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AbstractBackground:Parenteral nutrition (PN) improves the growth and outcome of very low birth weight (VLBW) infants. Optimal PN composition, standard (STD-PN) or individualized (IND-PN), is still controversial. Aim:To compare IND-PN and STD-PN as to nutritional and growth parameters, complications and cost. Patients and Methods:140 VLBW infants were studied. Each of the 70 neonates from the IND-PN group was matched with a neonate of similar gestational age (GA; ±4 days) on STD-PN. Data collection included demographic, maternal, intrapartum, neonatal, interventional, growth and nutritional data. Results:Compared to STD-PN infants, IND-PN infants had a significantly lower mean birth weight, greater need for resuscitation at birth and interventions thereafter. Nevertheless, IND-PN infants showed significantly greater weight gain SDS during the 1st week (p = 0.036) and the 1st month of life (p = 0.0004), and higher discharge weight SDS (p = 0.012) and head circumference SDS (p = 0.006). IND-PN infants received higher mean daily caloric intakes. They also had significantly shorter durations of exclusive PN and needed less electrolyte corrections. Conclusions:Compared to STD-PN infants, IND-PN infants achieved significantly better growth without added clinical or laboratory complications, had a shorter period of exclusive PN and less electrolyte corrections. IND-PN, in accordance with the current more aggressive nutritional approach, appears optimal for PN of VLBW infants. Yet, STD-PN with adequate composition is an appropriate alternative.Copyright © 2010 S. Karger AG, Basel [ABSTRACT FROM AUTHOR]