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Updated: Nov 4, 2025

Biochemical Measurement of Neonatal Hypoxia
Published on: August 24, 2011
Biochemical predictors for metabolic syndrome in preterm infants according to weight ratio
Claudia Silveira Viera1, Grasiely Masotti Scalabrin Barreto2, Rita de Cassia Silveira3
1Universidade Estadual do Oeste do Paraná, Cascavel, PR, Brasil, clausviera@gmail.com.
Insights
Preterm infants
Area of Science:
- Neonatal Medicine
- Pediatric Cardiology
- Metabolic Disorders
Background:
- Prematurity and low birth weight are risk factors for adult cardiovascular disease.
- The metabolic profile of preterm infants may be influenced by birth weight relative to gestational age (GA).
Purpose of the Study:
- To investigate the correlation between birth weight adequacy and the metabolic profile of preterm infants from birth to six months corrected age.
- To assess if the relationship between birth weight and GA impacts metabolic markers in preterm infants.
Main Methods:
- A longitudinal, prospective study of 70 preterm and 54 term infants.
- Infants were categorized as Appropriate for GA (AGA) or Small for GA (SGA).
- Metabolic markers (cholesterol, glucose, triglycerides, insulin) and anthropometry were tracked at birth, NICU discharge, and six months corrected age.
Main Results:
- No significant differences in most biochemical tests between AGA and SGA groups.
- The SGA group showed a significant increase in triglyceride levels above age-appropriate reference values during follow-up.
Conclusions:
- Metabolic profile changes in preterm infants do not correlate with birth weight adequacy.
- Continuous monitoring of lipid profiles in preterm infants is crucial due to elevated long-term cardiovascular risk.
Objective:
Prematurity and low birth weight predispose preterm infants to cardiovascular disease in later life. Is the metabolic profile of these children impacted by the relation between birth weight and gestational age (GA)? This study aimed to evaluate whether the relationship between birth weight and GA of preterm infants has a positive correlation with the metabolic profile from birth to the sixth month of corrected age.
Methods:
This is a longitudinal, prospective study with a cohort of 70 preterm and 54 term infants, who were enrolled in the study and shared into two groups: Appropriate for GA (AGA) and Small for GA (SGA), both classified at birth by Fenton and Kim curves. Longitudinal evaluation of anthropometry measures and blood samples of total cholesterol, glucose, triglycerides, and insulin were collected at birth, NICU discharge, and the sixth month of corrected age. Data were analyzed using descriptive and inferential statistical analysis (ANOVA, Fisher test, Shapiro-Wilk, and Cochran test). The effect size was 0.15, power was 0.92, and confidence interval 95%.
Results:
No significant statistical differences were observed in relation to biochemical tests between AGA and SGA groups. However, a significant increase in triglyceride results above the reference values for age in the SGA group was observed throughout the follow-up.
Conclusion:
Changes observed in the preterm infant metabolic profile show no correlation with adequacy of birth weight. Preterm lipid profile requires continuous evaluation at follow-up, due to the increased cardiovascular risk in later life.
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