Evidence map›Paper›PMID 23873843›Full record

ArticleAmerican journal of physiology. Lung cellular and molecular physiology2013

Sustained inflation at birth did not protect preterm fetal sheep from lung injury.

Noah H Hillman, Matthew W Kemp, Peter B Noble, Suhas G Kallapur, Alan H Jobe

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Lung cellular and molecular physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
7.6field-weighted citation impact, top 2% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 57 citations in OpenAlex.

  1. Pooled it
  2. Sustained lung inflation in late preterm infants: a randomized controlled trial.Journal of perinatology : official journal of the California Perinatal Association · 2016
    Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Effects of budesonide and surfactant in preterm fetal sheep.American journal of physiology. Lung cellular and molecular physiology · 2018
    Article
  9. Article
  10. Article
  11. Review
  12. Can the preterm lung recover from perinatal stress?Molecular and cellular pediatrics · 2016
    Review
  13. Brief mechanical ventilation causes differential epithelial repair along the airways of fetal, preterm lambs.American journal of physiology. Lung cellular and molecular physiology · 2016
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Utility of large-animal models of BPD: chronically ventilated preterm lambs.American journal of physiology. Lung cellular and molecular physiology · 2015
    Review
  19. Review
  20. Article
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 2 countries.

Noah H HillmanSaint Louis Univ., Cardinal Glennon-Neonatology, 1100 South Grand, Saint Louis, MO 63104. Hillman@slu.edu.
Matthew W Kemp
Peter B Noble
Suhas G Kallapur
Alan H Jobe
University of Western Australia · AUCincinnati Children's Hospital Medical Center · US

Funding

Initiation and Progression of Preterm Lung Injury with VentilationR01HD072842 · NICHD · CINCINNATI CHILDRENS HOSP MED CTR · PI JOBE, ALAN H · 2012 to 2016
$1.4M
Lung Injury with Resuscitation of the PretermK08HL097085 · NHLBI · SAINT LOUIS UNIVERSITY · PI HILLMAN, NOAH H · 2009 to 2013
$644k
NHLBI NIH HHS K08-HL-097085NICHD NIH HHS R01 HD072842NICHD NIH HHS R01-HD-072842
6 · The paper itself

Abstract

Sustained lung inflations (SI) at birth may recruit functional residual capacity (FRC). Clinically, SI increase oxygenation and decrease need for intubation in preterm infants. We tested whether a SI to recruit FRC would decrease lung injury from subsequent ventilation of fetal, preterm lambs. The preterm fetus (128±1 day gestation) was exteriorized from the uterus, a tracheostomy was performed, and fetal lung fluid was removed. While maintaining placental circulation, fetuses were randomized to one of four 15-min interventions: 1) positive end-expiratory pressure (PEEP) 8 cmH2O (n=4), 2) 20 s SI to 50 cmH2O then PEEP 8 cmH2O (n=10), 3) mechanical ventilation at tidal volume (VT) 7 ml/kg (n=13), or 4) 20 s SI then ventilation at VT 7 ml/kg (n=13). Lambs were ventilated with 95% N2/5% CO2 and PEEP 8 cmH2O. Volume recruitment was measured during SI, and fetal tissues were collected after an additional 30 min on placental support. SI achieved a mean FRC recruitment of 15 ml/kg (range 8-27). Fifty percent of final FRC was achieved by 2 s, 65% by 5 s, and 90% by 15 s, demonstrating prolonged SI times are needed to recruit FRC. SI alone released acute-phase proteins into the fetal lung fluid and increased mRNA expression of proinflammatory cytokines and acute-phase response genes in the lung. Mechanical ventilation further increased all markers of lung injury. SI before ventilation, regardless of the volume of FRC recruited, did not alter the acute-phase and proinflammatory responses to mechanical ventilation at birth.

Indexed as

Functional Residual CapacityPositive-Pressure RespirationRespiration, ArtificialAcute-Phase ReactionAnimalsFemaleLung InjuryPregnancyPremature BirthSheep, Domesticbronchopulmonary dysplasiafunctional residual capacityinflammationresuscitation

Identifiers

PMID23873843
PMCPMC3763040
OpenAlexW1975844733

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.