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[The perinatal aspects of surviving low-birth weight neonates]
M A Rivera-Rueda1, J M Ramírez-Valdivia, R E Liz-Cedillo
1División de Pediatría, Instituto Nacional de Perinatología, México, D.F., México.
Insights
This study on low birth weight infants found that those small for gestational age (SGA) had lower morbidity and mortality risks than appropriate for gestational age (AGA) infants. Better prenatal care correlated with improved outcomes.
Area of Science:
- Perinatal Medicine
- Neonatology
- Public Health
Background:
- Low birth weight (LBW) infants (<2,500 g) represent a significant neonatal challenge.
- Understanding factors influencing prognosis in LBW neonates is crucial for improving outcomes.
- Prenatal care and gestational age are key determinants of infant health.
Purpose of the Study:
- To identify perinatal factors associated with a favorable prognosis in liveborn LBW infants.
- To compare outcomes between infants appropriate for gestational age (AGA) and small for gestational age (SGA) within LBW categories.
Main Methods:
- Retrospective analysis of prenatal and perinatal data for 277 LBW infants.
- Variables included maternal age, prenatal visits, pregnancy complications, delivery mode, birth weight, sex, gestational age, Apgar score, and neonatal morbidity.
- Infants categorized by birth weight (<1,000 g, 1,000-1,499 g, 1,500-2,499 g) and by gestational age (AGA vs. SGA).
Main Results:
- Neonatal morbidity and mortality risk were lower in small for gestational age (SGA) infants compared to appropriate for gestational age (AGA) infants.
- Improved outcomes were associated with higher birth weight and gestational age.
- Better prenatal care demonstrated a positive correlation with reduced risk.
Conclusions:
- Small for gestational age (SGA) status in LBW infants may be associated with a better prognosis than AGA status.
- Optimizing prenatal care and aiming for higher birth weight and gestational age are critical for improving LBW infant outcomes.
Abstract:
We analyzed prenatal history of 277 live low birth weight infants (less than 2,500 g). We tried to determine some perinatal factors that may be associated with good prognosis in this group of babies. The variables analyzed were: maternal age, number of prenatal visits, complication of pregnancy, mode of delivery, birth weight, sex, gestational age. Apgar score at 1 minute and the neonatal morbidity. The population was divided in 3 groups: 1. Less than 1,000 g, (3).2. 1,000-1,499 g, (37) and 3. 1,500-2,499 g (237). Each group was also divided in appropriate for gestational age (AGA) and small for gestational age (SGA). We found that morbidity and the risk of death, is less in the SGA compared with AGA, associated with better prenatal care, higher birth weight and gestational age.