Symptoms of Complex Migraine (Migraine with Aura)
Complex migraine (migraine with aura) presents with transient, fully reversible neurological symptoms that typically precede or accompany the headache, most commonly manifesting as visual disturbances (>90% of cases), followed by sensory symptoms (31%), speech/language difficulties, and less commonly motor, brainstem, or retinal symptoms. 1
Core Aura Symptoms
Visual Symptoms (Most Common - >90%)
- Fortification spectra (classic zigzag patterns)
- Scintillating scotoma (blind spots with shimmering edges)
- Blurry vision
- Visual distortions 1
Sensory Symptoms (~31%)
- Unilateral paresthesia (pins and needles sensation)
- Numbness that spreads gradually
- Typically affects face or arm
- Progresses in a characteristic spreading pattern 1
Speech and Language Symptoms
- Dysarthria (slurred speech)
- Dysphasic symptoms
- Slowed speech
- Dyslexia during attacks 2
Motor Symptoms (Hemiplegic Migraine)
- Motor weakness
- Occurs in specific hemiplegic migraine subtype 1
Brainstem Symptoms
- Vertigo
- Dysarthria
- Less common presentation 1
Retinal Symptoms
- Repeated monocular visual disturbances 1
Critical Diagnostic Characteristics
The aura symptoms must meet specific temporal and progression criteria 1:
- Gradual spread over ≥5 minutes (key differentiator from stroke/TIA)
- Two or more symptoms occur in succession
- Each symptom lasts 5-60 minutes
- At least one symptom is unilateral
- Aura accompanied by or followed by headache within 60 minutes
Associated Headache Features
When the headache phase occurs, it typically includes 1:
- Moderate to severe intensity
- Unilateral location (though 40% report bilateral pain)
- Pulsating quality
- Aggravation by routine physical activity
- Photophobia and phonophobia
- Nausea and/or vomiting
Additional Complex Features
Recent evidence reveals that complex auras may be more varied than traditionally recognized 3, 2:
- Higher cortical dysfunction symptoms (55% in teenagers): déjà vu, color dysgnosia, dyspraxia
- Aura relapses within 24 hours (13% of patients)
- Multiple aura types occurring in succession within the same attack
Critical Pitfall: Distinguishing from TIA
The gradual spread and successive onset of aura symptoms (≥5 minutes) distinguishes migraine aura from transient ischemic attacks, which have sudden, simultaneous symptom onset 1. This temporal pattern is essential for accurate diagnosis and avoiding unnecessary stroke workup.
Important Clinical Notes
- Patients may experience both migraine with aura and migraine without aura—both diagnoses should be made when applicable 1
- Many auras go unrecognized; clinicians should proactively ask about non-visual symptoms beyond standard visual questions 4
- Aura can occur without subsequent headache in some cases
- At least two attacks meeting criteria are required for diagnosis 1