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Fetal valproate syndrome: is there a recognisable phenotype?
1Kennedy Galton Centre for Clinical Genetics, Radlett, Hertfordshire.
Journal of Medical Genetics
|November 1, 1987
Summary
Exposure to valproic acid during pregnancy can cause a distinctive fetal valproate syndrome in infants. This syndrome is characterized by specific facial features and potential birth defects.
Area of Science:
- Teratology
- Developmental Biology
- Pediatric Medicine
Background:
- Sodium valproate and valproic acid are commonly prescribed anticonvulsant medications.
- Maternal use of valproic acid during pregnancy has been associated with potential risks to fetal development.
Observation:
- This study describes four infants exposed to valproic acid in utero.
- Common facial dysmorphisms were noted in surviving infants, including epicanthic folds, flat nasal bridge, broad nasal base, anteverted nostrils, shallow philtrum, and altered lip thickness.
Findings:
- A distinctive pattern of facial features, termed 'fetal valproate' phenotype, was observed.
- Additional anomalies included metopic suture ridging, congenital heart defects, postaxial polydactyly, and hypospadias in individual cases.
Implications:
- Recognition of the fetal valproate phenotype is crucial for early diagnosis and management.
- Understanding these teratogenic effects can inform clinical practice and patient counseling regarding valproic acid use during pregnancy.