral
A variety of
cerebral symptoms may occur in migraine with aura, including motor,
visual, and other sensory defects. As pointed out previously, if the
aura lasts for more than one hour , but less than one week, the term
migraine with prolonged aura is applied. However, if the signs persist
for more than one week, or a neuroimaging procedure shows a stroke the
term used is migrainous infarction. |