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Syndrome reference sheet
Generated 13 Oct 2026
Neurology · Neurology / Headache medicine; Vascular neurology Thunderclap headache syndrome
Also known as: Thunderclap headache
Sudden severe headache peaking within one minute.
- Medical specialty
- Neurology
- Subspecialty
- Neurology / Headache medicine; Vascular neurology
- Sex & age distribution
- Male: affected; Female: affected, more common; Children: yes, rare
- Gene(s) involved
- ATP1A2, CACNA1A, SCN1A
Etiology & mechanism
Subarachnoid hemorrhage, RCVS, dissection, CVT or primary.
Gene(s) involved (3)
ATP1A2CACNA1ASCN1A
Symptoms & signs (3)
peak within a minutesevere explosive headacheurgent hemorrhage exclusion