Incidencia y factores asociados con la restricción del crecimiento extrauterino en neonatos con peso menor a 1500 gramos

Extrauterine growth restriction (EUGR) occurs when apreterm newborn with adequate weight for gestationalage has a weight below the 10th percentile at hospitaldischarge. The present study aims to establish theincidence of EUGR and identify associated factors.Methodology: Retrospective cohort study. Pretermnewborns weighing less than or equal to 1500 grams wereincluded. Relevant qualitative and quantitative variableswere collected. Statistical analysis was performed withStata 14. Results: A sample of 80 patients was obtained,48% under 30 weeks of age and 78% weighing between1,000 and 1,500 grams. The incidence of EUCR was 50%.Prolonged stay in the intensive care unit, being born tomothers with preeclampsia, and lower gestational age atbirth affected weight gain. Conclusions: Newborns bornto mothers with preeclampsia have a higher risk of RCEU.This may be the result of a slowdown in antenatal growth.If they had spent more time in utero, at birth, theywould have been classified as having intrauterine growthrestriction. The groups with and without RCEU achieveda weight gain greater than 15 g/kg/day, which is a reflectionof adequate nutritional practices.