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The present study was aimed at investigating the effects of anti-seizure medications (ASMs), patient demographic characteristics, and the seizure type and frequency on the development of congenital malformations (CMs) in the infants of pregnant women with epilepsy (PWWE). PWWE followed up at the neurology outpatient clinic of 21 centers between 2014 and 2019 were included in this prospective study. The follow-up of PWWE was conducted using structured, general pregnant follow-up forms prepared by the Pregnancy and Epilepsy Study Committee. The newborns were examined by a neonatologist after delivery and at 1 and 3 months postpartum. Of the infants of 759 PWWE, 7.2% had CMs, with 5.6% having major CMs. Polytherapy, monotherapy, and no medications were received by 168 (22.1%), 548 (72.2 %), and 43 (5.7 %) patients, respectively. CMs were detected at an incidence of 2.3% in infants of PWWE who did not receive medication, 5.7% in infants of PWWE who received monotherapy, and 13.7% in infants of PWWE who received polytherapy. The risk of malformation was 2.31-fold (95% confidence interval (CI): 1.48-4.61, p < .001) higher in infants of PWWE who received polytherapy. Levetiracetam was the most frequently used seizure medication as monotherapy, with the highest incidence of CMs occurring with valproic acid (VPA) use (8.5%) and the lowest with lamotrigine use (2.1%). The incidence of CMs was 5% at a carbamazepine dose <700 mg, 10% at a carbamazepine dose ≥700 mg, 5.5% at a VPA dose <750 mg, and 14.8% at a VPA dose ≥750 mg. Thus the risk of malformation increased 2.33 times (p = .041) in infants of PWWE receiving high-dose ASMs. Birth outcomes of PWWE receiving and not receiving ASMs were evaluated. The risk of CMs occurrence was higher, particularly in infants of PWWE using VPA and receiving polytherapy. The incidence of CMs was found to be lower in infants of PWWE receiving lamotrigine. © 2023 International League Against Epilepsy.

Citation

Mehmet Taylan Pekoz, Kezban Aslan-Kara, Betül Tekin, Candan Gurses, Seher Naz Yeni, Hacer Bozdemir, Selda Keskin-Guler, Dilek Ataklı, Gunay Gul, Fulya Eren, Hüseyin Sarı, Zeynep Baştug Gul, Ayten Ceyhan-Dirican, Fatma Genc, Yasemin Bicer-Gomceli, Cigdem Ozkara, Sakir Delil, Arife Cimen Atalar, Nerses Bebek, Betül Baykan, İbrahim Bora, Aylin Bican-Demir, Cemile Handan Mısırlı, Kemal Tutkavul, Sibel K Velioglu, Demet Ilhan-Algin, Oguz Erdinc, Serap Saygi, Irsel Tezer-Fılık, Ebru Apaydın-Dogan, Ali Akyol, Ozden Kamisli, A Destina Yalcın, Gonul Cakmak, Alevtina Ersoy, Sibel Ustun-Ozek, Gulistan Halac, Gulnihal Kutlu, Aygul Tantik-Pak, Sevinc P Yücel. Birth outcomes in pregnant women with epilepsy: A Nationwide multicenter study from Türkiye. Epilepsia. 2023 Sep;64(9):2310-2321

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PMID: 37357418

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