Effect of Individualized Versus Standardized Parenteral Nutrition on Nutrient Intake and Postnatal Growth in Premature Infants

This single-center, retrospective, observational study compared standardized parenteral nutrition (SPN) with traditional individualized parenteral nutrition (IPN) on nutrient intake in 82 low-birth-weight preterm infants. Nutrient intake and available growth records collected during the first 21 postnatal days were reviewed. Compared with the IPN group, the SPN group exhibited a significantly higher body weight gain during the first, second, and third postnatal weeks. Parenteral nutrition duration was significantly shorter in the SPN group than in the IPN group (25.59 ± 7.48 vs 30.34 ± 8.26 days, P = .008), suggesting that SPN is an appropriate alternative to IPN to support weight gain and provide adequate energy and protein during the first 3 weeks of life alongside partial enteral feeding.