Echocardiographic predictors of symptomatic patent ductus arteriosus in extremely-low-birth-weight preterm neonates.

OBJECTIVE: Identify echocardiographic parameters at or=1 indicated a large PDA, <1 but >or=0.5 moderate, and <0.5 small. Sensitivity, specificity, and positive predictive values (PPV) were determined for ELBW <27 weeks and >or=27 weeks gestational age. RESULT: Neonates with moderate to large PDA at