Evidence map›Paper›PMID 22311993›Full record

ArticlePediatrics2012

Prospective analysis of pulmonary hypertension in extremely low birth weight infants.

Ramachandra Bhat, Ariel A Salas, Chris Foster, Waldemar A Carlo, Namasivayam Ambalavanan

2 registry-linked trialsAbstract read
In one paragraph

Article in Pediatrics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 204 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
204citing papers in PubMed, 3 pooled it
15.9field-weighted citation impact, top 1% 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.

NCT02729844 completednot on this mapstarted 2016, after this paper: background citation

Pulmonary Hypertension in Preterm Children Born at Gestational Age <30 Weeks: Prevalence, Risk Factors and Outcome

Typeobservational_patient_registrySponsorUniversity Medical Center GroningenRan2016 to 2021Enrolled134ConditionsPulmonary Hypertension, Bronchopulmonary Dysplasia
NCT03576885 phase1 / phase2terminatednot on this mapstarted 2019, after this paper: background citation

Treatment of Delayed Pulmonary Transition in Extremely Preterm Infants & Bronchopulmonary Dysplasia

TypeinterventionalSponsorAdventHealthRan2019 to 2023Enrolled32ConditionsPulmonary Hypertension, Bronchopulmonary DysplasiaArmsinhaled nitric oxide, Placebo
3 · Its place in the literature

Who cites it

204 citing papers in PubMed, 3 syntheses or guidelines pooled it, 354 citations in OpenAlex.

  1. Pooled it
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  3. Bronchopulmonary dysplasia and pulmonary hypertension: a meta-analysis.Journal of perinatology : official journal of the California Perinatal Association · 2017
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  7. Phenotype-based screening algorithm for chronic pulmonary hypertension in preterm infants with bronchopulmonary dysplasia.Journal of perinatology : official journal of the California Perinatal Association · 2026
    Review
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144 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 1 country.

Ramachandra BhatDepartment of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama 35249-7335, USA.
Ariel A Salas
Chris Foster
Waldemar A Carlo
Namasivayam Ambalavanan
University of Alabama at Birmingham · USAlpine Learning Group · US

Funding

TRANSFORMING GROWTH FACTOR - BETA MEDIATES EFFECTS OF HYPOXIA IN NEWBORN LUNGR01HL092906 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI AMBALAVANAN, NAMASIVAYAM · 2008 to 2012
$1.9M
NHLBI NIH HHS R01 HL092906
6 · The paper itself

Abstract

objectivesPulmonary hypertension is associated with bronchopulmonary dysplasia in extremely low birth weight (ELBW) infants and contributes to morbidity and mortality. The objective was to determine the prevalence of pulmonary hypertension among ELBW infants by screening echocardiography and evaluate subsequent outcomes.

methodsAll ELBW infants admitted to a regional perinatal center were evaluated for pulmonary hypertension with echocardiography at 4 weeks of age and subsequently if clinical signs suggestive of right-sided heart failure or severe lung disease were evident. Management was at discretion of the clinician, and infants were evaluated until discharge from the hospital or pre-discharge death occurred.

resultsOne hundred forty-five ELBW infants (birth weight: 755 ± 144 g; median gestational age: 26 weeks [interquartile range: 24-27]) were screened from December 2008 to February 2011. Overall, 26 (17.9%) were diagnosed with pulmonary hypertension at any time during hospitalization (birth weight: 665 ± 140 g; median gestational age: 26 weeks [interquartile range: 24-27]): 9 (6.2%) by initial screening (early pulmonary hypertension) and 17 (11.7%) who were identified later (late pulmonary hypertension). Infants with pulmonary hypertension were more likely to receive oxygen treatment on day 28 compared with those without pulmonary hypertension (96% vs 75%, P < .05). Of the 26 infants, 3 died (all in the late group because of cor pulmonale) before being discharged from the hospital.

conclusionsPulmonary hypertension is relatively common, affecting at least 1 in 6 ELBW infants, and persists to discharge in most survivors. Routine screening of ELBW infants with echocardiography at 4 weeks of age identifies only one-third of the infants diagnosed with pulmonary hypertension. Further research is required to determine optimal detection and intervention strategies.

Indexed as

Infant, Extremely Low Birth WeightBronchopulmonary DysplasiaCohort StudiesComorbidityEchocardiography, DopplerFemaleGestational AgeHumansHypertension, PulmonaryIncidenceInfant MortalityInfant, NewbornMalePregnancyPrognosisProspective Studies

Identifiers

PMID22311993
PMCPMC3289526
OpenAlexW2171442793

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.