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Risk factors for congenital syphilis
1Department of Paediatrics and Child Health, Groote Schuur Hospital, Cape Town, South Africa.
Annals of Tropical Paediatrics
|January 1, 1991
Summary
Maternal syphilis screening using Venereal Disease Research Laboratory (VDRL) titres can predict congenital syphilis in newborns. Untreated maternal infection significantly increases infant risk, guiding targeted infant follow-up and therapy.
Area of Science:
- Neonatal Health
- Infectious Diseases
- Maternal-Fetal Medicine
Background:
- Congenital syphilis poses a significant risk to newborns.
- Early identification and intervention are crucial for preventing long-term infant morbidity.
Purpose of the Study:
- To identify predictive factors for congenital syphilis in infants born to mothers with syphilis.
- To evaluate the utility of maternal Venereal Disease Research Laboratory (VDRL) titres in predicting infant infection.
Main Methods:
- Prospective study of newborns whose mothers had untreated or inadequately treated syphilis.
- Infants followed for 3-4 months to diagnose congenital syphilis.
- Analysis of maternal VDRL titres and infant outcomes.
Main Results:
- Maternal VDRL titres of 1:32 or higher predicted congenital syphilis with 93% sensitivity and 78% specificity.
- Infants of untreated mothers had a significantly higher risk of congenital syphilis (p = 0.036).
- Low birthweight was not a significant predictor of congenital syphilis.
Conclusions:
- Maternal VDRL titres are valuable predictors of congenital syphilis.
- Untreated maternal syphilis is a critical risk factor for infant infection.
- Predictive factors can guide targeted screening and treatment for at-risk infants.