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Early energy restriction in premature infants and bronchopulmonary dysplasia: a cohort study
Jose Uberos1, Sara Jimenez-Montilla1, Manuel Molina-Oya1
1Neonatal Intensive Care Unit, San Cecilio Clinical Hospital, Medicine Faculty, Granada, Spain.
Insights
Poor early nutrition increases bronchopulmonary dysplasia (BPD) risk in premature infants. Insufficient energy intake during the first week of life was linked to a higher risk of developing BPD in very low birth weight (VLBW) infants.
Area of Science:
- Neonatology
- Pediatric Nutrition
- Respiratory Medicine
Background:
- Bronchopulmonary dysplasia (BPD) is a complex condition affecting premature infants.
- Previous research suggests a link between inadequate postnatal nutrition and BPD development.
- Early nutritional support is critical for VLBW infants.
Purpose of the Study:
- To investigate the association between energy intake in the first week of life and BPD in very low birth weight (VLBW) infants.
- To quantify the risk of BPD related to early energy and macronutrient intake.
- To inform nutritional strategies for preventing BPD.
Main Methods:
- Retrospective cohort study analyzing nutritional and clinical histories.
- Inclusion of 389 VLBW infants admitted to a neonatal intensive care unit.
- Assessment of enteral and parenteral macronutrient and fluid intake during the first week of life.
Main Results:
- Infants who developed BPD had significantly lower energy and lipid intake compared to those without BPD.
- Higher fluid intake was observed in newborns with BPD.
- Energy intake below 1778.2 kJ/kg in the first week was associated with a 2-fold increased adjusted risk of BPD.
Conclusions:
- Lower early energy intake is significantly associated with an increased risk of developing BPD in VLBW infants.
- Optimizing energy and nutrient delivery in the first week of life may reduce BPD incidence.
- Early nutrition is a modifiable factor in BPD prevention.
Abstract:
Bronchopulmonary dysplasia (BPD) is a multifactor pathology. Animal studies and cohort studies suggest that poor nutrient intake after birth increases the risk of BPD. The objective of the present study was to determine the existence of association between BPD in very low birth weight (VLBW) and energy intake during the first week of life. We recorded in a retrospective cohort study the intake of enteral and parenteral macronutrients during this period by examining the nutritional and clinical history of 450 VLBW newborns admitted to the neonatal intensive care unit. After applying the relevant exclusion criteria, data for 389 VLBW infants were analysed, of whom 159 developed some degree of BPD. Among the newborns with BPD, energy and lipid intake was significantly lower and fluid intake was significantly higher. The energy intake for the 25th percentile in the group without BPD was 1778·2 kJ/kg during the first week of life. An energy intake <1778·2 kJ/kg in this period was associated with a 2-fold increase in the adjusted risk of BPD (OR 2·63, 95 % CI 1·30, 5·34). The early nutrition and the increase of energy intake in the first week of life are associated in our sample with a lower risk of BPD developing.
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