HomeWhat's NewVideosArticlesDownloadsCalendarWeb LinksSite MapO.R. Schedule
USC - University of Southern California Cardiothoracic Surgery at University of Southern California Keck School of Medicine
Department InformationPatient's GuideFaculty & StaffAreas of ExpertiseDiseases & TreatmentsContact Us

Glossary of Terms

Patent ductus arteriosus
Patent ductus arteriosus is a remnant of fetal circulation, and is an opening between the aorta and pulmonary artery. Its fetal purpose is to shunt blood away from the nonfunctional (collapsed) lungs. The ductus arteriosus normally closes spontaneously soon after birth, usually within 72 hours but may take as long as 2 weeks. Failure of the patent ductus arteriosus to close occurs most often in premature infants. Such infants may develop congestive heart failure because the left-to-right shunt increases blood flow to the lungs and left atrium.

Share and Bookmark

Find us on Facebook
Featured Areas

Faculty and Staff | Patient's Guide | Areas of Expertise | Diseases & Treatments | Contact Us
Home | What's New | Videos | Articles | Downloads | Calendar | Web Links | Site Map

University of Southern California, 1520 San Pablo Street, HCC2 Suite 4300, Los Angeles, CA 90033
Phone: 323.442.5849     Fax: 323.442.5956     E-mail: ctinfo@surgery.usc.edu
Copyright © USC Cardiothoracic Surgery