Pregnancy in epileptic patients: comparison between well-established therapeutic strategies and opportunities coming from new drugs

Treating women affected by epilepsy during pregnancy is challenging.  Clinicians have to consider both the teratogenic effects of Antiepileptic Drugs (AEDs) and the risk of seizure recurrence. Pharmacokinetic changes during pregnancy are rapid and conspicuous so that the serum concentration of drugs can be modified and the effectiveness of AEDs cannot be guaranteed. The aim of this study is to evaluate the risk of Major Congenital Malformation (MCM) associated with AEDs treatment during the first trimester of pregnancy. We collected data from 338 patients who contacted the Teratology Information Services of XXX University Hospital and we found that only the variable monotherapy vs politherapy had statistical significance for MCM. More studies are needed to assess the efficacy and safety of newer AEDs.

Antidepressant-associated myoclonic status in a patient with symptomatic generalized epilepsy: does risk occur with therapeutic doses?

The clinical and EEG data of a 49-year-old man with myoclonic and generalized tonic-clonic seizures resulting from early childhood encephalitis are described. He experienced no tonic-clonic seizure for 10 years before brief exposure first to 60 mg/day duloxetine and then to 20mg/day paroxetine for depressive symptoms. These drugs were separately prescribed at a 9-month interval, and after beginning each drug, the patient experienced tonic-clonic seizures of worsening intensity and myoclonus of increasing frequency. Clinical features correlated with subcontinuous, generalized spike-wave discharges on the EEG. Discontinuation of antidepressant treatment resulted in rapid disappearance of clinical and electrophysiological manifestations of myoclonic status. We suggest care must be taken when using serotonin-noradrenaline reuptake inhibitors (SNRIs) or selective serotonin reuptake inhibitors (SSRIs), as these drugs pose the risk of complications in the specific population of people with myoclonic seizures.