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Updated: Jul 5, 2026

Closure of a Patent Foramen Ovale (PFO): An Intervention Sequence
Published on: December 23, 2022
Treatment of patent ductus arteriosus: indomethacin or ibuprofen?
1Department of Pediatrics, Neonatal-Perinatal Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA. kris-sekar@ouhsc.edu
Insights
Persistent patent ductus arteriosus (PDA) in preterm infants requires prompt treatment. Cyclo-oxygenase (COX) inhibitors like indomethacin and ibuprofen are effective, but surgical ligation is reserved for treatment failures, carrying long-term risks.
Area of Science:
- Neonatal Medicine
- Pediatric Cardiology
- Pharmacology
Background:
- Persistent patent ductus arteriosus (PDA) in preterm infants leads to significant hemodynamic changes and morbidities.
- Untreated PDA within the first week of life can cause respiratory, gastrointestinal, and renal complications.
Purpose of the Study:
- To review the medical considerations for treating PDA in premature infants.
- To compare the efficacy and side effects of available treatment options for PDA.
Main Methods:
- Review of current treatment modalities for PDA in preterm neonates.
- Comparison of pharmacological agents (indomethacin, ibuprofen) and surgical ligation.
- Analysis of drug-specific effects on morbidities like intraventricular hemorrhage (IVH) and organ perfusion.
Main Results:
- Indomethacin and ibuprofen lysine are equally effective COX inhibitors for PDA closure.
- Indomethacin offers IVH protection but may reduce renal and cerebral blood flow; ibuprofen is less toxic but lacks IVH benefits.
- Surgical ligation is effective for refractory PDA but associated with long-term neurological and respiratory issues.
Conclusions:
- Treatment choice for PDA in preterm infants depends on balancing efficacy, timing, and potential adverse effects.
- Pharmacological interventions are preferred early, with surgery as a last resort due to associated morbidities.
Abstract:
Persistent patent ductus arteriosus (PDA) in preterm infants can result in serious hemodynamic changes causing respiratory, gastrointestinal and renal morbidities if not treated within the first week of life. The treatment options available are a conservative approach, pharmacological treatment with cyclo-oxygenase (COX) inhibitors and surgical ligation. The COX inhibitors approved for use in the United States are indomethacin and ibuprofen lysine. Both of these drugs are equally effective in closing the PDA. Subtle differences exist between these two preparations. Indomethacin has a protective effect on the incidence of intraventricular hemorrhage (IVH) but reduces the blood flow to the kidneys and the brain. Ibuprofen is less toxic but has no effect on IVH. Efficacy of pharmacological treatment is influenced by timing of initiation of therapy. Surgical treatment is the only option when pharmacological treatment fails to close the PDA in symptomatic infants. Long-term neurological and respiratory morbidities are associated with surgical ligation. This paper reviews these medical considerations in the treatment options for PDA in premature infants.
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