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  • Title: Seizure exacerbation and hormonal cycles in women with epilepsy.
    Author: Kim GH, Lee HW, Park H, Lee SK, Lee SA, Kim YI, Song HK, Shin DJ, Hong SB.
    Journal: Epilepsy Res; 2010 Aug; 90(3):214-20. PubMed ID: 20542664.
    Abstract:
    PURPOSE: To investigate seizure frequency in relation to menstrual cycles and seizure exacerbations with respect to various clinical factors in women with epilepsy. METHODS: The authors prospectively evaluated premenopausal women with epilepsy aged 15-44. Catamenial epilepsy was defined as seizure frequency during the perimenstrual (C1), periovulatory (C2) or non-menstrual phase (C3) at least twice that during other phases. RESULTS: In total 255 menstrual cycles, 231 ovulatory and 24 anovulatory cycles were registered in 79 patients (29.7+/-7.8 years old). Average seizure frequency was 0.13+/-0.29/day during the menstrual phase, 0.14+/-0.24 during the follicular, 0.18+/-0.61 in the ovulatory, and 0.14+/-0.33 during the luteal phases. Catamenial seizure exacerbation was observed in 37/79 (46.8%) patients and 108/255 (42.4%) cycles, more frequently during anovulatory (17/24, 70.8%) than ovulatory (91/231, 39.4%) cycles (p=0.003). During ovulatory cycles, seizure exacerbation was primarily C1 (42.9%) or C2 (45.1%) pattern. Myoclonic seizures were more frequently associated with the C1 pattern. CONCLUSIONS: Overall, 46.8% of women had catamenial epilepsy. Seizure frequencies were greater during menstrual and ovulatory phases for ovulatory cycles, and during non-menstrual phases for anovulatory cycles.
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