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Postictal headache in South African adult patients with generalised epilepsy in a tertiary care setting: a
Stephanus Schmidt Botha1, Clara-Maria Schutte, Steve Olorunju
1University of Pretoria, South Africa.
Unlabelled:
Postictal headache (PIH), although it occurs in 34-59% of epilepsy patients, has not been adequately studied. This study aims to describe clinical characteristics and associations of PIH in generalised epilepsy in a South African tertiary neurology clinic.
Methods:
Two-hundred consecutive adults with generalised epilepsy underwent semi-structured interviews, dividing them into study (with PIH) and control patients (no PIH), and data was statistically analysed.
Results:
PIH occurred in 104/200, with 63% having headache after every seizure. Pain duration was 4-24 hours in 43% and pain intensity severe in 55%. The criteria of the International Headache Society (2004), International Classification of Headache Disorders, second edition (ICHD-II) classified 47% as migraine, 38% tension-type and 15% unclassified (but 13% probable migaine). Self-medication occurred in 81% and interictal headache was significantly associated with PIH-present in 64% of study patients versus 5% of control patients.
Conclusion:
PIH occurs commonly in generalised epilepsy, mostly as migraine headache, with interictal headache a specific risk factor. PIH is underdiagnosed and undertreated, leading to self-medication. Optimal management should be elucidated in future studies.
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