A patent ductus arteriosus (PDA) is a persistent connection between the aorta and the pulmonary artery resulting in left to right shunting. This connection is supposed to close shortly after birth ...

Infants who had defined symptoms for PDA together with echocardiographically demonstrated ductus and presymptomatic infants with a ductus diameter/kg>1,5 or with a left atrium/aorta ratio>1,5 ...

This article presents common misconceptions about the physiologic significance of early ductal shunting and reviews the evidence regarding the preferential use of echocardiography rather than ...

Cite this: Current Controversies in the Diagnosis and Treatment of Patent Ductus Arteriosus in Preterm Infants - Medscape - Aug 01, 2003. The DA of a very preterm infant has minimal constriction ...