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Opinions regarding the impact of antiepileptic drugs (AEDs) on the genesis of psychotic symptoms are varied. To re-examine this issue, the records of adult patients with partial epilepsy and newly added AEDs were retrospectively surveyed. The types of newly added AEDs and clinical characteristics were compared between 38 patients with active psychosis and 212 without psychotic history during a follow-up period of 3 to 6 months after initiation of AED administration. Using multivariate logistic regression analysis, the significance of possible predictive variables for development of psychosis was evaluated, which demonstrated that use of zonisamide (ZNS) and phenytoin (PHT), presence of complex partial seizures (CPS), and low intelligence level were significantly correlated with psychosis. We concluded that ZNS and PHT are possible risk factors for development of psychosis along with clinical variables, including the presence of CPS and low intelligence level., (Copyright © 2012 Elsevier Inc. All rights reserved.)

Aggression in patients with temporal lobe epilepsy (TLE) may have phenomenological and neurobiological heterogeneity. In the present study, we targeted patients with TLE who showed aggression and evaluated the effects of lamotrigine on this symptom using the Buss-Perry Aggression Questionnaire (BAQ), which is based on a four-factor model that includes Physical Aggression, Verbal Aggression, Anger, and Hostility. As compared with the healthy control subjects (n=115), patients with TLE (n=21) had significantly higher BAQ Total, Physical Aggression, Anger, and Hostility scores. Ten weeks after initiation of lamotrigine, the BAQ Total and Anger scores of the patients with TLE were significantly improved. However, the patients with TLE in this study did not exhibit depressive symptoms. Our results suggest that lamotrigine mitigates aggression, especially anger, which represents the emotional factor of aggression in the BAQ., (Copyright © 2011. Published by Elsevier Inc.)