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Neural tube defect recurrence after 'partial' vitamin supplementation
S Sheppard1, N C Nevin, M J Seller
1Department of Paediatrics and Child Health, University of Leeds.
Journal of Medical Genetics
|May 1, 1989
Summary
Periconceptional multivitamin supplementation is crucial for preventing neural tube defects (NTDs). Even partial supplementation may offer some protection, but optimal timing is key for NTD prevention.
Area of Science:
- Obstetrics and Gynecology
- Public Health
- Developmental Biology
Background:
- Previous neural tube defect (NTD) births necessitate periconceptional multivitamin supplementation.
- Inadequate duration of supplementation may impact NTD recurrence rates.
- Optimal timing for supplementation is critical for neural tube development.
Purpose of the Study:
- To evaluate the NTD recurrence rate in mothers with partial periconceptional multivitamin supplementation.
- To assess the impact of supplementation timing on NTD recurrence.
- To discuss the significance of observed NTD recurrence rates.
Main Methods:
- Retrospective analysis of 227 mothers with previous NTD births.
- Categorization of mothers based on supplementation duration and timing.
- Examination of infants/fetuses for NTD occurrence.
Main Results:
- Two NTDs observed in 213 infants/fetuses from partially supplemented mothers.
- NTD recurrence rate in partially supplemented mothers appeared similar to fully supplemented mothers.
- Three NTDs observed in 14 mothers supplementing after neural tube closure.
Conclusions:
- Partial periconceptional multivitamin supplementation may not fully prevent NTD recurrence.
- Supplementation initiated after neural tube closure is unlikely to prevent NTDs.
- Further research is needed to clarify optimal supplementation protocols for NTD prevention.