RT Book, Section A1 Chock, Valerie Y. A1 Rohovit, Stacie A2 Stevenson, David K. A2 Cohen, Ronald S. A2 Sunshine, Philip SR Print(0) ID 1109798225 T1 Patent Ductus Arteriosus Management T2 Neonatology: Clinical Practice and Procedures YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 9780071763769 LK accesspediatrics.mhmedical.com/content.aspx?aid=1109798225 RD 2024/10/12 AB The patent ductus arteriosus (PDA) is usually functionally closed within 12 hours of life. Anatomic closure normally occurs within 10 days. In the premature infant, closure often will not occur until term.