Incidence and clinical features of patent ductus arteriosus in low-birthweight infants: a prospective analysis of 150 consecutively born infants.

摘要: The incidence of persistent patency the ductus arteriosus beyond third day life was prospectively determined in 100 preterm infants with birthweights 2,000 gm or less and 50 2,001 to 2,500 gm. overall 21% inversely related increasing gestational age birthweight. data suggest that immaturity is major determinant arteriosus. Spontaneous delayed closure occurred 79% patients survived immediate neonatal period. There a high degree association between presence patent (PDA) respiratory distress syndrome (RDS). Eight severe RDS PDA developed heart failure four required surgical ligation ductus. None greater than who had