Evidence map›Paper›PMID 34045608›Full record

ArticleScientific reports2021

Early pulmonary hypertension is a risk factor for bronchopulmonary dysplasia-associated late pulmonary hypertension in extremely preterm infants.

Hyun Ho Kim, Se In Sung, Mi Sun Yang, Yea Seul Han, Hye Seon Kim, So Yoon Ahn, Ga Won Jeon, Yun Sil Chang, Won Soon Park

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
2.5field-weighted citation impact, top 10% of its field
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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 23 citations in OpenAlex.

  1. [A Meta analysis of risk factors for pulmonary hypertension related to bronchopulmonary dysplasia in preterm infants].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2026
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  5. Characteristics and outcomes of preterm infants with early pulmonary hypertension.Journal of perinatology : official journal of the California Perinatal Association · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 6 institutions in 1 country.

Hyun Ho Kim *Research Institute of Clinical Medicine of Jeonbuk National University, Jeonju, South Korea.
Se In Sung *Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
Mi Sun YangDepartment of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
Yea Seul HanDepartment of Pediatrics, Hallym University Kangnam Sacred Heart Hospital, Seoul, South Korea.
Hye Seon KimDepartment of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
So Yoon AhnDepartment of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
Ga Won JeonDepartment of Pediatrics, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea.
Yun Sil ChangDepartment of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. yschang@skku.edu.
Won Soon ParkDepartment of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
Samsung Medical Center · KRSungkyunkwan University · KRHallym University Kangnam Sacred Heart Hospital · KRInje University Busan Paik Hospital · KRJeonbuk National University · KRJeonbuk National University Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study evaluated whether early pulmonary hypertension (PH) in extremely preterm infants (EPIs) at 22-27 weeks of gestation detected clinically with echocardiography at 4-7 postnatal days (PND) is a risk factor for death before 36 weeks post-menstrual age (PMA) or late PH in moderate or severe (m/s) bronchopulmonary dysplasia (BPD) (BPD-PH). We analyzed risk factors for death before 36 weeks PMA or BPD-PH. Among 247 EPIs enrolled, 74 (30.0%) had early PH. Twenty-one (28.4%) infants with early PH and 18 (10.4%) without early PH died before 36 weeks PMA; 14 (18.9%) infants with early PH and 9 (5.2%) without early PH had BPD-PH at 36-38 weeks PMA. Multivariate analysis revealed that early PH (adjusted odds ratio, 6.55; 95% confidence interval, 3.10-13.82, P < 0.05), clinical chorioamnionitis (2.50; 1.18-5.31), intraventricular hemorrhage (grade 3-4) (3.43; 1.26-9.37), and late sepsis (6.76; 3.20-14.28) independently increased the risk of development of death before 36 weeks PMA or BPD-PH. Subgroup analysis among m/s BPD patients revealed that early PH (4.50; 1.61-12.58) and prolonged invasive ventilator care (> 28 days) (4.91; 1.02-23.68) increased the risk for late PH independently. In conclusion, EPIs with early PH at 4-7 PND should be monitored for BPD-associated late PH development.

Indexed as

Bronchopulmonary DysplasiaEchocardiographyFemaleGestational AgeHumansHypertension, PulmonaryInfantInfant, Extremely PrematureInfant, NewbornMaleRisk Factors

Identifiers

PMID34045608
PMCPMC8160152
OpenAlexW3165064523

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.