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Nutrition of preterm infants in relation to bronchopulmonary dysplasia
Andreas Wemhöner1, Daniel Ortner, Edda Tschirch
1Medical University Innsbruck, Department for Pediatrics, Neonatology, Austria. andreas.wemhoener@web.de
Insights
Bronchopulmonary dysplasia (BPD) risk increased with insufficient enteral nutrition in premature infants. Early and adequate enteral feeding is crucial for preventing BPD development in vulnerable newborns.
Area of Science:
- Neonatalogy
- Pediatric Pulmonology
- Nutritional Science
Background:
- Bronchopulmonary dysplasia (BPD) pathogenesis is multifactorial, influenced by prenatal inflammation and postnatal malnutrition.
- Nutritional status significantly impacts lung development in premature infants.
Purpose of the Study:
- To investigate the relationship between nutritional intake and the development of BPD in premature infants.
- To identify critical nutritional thresholds associated with BPD risk.
Main Methods:
- Retrospective analysis of 95 premature infants (<31 weeks, birth weight ≤1500 g) during the first two weeks of life.
- Evaluation of total, enteral, and parenteral nutrition, alongside weight gain.
- Comparison of nutritional intake between infants with and without BPD.
Main Results:
- Infants who developed BPD received significantly less enteral nutrition (456 ml/kg vs. 685 ml/kg).
- Lower cumulative caloric and protein intake, and higher fluid intake above 1840 ml/kg, were associated with increased BPD risk.
- Infants without BPD reached 50% enteral feeding faster (9.6 days vs. 11.5 days).
Conclusions:
- A minimal amount of enteral feeding appears critical for preventing BPD in preterm infants.
- While parenteral nutrition can compensate, insufficient enteral intake is linked to BPD development.
- Further prospective studies are needed to confirm the necessity of specific enteral feeding volumes.
Background:
The pathogenesis of bronchopulmonary dysplasia (BPD) is multifactorial. In addition to prenatal inflammation, postnatal malnutrition also affects lung development.
Methods:
A retrospective study was performed to analyse during the first two weeks of life the total, enteral and parenteral nutrition of premature infants (<31 weeks, birth weight ≤1500 g) born between 08/04 and 12/06.
Results:
Ninety-five premature infants were analysed: 26 with BPD (27 ± 1 weeks) and 69 without BPD (28 ± 1 weeks). There was no statistical significant difference in the total intake of fluids, calories, glucose or protein and weight gain per day in both groups. The risk of developing BPD was slightly increased in infants with cumulative caloric intake below the minimal requirement of 1230 kcal/kg and a cumulative protein intake below 43.5 g/kg. Furthermore, the risk of developing BPD was significantly higher when infants had a cumulative fluid intake above the recommended 1840 ml/kg. In infants who developed BPD, the enteral nutrition was significantly lower than in non-BPD infants [456 ml/kg (IQR 744, 235) vs. 685 (IQR 987, 511)]. Infants who did not develop BPD reached 50% of total enteral feeding significantly faster [9.6 days vs. 11.5].
Conclusions:
Preterm infants developing BPD received less enteral feeding, even though it was well compensated by the parenteral nutrient supply. Data suggest that a critical minimal amount of enteral feeding is required to prevent development of BPD; however, a large prospective clinical study is needed to prove this assumption.
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