Pathophysiology of patent ductus arteriosus in premature neonates

Arpitha Chiruvolu, Mambarath A. Jaleel

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


Failure of complete postnatal closure of the ductus arteriosus is associated with various neonatal morbidities. Functional closure resulting from smooth muscle constriction and permanent anatomic closure due to vascular remodeling are the results of a complex interaction of different mechanisms. Prostaglandins, oxygen, nitric oxide and various other factors play a key role in ductal closure. An understanding of the role of these factors, involved both in maintenance of vascular tone of the ductus in fetal life as well as stimulation of ductal closure in postnatal life, and the cardiovascular and respiratory consequences of a patent ductus arteriosus, is important for the clinician involved in management of premature neonates.

Original languageEnglish (US)
Pages (from-to)143-146
Number of pages4
JournalEarly Human Development
Issue number3
StatePublished - Mar 2009


  • Chronic lung disease
  • Cyclo-oxygenase inhibitors
  • Ductus arteriosus
  • Nitric oxide
  • Oxygen
  • Pathophysiology
  • Prostaglandins

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Obstetrics and Gynecology


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