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[Embryopathy due to valproic acid with severe malformations in the central nervous system]

J M Pardal-Fernández1, M C Carrascosa-Romero, M Rodríguez-Vázquez

  • 1Servicio de Neurofisiología, Complejo Hospitalario Universitario de Albacete, Albacete, Spain. josempardal@yahoo.es

Revista De Neurologia
|April 1, 2006
PubMed

Insights

Valproic acid use during pregnancy can cause fetal valproate syndrome, a serious condition in newborns. This case highlights the link between maternal valproic acid treatment for epilepsy and specific embryopathy in an infant.

Area of Science:

  • Neurology
  • Teratology
  • Developmental Biology

Context:

  • Epilepsy management during pregnancy presents challenges due to potential teratogenic effects of antiepileptic drugs.
  • Valproic acid is a commonly prescribed antiepileptic with known teratogenic properties, leading to fetal valproate syndrome.
  • Identifying specific embryogenetic disorders linked to maternal medication is crucial for understanding developmental risks.

Purpose:

  • To report a case of fetal valproate syndrome in a preterm infant.
  • To investigate the association between maternal valproic acid monotherapy during gestation and observed embryopathy.
  • To highlight the characteristic features of this specific embryopathy, including neurological and morphological abnormalities.

Summary:

  • A preterm infant presented with facial dysmorphia, gingival hyperplasia, neurological hyperexcitability, and left temporal brain atrophy.
  • The infant's mother was treated with valproic acid monotherapy throughout pregnancy for generalized idiopathic epilepsy.
  • Metabolic, hereditary, and infectious causes for the observed embryopathy were ruled out, strengthening the link to valproate exposure.

Impact:

  • This case reinforces the teratogenic potential of valproic acid and the importance of considering fetal valproate syndrome in infants born to mothers treated with this drug.
  • The findings underscore the need for careful risk-benefit assessment when prescribing valproic acid during pregnancy.
  • Further research into the specific mechanisms of valproate embryopathy and potential preventative strategies is warranted.
Abstract

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