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Spinal dysraphism: genetic relation to neural tube malformations
Journal of Medical Genetics
|October 1, 1976
Summary
Mothers of children with spinal dysraphism should consider prenatal screening for neural tube defects. This study found a higher incidence of anencephaly and spina bifida in siblings of affected children.
Area of Science:
- Pediatric Neurology
- Medical Genetics
- Developmental Biology
Background:
- Spinal dysraphism encompasses a range of congenital anomalies.
- The etiological relationship between spinal dysraphism and classical neural tube malformations remains an area of investigation.
Purpose of the Study:
- To investigate the etiological link between spinal dysraphism and neural tube malformations (anencephaly, spina bifida cystica).
- To assess the recurrence risk of neural tube malformations in families with spinal dysraphism.
Main Methods:
- Retrospective study of 207 index patients with spinal dysraphism.
- Analysis of family history, specifically focusing on sibs of index patients for neural tube malformations.
Main Results:
- A significant proportion (4.12%) of sibs of index patients exhibited anencephaly or spina bifida cystica.
- The observed recurrence rate in siblings approximates that seen in families with isolated neural tube defects.
Conclusions:
- The findings suggest a potential shared etiology between spinal dysraphism and classical neural tube malformations.
- Prenatal screening for neural tube malformations is recommended for mothers with a history of spinal dysraphism in their children.