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  • Title: Selective serotonin reuptake inhibitors prolong seizures - preliminary results from an observational study.
    Author: Dobesberger J, Ristic AJ, Walser G, Höfler J, Unterberger I, Trinka E.
    Journal: Clin Neurol Neurosurg; 2014 May; 120():89-92. PubMed ID: 24731583.
    Abstract:
    OBJECTIVE: Selective serotonin reuptake inhibitors (SSRIs) are often used in the treatment of depressive disorders in patients with epilepsy. Pro- and anti-convulsive effects of SSRIs are discussed controversially. The aim of this study was to investigate a possible impact of SSRIs-treatment on duration of EEG and clinical features in epilepsy patients. METHODS: We studied video-EEG data from 162 patients with focal epilepsies between January 2006 and March 2008 using a case-control study design. Eleven patients with 19 complex focal seizures (CFSs) and 16 secondary generalized tonic-clonic seizures (sGTCSs) treated with SSRIs (SSRIs+) were matched to 13 patients without SSRIs-treatment (SSRIs-). We compared duration of ictal EEG in CFSs and sGTCSs, duration of convulsions in sGTCSs and duration of postictal EEG suppression after sGTCSs in SSRIs+ and SSRIs- patients. RESULTS: Ictal EEG duration of both, CFSs and sGTCSs, was significantly longer in SSRIs+ patients than in SSRIs- patients (p=0.004 and p=0.015, respectively). No significant difference was found between convulsive phase duration of sGTCSs as well as duration of postictal EEG suppression after sGTCSs in both groups. CONCLUSION: Seizures last significantly longer in patients with epilepsy and SSRIs as co-medication. A causative role of SSRIs in ictal activity has to be explored in prospective studies.
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