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Energy requirements in sick preterm babies
1Royal Maternity Hospital, Belfast, Northern Ireland.
Insights
Energy needs for sick preterm infants on mechanical ventilation are poorly understood. This review examines energy expenditure measurement methods and their challenges in this vulnerable population, highlighting risks of undernutrition.
Area of Science:
- Neonatology
- Pediatric critical care
- Nutritional science
Background:
- Energy requirements for healthy preterm infants are known.
- Sick preterm infants on mechanical ventilation, often developing bronchopulmonary dysplasia, represent a significant clinical challenge.
- Knowledge regarding the energy needs of these critically ill infants is limited.
Purpose of the Study:
- To review methods for measuring energy expenditure in sick preterm infants.
- To discuss methodological challenges in assessing energy expenditure in this population.
- To explore the relationship between energy reserves, intake, and expenditure.
Main Methods:
- Review of existing literature on energy expenditure measurement techniques.
- Analysis of studies measuring energy expenditure in sick preterm infants.
- Discussion of nutritional challenges, including intolerance to enteral and parenteral nutrition.
Main Results:
- Current data on energy expenditure in sick preterm infants is scarce.
- Methodological issues complicate accurate energy expenditure measurements in ill infants.
- Undernutrition in early life may have long-term health consequences.
Conclusions:
- Accurate assessment of energy requirements is crucial for sick preterm infants.
- Further research is needed to establish optimal nutritional strategies for this population.
- Addressing early undernutrition may mitigate risks of adverse outcomes later in life.
Abstract:
The energy requirements of healthy preterm babies are well documented in the literature. However, the clinical load in neonatal intensive care units is due to sick preterm infants requiring prolonged mechanical ventilation, many of whom will develop bronchopulmonary dysplasia. It is this group in which knowledge of energy requirements is scanty. This group also has poor energy reserves and is often intolerant of enteral and parenteral nutrition. In this article, we will review methods of measurement of energy expenditure, methodological problems when applied to ill infants and published results of energy expenditure measurements in sick preterm babies. We will review the link between energy reserves, energy intake and energy expenditure. The problems of undernutrition in early postnatal life and possible consequences in adult life will be discussed.