[Brain natriuretic peptide as a marker of digestive evolution in the premature newborn].

Background and objective: hemodynamically significant patent ductus arteriosus (HS-PDA) is associated with an increased risk of necrotizing enterocolitis (NEC) and worse enteral tolerance in preterm newborns (PN). An association has been demonstrated between brain natriuretic propeptide (proBNP) and HS-PDA. Our objective was to analyze the relationship between proBNP levels and enteral tolerance, NEC risk and weight gain in PN.