How predictable is the erectile function of patients with epilepsy?

Epilepsy Behav

Centro de Neurociências Aplicadas, Hospital Universitário, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Brazil; Departamento de Clínica Médica, HU, UFSC, Florianópolis, Brazil; Serviço de Neurologia, Departamento de Clínica Médica, HU, UFSC, Florianópolis, Brazil. Electronic address:

Published: June 2015

Introduction: Erectile dysfunction (ED) is often reported by patients with epilepsy and may be related to endocrine system abnormalities, side effects of antiepileptic drugs, psychiatric comorbidities, and family or social difficulties.

Aims: This study aimed to identify independent predictor factors for ED in patients with epilepsy.

Main Outcome Measures: the five-question form of the International Index of Erectile Function (IIEF-5).

Methods: Independent predictive factors for ED evaluated by the IIEF-5 questionnaire in 36 patients (mean age: 39 years) with focal epilepsy (mean: 6 seizures/month) were identified by multiple linear regression analysis.

Results: Eight (21.1%) patients were asymptomatic. Among the symptomatic patients, 11 (28.9%) had mild dysfunction, 10 (26.3%) had moderate dysfunction, and 9 (23.7%) showed severe ED. The multiple linear regression model including family income (B=0.005; p=0.05), education levels in years (B=0.54; p=0.03), depressive symptoms determined by HADS depression subscale (B=-0.49; p=0.03), and prolactin levels (B=-0.45; p=0.07) showed a moderate association (r=0.64) with the IIEF questionnaire and explained 41% (r(2)=0.41) of its variation.

Conclusions: Erectile dysfunction is highly prevalent in patients with focal epilepsies. Education, depressive symptoms, and prolactin levels can predict erectile dysfunction in up to 41% of patients with epilepsy. This preliminary report justifies further efforts to make a large sample size study to identify independent biomarkers and therapeutic targets for ED treatment in patients with epilepsy.

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http://dx.doi.org/10.1016/j.yebeh.2015.04.068DOI Listing

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