Evidence map›Paper›PMID 24529320›Full record

ArticleBMC pediatrics2014

Pressure- versus volume-limited sustained inflations at resuscitation of premature newborn lambs.

Graeme R Polglase, David G Tingay, Risha Bhatia, Clare A Berry, Robert J Kopotic, Clinton P Kopotic, Yong Song, Edgardo Szyld, Alan H Jobe, Jane J Pillow

Open access · goldAbstract read
In one paragraph

Article in BMC pediatrics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
5.8field-weighted citation impact, top 4% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 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. Trial
  4. Article
  5. Article
  6. Sustained Inflation of Infant Lungs: From Bench to Bedside and Back Again.American journal of respiratory and critical care medicine · 2019
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
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  15. Article
  16. Neonatal resuscitation: evolving strategies.Maternal health, neonatology and perinatology · 2015
    Article
  17. 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

10 authors at 7 institutions in 2 countries.

Graeme R Polglase
David G Tingay
Risha Bhatia
Clare A Berry
Robert J Kopotic
Clinton P Kopotic
Yong Song
Edgardo Szyld
Alan H Jobe
Jane J PillowCentre for Neonatal Research and Education, School of Paediatrics and Child Health, University of Western Australia, Perth, Australia. jane.pillow@uwa.edu.au.
University of Western Australia · AUCincinnati Children's Hospital Medical Center · USIcahn School of Medicine at Mount Sinai · USKing Edward Memorial Hospital · AUMonash Institute of Medical Research · AURoyal Women's Hospital · AUUniversity of Melbourne · AU

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
NICHD NIH HHS R01 HD072842
6 · The paper itself

Abstract

backgroundSustained inflations (SI) are advocated for the rapid establishment of FRC after birth in preterm and term infants requiring resuscitation. However, the most appropriate way to deliver a SI is poorly understood. We investigated whether a volume-limited SI improved the establishment of FRC and ventilation homogeneity and reduced lung inflammation/injury compared to a pressure-limited SI.

methods131 d gestation lambs were resuscitated with either: i) pressure-limited SI (PressSI: 0-40 cmH2O over 5 s, maintained until 20 s); or ii) volume-limited SI (VolSI: 0-15 mL/kg over 5 s, maintained until 20 s). Following the SI, all lambs were ventilated using volume-controlled ventilation (7 mL/kg tidal volume) for 15 min. Lung mechanics, regional ventilation distribution (electrical impedance tomography), cerebral tissue oxygenation index (near infrared spectroscopy), arterial pressures and blood gas values were recorded regularly. Pressure-volume curves were performed in-situ post-mortem and early markers of lung injury were assessed.

resultsCompared to a pressure-limited SI, a volume-limited SI had increased pressure variability but reduced volume variability. Each SI strategy achieved similar end-inflation lung volumes and regional ventilation homogeneity. Volume-limited SI increased heart-rate and arterial pressure faster than pressure-limited SI lambs, but no differences were observed after 30 s. Volume-limited SI had increased arterial-alveolar oxygen difference due to higher FiO2 at 15 min (p = 0.01 and p = 0.02 respectively). No other inter-group differences in arterial or cerebral oxygenation, blood pressures or early markers of lung injury were evident.

conclusionWith the exception of inferior oxygenation, a sustained inflation targeting delivery to preterm lambs of 15 mL/kg volume by 5 s did not influence physiological variables or early markers of lung inflammation and injury at 15 min compared to a standard pressure-limited sustained inflation.

Indexed as

AnimalsAnimals, NewbornFemaleFunctional Residual CapacityLung InjuryMalePressureResuscitationSheep

Identifiers

PMID24529320
PMCPMC3937019
OpenAlexW1973507533

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.