Journal article
Making sense of the evidence: designing randomised controlled trials for preterm infants with high-shunt volume patent ductus arteriosus
Archives of disease in childhood. Fetal and neonatal edition
04/27/2026
DOI: 10.1136/archdischild-2025-330266
PMID: 42045012
Abstract
Management of the patent ductus arteriosus (PDA) in preterm infants remains controversial. Randomised controlled trials (RCTs) have shown that administering pharmacotherapy, predominantly ibuprofen, a cyclooxygenase (COX) inhibitor, to infants selected based on the standard echocardiography approach to diagnosis (eg, duct diameter and shunt direction), does not improve outcomes and may lead to harm. It remains uncertain, however, whether eliminating or reducing PDA shunt volume using an intervention with higher efficacy and fewer adverse effects, or in a more selective population, would show different results. It is possible that an imprecise approach to patient selection exposes low-risk infants to the adverse effects of pharmacotherapy without benefit and high-risk infants to the synergistic adverse effects of pharmacotherapy and persistent high volume pathological shunt when treatment fails. Whether targeted management of moderate-high volume PDA shunts, informed by comprehensive echocardiography adjudication, in the highest risk infants is beneficial remains untested in an RCT setting. Furthermore, both pharmacological and non-pharmacological interventions warrant further investigation. High quality practice changing research requires a collaborative approach between haemodynamic specialists, epidemiologists and trial methodologists to (1) define the study population based on phenotypic profiles of high-risk infants; (2) enhance the choice and timing of intervention; and (3) identify outcome measures that are relevant and clinically meaningful to families. In this review, we summarise evidence from RCTs and observational studies by discerning discrepancies and exploring potential explanations. Such an approach is essential to establish whether active PDA treatment confers any measurable benefit for high-risk preterm infants.
Details
- Title: Subtitle
- Making sense of the evidence: designing randomised controlled trials for preterm infants with high-shunt volume patent ductus arteriosus
- Creators
- Cheryl Battersby - Imperial College LondonPhilip T Levy - Boston Children's HospitalSamir Gupta - Durham UniversityWillem P de Boode - Radboud University NijmegenSouvik Mitra - University of British ColumbiaPatrick J McNamara - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Archives of disease in childhood. Fetal and neonatal edition
- DOI
- 10.1136/archdischild-2025-330266
- PMID
- 42045012
- ISSN
- 1359-2998
- eISSN
- 1468-2052
- Publisher
- BMJ
- Grant note
- National Institute for Health and Care Research (NIHR): NIHR300617
CB is funded by a personal fellowship from the National Institute for Health and Care Research (NIHR) for this study (NIHR300617). The views expressed in this publication are those of the authors and not necessarily those of the NIHR, NHS or the UK Department of Health and Social Care.
- Language
- English
- Electronic publication date
- 04/27/2026
- Academic Unit
- Stead Family Department of Pediatrics; Neonatology
- Record Identifier
- 9985157502602771
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