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Aim: This study analysed the changes in growth velocity (GV) of preterm infants weighing <1500 g based on different nutritional practices over a 24-year period., Methods: A retrospective study with prospectively collected data was performed in a level three Spanish neonatal intensive care unit. Data on birthweight, gestational age (GA) and GV were collected from 1990 to 2013 and breastfeeding data were gathered from 2000. A generalised linear model corrected by GA and small for gestational age was applied. Multiple mean comparisons between the levels of the variables of interest were performed using the Tukey test., Results: We included 1651 children in the study. The average GA in 1990-1991 was 30.48 ± 2.89 and the average GA in 2012-2013 was 28.79 ± 2.58 (p < 0.01). Significant differences were found when we compared the adjusted GV between the first and last study periods. The most important differences appeared between 1990 and 2013, when the GV increased by 3.27 ± 0.5 g/kg/day (p < 0.01). The breastfeeding rate in 2000-2001 was 47.95% and in 2012-2013 it was 73.58% (p = 0.0002)., Conclusion: Introducing nutritional practices such as the increased use of breastmilk and the breastfeeding rate improved GV over the study period., (©2017 Foundation Acta Paediatrica. Published by John Wiley & Sons Ltd.)

Introduction: The benefits of donor human milk compared with artificial formulas have been well demonstrated; nevertheless the impact in the clinical practice of opening a human milk bank within a neonatal unit has not yet been studied. The main aim of this study was to analyze the impact on the clinical practice of opening a human milk bank in a neonatal unit to provide donor human milk for preterm infants ≤ 32 weeks of gestational age., Methods: A before and after study was designed, with the intervention being the opening a human milk bank. Preterm infants ≤ 32 weeks of gestational age born in the Hospital 12 Octubre from July to December 2005 and January to June 2008 (firsts 6 months after opening the human milk bank) were included., Results: After opening the human milk bank, enteral feedings were started 31h before (P<.001), 100ml/kg/day were achieved 59.5h before (P<.001) and 150 ml/kg/day 52 h before (P=.002). Enteral feedings were never started LM with artificial formula, the exposure to formula in the first 15 days of life was reduced from 50% to 16.6%, and it's consumption during the first 28 days of life was significantly reduced. There was a higher consumption of own mother's milk during the hospital stay, and a higher rate of exclusive breastfeeding at hospital discharge (54% vs 40%)., Conclusions: The availability of donor human milk has led to quicker progression with enteral feedings and earlier withdrawal of parenteral nutrition. It has reduced the exposure to artificial formulas, and has also increased the intake of own mother's milk during the hospital stay and the rate of exclusive breastfeeding at hospital discharge., (Copyright © 2013 Asociación Española de Pediatría. Published by Elsevier Espana. All rights reserved.)