Evidence map›Paper›PMID 41003714›Full record

ArticlePediatric cardiology2026

The Impact of Bronchopulmonary Dysplasia on the Maturation of Preterm Infants' Right Ventricular Mechanics Over the First Year of Life: A Prospective Strain-Echocardiography Cohort.

Karen Saori Shiraishi Sawamura, Lilian Dos Santos Rodrigues Sadeck, Antonildes Nascimento Assunção Junior, Nara Yuri Yamada Kushikawa, Alessandro Cavalcanti Lianza, Maria de Fatima Rodrigues Diniz, Carolina Rocha Brito Menezes, Isabela de Souza Lobo da Silva, Gabriela Nunes Leal

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Article in Pediatric cardiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

9 authors.

Karen Saori Shiraishi SawamuraInstituto da Criança e do Adolescente do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Enéas Carvalho de Aguiar, 647, São Paulo, SP, 05403-000, Brazil. karen.shiraishi@hc.fm.usp.br.
Lilian Dos Santos Rodrigues SadeckInstituto da Criança e do Adolescente do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Enéas Carvalho de Aguiar, 647, São Paulo, SP, 05403-000, Brazil.
Antonildes Nascimento Assunção JuniorInstituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
Nara Yuri Yamada KushikawaInstituto da Criança e do Adolescente do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Enéas Carvalho de Aguiar, 647, São Paulo, SP, 05403-000, Brazil.
Alessandro Cavalcanti LianzaInstituto da Criança e do Adolescente do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Enéas Carvalho de Aguiar, 647, São Paulo, SP, 05403-000, Brazil.
Maria de Fatima Rodrigues DinizInstituto da Criança e do Adolescente do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Enéas Carvalho de Aguiar, 647, São Paulo, SP, 05403-000, Brazil.
Carolina Rocha Brito MenezesInstituto da Criança e do Adolescente do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Enéas Carvalho de Aguiar, 647, São Paulo, SP, 05403-000, Brazil.
Isabela de Souza Lobo da SilvaInstituto da Criança e do Adolescente do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Enéas Carvalho de Aguiar, 647, São Paulo, SP, 05403-000, Brazil.
Gabriela Nunes LealInstituto da Criança e do Adolescente do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Enéas Carvalho de Aguiar, 647, São Paulo, SP, 05403-000, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bronchopulmonary dysplasia (BPD) is frequent in very-preterm infants, yet its effects on right-ventricular (RV) maturation during the first post-natal year remains unclear. We aimed to investigate RV mechanics among preterm with and without BPD, using conventional echocardiogram and speckle-tracking derived strain, throughout this period. We prospectively enrolled 118 infants born < 32 weeks' gestation who were scanned at 36 weeks post-menstrual age (PMA), as well as at 1-month and 1-year corrected age (CA). Seventy-two infants met BPD criteria and 46 served as controls. Pattern-mixture models, adjusted for sex, birth-weight z-score, and respiratory support, analyzed trajectories of RV global longitudinal strain (RVGLS). Conventional RV dimensions and functional measurements were comparable between groups at all visits. RVGLS increased in controls (+ 4.4 ± 1.2%) but remained unchanged in BPD (- 0.2 ± 1.3%), yielding a significant group-by-time interaction (β = - 5.8%, 95% CI - 9.3 to - 2.4; p = 0.001). At 1-year CA, mean RVGLS was lower in BPD than controls (24.3 ± 4.1% vs 28.7 ± 4.6%; p < 0.001). Oxygen dependency at 36 weeks PMA (β = - 5.8%; p = 0.001) and invasive ventilation > 2 days (β = - 2.8%; p = 0.012) independently predicted worse RVGLS, whereas high-frequency oscillatory ventilation was associated with improvement (β =  + 4.9%; p = 0.043). BPD may disrupt the normal maturation of RV mechanics during the first postnatal year. RVGLS identifies subclinical dysfunction undetectable by conventional echocardiography and may serve as an early biomarker to guide cardiopulmonary interventions in this high-risk population.

Indexed as

Bronchopulmonary DysplasiaHeart VentriclesVentricular Dysfunction, RightVentricular Function, RightEchocardiographyFemaleGestational AgeGlobal Longitudinal StrainHumansInfantInfant, NewbornInfant, PrematureMaleProspective StudiesBronchopulmonary dysplasiaEchocardiographyPrematureRight ventricular strain

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.