Typical aura without headache, a rare subtype of migraine, occurs exclusively in 4% patients with migraine, and may take place at some point in 38% of patients with migraine with aura, according to recent study. Furthermore, typical aura without headache, also known as migraine aura without headache or acephalgic migraine, commonly presents with visual aura without headache, brainstem aura without headache, and can also develop later in life, known as late-onset migraine accompaniment. Its pathophysiology is suggested to be similar to classic migraines, with cortical spreading depression leading to aura formation but without an associated headache. Presently, no clinical trials have been performed to evaluate treatment options, but case reports suggest that most patients will respond to the traditional treatments for migraine with aura.
Shah DR, Dilwali S, Friedman DI. Migraine aura without headache. Curr Pain Headache Rep. 2018;22:77. doi:10.1007/s11916-018-0725-1.