Basilar-Type Migraine (BM)

Does the patient have a headache that starts during the aura or afterwards within 60 minutes?

Does each aura symptom last from 5 to 60 minutes?

Does at least one symptom develop gradually over >= 5 minutes?

Do different aura symptoms occur in succession over >= 5 minutes?

• dysarthria?

• vertigo?

• tinnitus?

• hyperacusis?

• diplopia?

• ataxia?

• decreased level of consciousness?

• bilateral paresthesias occurring simultaneously?

• visual symptoms in both temporal and nasal fields of both eyes occurring simultaneously?

Number of such attacks

Age at onset

Are the aura symptoms fully reversible?

Does the patient have motor weakness?

Is there another disorder that can explain the findings better?