Evidence map›Paper›PMID 21930540›Full record

SynthesisPediatrics2011

Inhaled nitric oxide in preterm infants: an individual-patient data meta-analysis of randomized trials.

Lisa M Askie, Roberta A Ballard, Gary R Cutter, Carlo Dani, Diana Elbourne, David Field, Jean-Michel Hascoet, Anna Maria Hibbs, John P Kinsella, Jean-Christophe Mercier and 10 more

Registry-linked trialOpen access · greenAbstract readMeta-Analysis
In one paragraph

Synthesis in Pediatrics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03576885 (Treatment of Delayed Pulmonary Transition in Extremely Preterm Infants & Bronchopulmonary Dysplasia), which is not on this map. Cited by 56 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 5 pooled it
11.0field-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.

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

56 citing papers in PubMed, 5 syntheses or guidelines pooled it, 147 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pediatric Cardiac Intensive Care Society 2014 Consensus Statement: Pharmacotherapies in Cardiac Critical Care Pulmonary Hypertension.Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies · 2016
    Guideline
  5. Pooled it
  6. Ancestry and genetic associations with bronchopulmonary dysplasia in preterm infants.American journal of physiology. Lung cellular and molecular physiology · 2018
    Trial
  7. Trial
  8. Trial
  9. Trial
  10. The role of prophylactic arginine supplementation for prevention of bronchopulmonary dysplasia in extremely preterm infants.Journal of perinatology : official journal of the California Perinatal Association · 2026
    Article
  11. Article
  12. Article
  13. Observational
  14. Review
  15. Review
  16. Review
  17. Review
  18. Review
  19. Observational
  20. A quality improvement project improving the value of iNO utilization in preterm and term infants.Journal of perinatology : official journal of the California Perinatal Association · 2021
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

20 authors at 15 institutions in 7 countries.

Lisa M AskieNational Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney, Australia. laskie@ctc.usyd.edu.au
Roberta A Ballard
Gary R Cutter
Carlo Dani
Diana Elbourne
David Field
Jean-Michel Hascoet
Anna Maria Hibbs
John P Kinsella
Jean-Christophe Mercier
Wade Rich
Michael D Schreiber
Pimol Srisuparp Wongsiridej
Nim V Subhedar
Krisa P Van Meurs
Merryn Voysey
Keith Barrington
Richard A Ehrenkranz
Neil N Finer
Meta-analysis of Preterm Patients on Inhaled Nitric Oxide Collaboration
London School of Hygiene & Tropical Medicine · GBNational Health and Medical Research Council · AUUniversity of California, San Diego · USAzienda Ospedaliero-Universitaria Careggi · ITCentre Hospitalier Universitaire Sainte-Justine · CAHôpital Robert-Debré · FRLucile Packard Children's Hospital · USRainbow Babies & Children's Hospital · USSiriraj Hospital · THUniversity of Alabama at Birmingham · USUniversity of California, San Francisco · USUniversity of Chicago · USUniversity of Colorado Denver · USUniversity of Liverpool · GBYale University · US

Funding

CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR025780 · NCRR · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2008 to 2011
$61.3M
INHALED NO FOR THE PREVENTION OF CHRONIC LUNG DISEASEU01HL064857 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI KINSELLA, JOHN PATRICK · 2000 to 2004
$8.2M
NCRR NIH HHS UL1 RR025780NHLBI NIH HHS U01 HL064857NHLBI NIH HHS U01HL064857
6 · The paper itself

Abstract

backgroundInhaled nitric oxide (iNO) is an effective therapy for pulmonary hypertension and hypoxic respiratory failure in term infants. Fourteen randomized controlled trials (n = 3430 infants) have been conducted on preterm infants at risk for chronic lung disease (CLD). The study results seem contradictory. DESIGN/

methodsIndividual-patient data meta-analysis included randomized controlled trials of preterm infants (<37 weeks' gestation). Outcomes were adjusted for trial differences and correlation between siblings.

resultsData from 3298 infants in 12 trials (96%) were analyzed. There was no statistically significant effect of iNO on death or CLD (59% vs 61%: relative risk [RR]: 0.96 [95% confidence interval (CI): 0.92-1.01]; P = .11) or severe neurologic events on imaging (25% vs 23%: RR: 1.12 [95% CI: 0.98-1.28]; P = .09). There were no statistically significant differences in iNO effect according to any of the patient-level characteristics tested. In trials that used a starting iNO dose of >5 vs ≤ 5 ppm there was evidence of improved outcome (interaction P = .02); however, these differences were not observed at other levels of exposure to iNO. This result was driven primarily by 1 trial, which also differed according to overall dose, duration, timing, and indication for treatment; a significant reduction in death or CLD (RR: 0.85 [95% CI: 0.74-0.98]) was found.

conclusionsRoutine use of iNO for treatment of respiratory failure in preterm infants cannot be recommended. The use of a higher starting dose might be associated with improved outcome, but because there were differences in the designs of these trials, it requires further examination.

Indexed as

Administration, InhalationBronchodilator AgentsDose-Response Relationship, DrugDrug Administration ScheduleHumansInfant, NewbornInfant, PrematureLung InjuryNitric OxideRandomized Controlled Trials as TopicRespiratory Distress Syndrome, NewbornRiskTreatment OutcomeBronchodilator AgentsNitric Oxide

Identifiers

PMID21930540
PMCPMC3387905
OpenAlexW2167171499

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.