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    Polycystic ovary syndrome and epilepsy - A review of the evidence

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    Overrepresentation of polycystic ovary syndrome (PCOS) in women with epilepsy has been described since the early 1980s. While some authors attribute this association to an effect of the seizure disorder on the hypothalamic control of reproductive function, others have reported a relationship with the use of the antiepileptic drug valproic acid (VPA). In this article we review the literature on this complex issue, with a detailed analysis of the different reports which describe the reproductive endocrine assessment in women with epilepsy. In spite of the large number of patients assessed, a clear picture does not emerge, mostly because of the wide variability of methodology employed in the different study projects and of the small size of many patient samples especially when divided in subgroups. However, on the whole these studies suggest that women with epilepsy are at risk for developing reproductive endocrine disorders, even if there is not yet definite evidence that PCOS may be over-represented in these patients nor that VPA may be the cause of endocrine problems. It is likely that both the epileptic disorder and the antiepileptic treatment play different roles in the development of such disturbances. This hypothesis deserves further prospective study in large samples of patients; consistency in methodology, diagnostic criteria and presentation of results should always be encouraged in the researchers dealing with these projects. In the meantime, women with epilepsy should be carefully monitored with regard to menstrual function, bodyweight and hyperandrogenism, and evaluation of these parameters should become part of the routine evaluation in baseline and follow-up consultations

    Epilepsy and polycystic ovary syndrome: where is the link?

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    Overrepresentation of polycystic ovary syndrome (PCOS) in women with epilepsy has been described since the early 1980s. While some authors attribute this association to an effect of the seizure disorder on the hypothalamic control of reproductive function, others have reported a relationship with the use of the antiepileptic drug valproic acid (VPA). In this article we review the literature on this complex issue, with a detailed analysis of the different reports which describe the reproductive endocrine assessment in women with epilepsy. In spite of the large number of patients assessed, a clear picture does not emerge, mostly because of the wide variability of methodology employed in the different study projects and of the small size of many patient samples especially when divided in subgroups. However, on the whole these studies suggest that women with epilepsy are at risk for developing reproductive endocrine disorders, even if there is not yet definite evidence that PCOS may be over-represented in these patients nor that VPA may be the cause of endocrine problems. It is likely that both the epileptic disorder and the antiepileptic treatment play different roles in the development of such disturbances. This hypothesis deserves further prospective study in large samples of patients; consistency in methodology, diagnostic criteria and presentation of results should always be encouraged in the researchers dealing with these projects. In the meantime, women with epilepsy should be carefully monitored with regard to menstrual function, bodyweight and hyperandrogenism, and evaluation of these parameters should become part of the routine evaluation in baseline and follow-up consultations

    Polycystic ovary syndrome in women using valproate: a review.

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    Valproate (VPA) is a highly effective drug successfully employed in several neuropsychiatric diseases. In the last 15 years, an increased prevalence of polycystic ovary syndrome (PCOS) associated with VPA use has been reported in both women with epilepsy and women with bipolar disorders. However, data on this subject are contrasting and it is possible that different factors might play a role in the development of PCOS in these patients. The risk of developing PCOS during VPA treatment seems to be higher in women with epilepsy than in women with bipolar disorders, and this might be due to an underlying neuroendocrine dysfunction related to the seizure disorder. Gynecologists must be aware of the possibility that PCOS in these populations of patients might be related to VPA use, and a careful multi-specialist approach is required for evaluating the risks and benefits of this treatment in the presence of features of PCOS
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