Observational studyJournal of perinatology : official journal of the California Perinatal Association2025
Characteristics and outcomes of preterm infants with early pulmonary hypertension.
Observational study in Journal of perinatology : official journal of the California Perinatal Association, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Caring for the smallest hearts: cardiovascular phenotypes and assessment in tiny babies.Pediatric research · 2026Review
- The Incidence of Pulmonary Hypertension and the Association with Bronchopulmonary Dysplasia in Preterm Infants of Extremely Low Gestational Age: Single Centre Study at the Maternity Hospital of University Medical Centre Ljubljana, Slovenia.Children (Basel, Switzerland) · 2025Article
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Authors and funding
7 authors.
Funding
Abstract
objectiveThis study investigates incidence, outcomes and echocardiographic characteristics of preterm infants with early pulmonary hypertension (PH) compared to those without. STUDY
designA prospective observational study of infants born <29 weeks gestation between July 2021-March 2024. Echocardiograms were performed at 24-48 h and 36 weeks postmenstrual age (PMA). Early PH was defined as bidirectional or right-to-left shunt across the ductus.
resultEarly PH was identified in 20/166 (12%) infants. These infants had higher mortality than controls (55% vs 11%; P < 0.01). Initial echocardiogram revealed differences in twist(°) (5.1 vs 7.9; P = 0.03), torsion(°/mm) (0.29 vs 0.41; P = 0.04), systolic time(ms) (146 vs 162; P < 0.01) and isovolumic relaxation time(ms) (58 vs 46; P < 0.01), with several persistent abnormalities at 36 weeks PMA.
conclusionPreterm infants with early PH have higher mortality and distinct echocardiographic profiles, with functional alterations persisting to 36 weeks PMA in survivors. Early identification and targeted management may improve outcomes.
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