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The effect of antenatal steroids on metabolic bone disease of prematurity
Sara Erol1, Mustafa Senol Akin1, Nihan Hilal Hosagasi1
1Department of Pediatrics, Division of Neonatology, Ankara Bilkent City Hospital, Ankara, Türkiye.
Insights
Antenatal steroid administration did not affect metabolic bone disease in preterm infants. Lower birth weight, not steroid exposure, was the primary risk factor for this condition.
Area of Science:
- Neonatal care
- Pediatric endocrinology
- Perinatology
Background:
- Metabolic bone disease (MBD) is a concern in preterm infants.
- Antenatal steroids are used to reduce preterm infant mortality and morbidity.
- The impact of antenatal steroids on MBD development requires further investigation.
Purpose of the Study:
- To assess the effect of antenatal steroid administration on the development of MBD in preterm infants.
- To identify risk factors for MBD in this population.
Main Methods:
- Retrospective study in a Level III NICU (Oct 2020 - Dec 2023).
- Included 173 infants born before 32 weeks gestation.
- MBD diagnosed at 4 weeks based on serum phosphorus and alkaline phosphatase levels.
Main Results:
- 15% (26/173) of infants developed MBD.
- Lower birth weight was the only independent risk factor for MBD.
- Antenatal steroid exposure did not significantly impact MBD diagnosis.
Conclusions:
- Antenatal steroids do not appear to influence MBD diagnosis at 4 weeks.
- Birth weight is a critical factor in MBD risk.
- Further research may explore other potential interventions for MBD prevention.
Objectives:
The study aimed to evaluate the impact of antenatal steroid administration, a key intervention for reducing early mortality and morbidity in preterm infants, on the development of metabolic bone disease.
Methods:
This single-center retrospective study was conducted in a Level III neonatal intensive care unit from October 2020 to December 2023.
Results:
It included 173 infants born before 32 weeks of gestation, with a mean birth weight of 1,338 ± 293 g. Metabolic bone disease, diagnosed at four weeks of age based on serum phosphorus and alkaline phosphatase levels, was identified in 26 (15 %) of the infants. Regression analysis examined prenatal factors, including birth weight, intrauterine growth restriction, respiratory distress syndrome, gender, and antenatal steroid exposure, revealing that only lower birth weight was an independent risk factor for metabolic bone disease.
Conclusions:
Antenatal steroid administration did not significantly influence the diagnosis of metabolic bone disease when assessed using biochemical markers at four weeks of age. These findings underscore the importance of birth weight in the risk profile for metabolic bone disease while indicating that antenatal steroids are not a contributing factor.
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