birth-weight infants during the recovery phase of respiratory distress syndrome and has been associated with long-term pulmonary sequelae. The importance of surgical and medical abolition of left-to-right shunting in symptomatic neonates is established. Four preterm infants with birth weights under 1, 500gm with a PDA unresponsive to pharmacological closure underwent ligation. Two of preterm infants survived to be discharged and are developing normally. One infant has died due to respiratory distress syndrome, septicemia and necrotizing enterocolitis during hospital stay and other infant died due to septicemia after hospital discharge with follow-up for 6 months.