Early aggressive nutrition for the premature infant.

Nutrition for sick newborn infants, both term and preterm, has been evolving since the first published report of use of total parenteral nutrition (TPN) in an infant. The more preterm infants have posed an even greater challenge, because optimal timing for use of enteral nutrition is an additional factor for completing their nutritional demands. Although benefiting the immune system among other physiological benefits, human milk has many nutritional gaps for the premature infant. The development of premature infant formulas and milk fortifiers has helped fill these gaps, but questions still exist about safety and efficacy of human milk versus formula. This article will focus on the use of TPN as well as early initiation of enteral feedings and the challenges this brings.