Evidence map›Paper›PMID 26991259›Full record

ArticlePediatric research2016

Optimizing lung aeration at birth using a sustained inflation and positive pressure ventilation in preterm rabbits.

Arjan B Te Pas, Marcus J Kitchen, Katie Lee, Megan J Wallace, Andreas Fouras, Robert A Lewis, Naoto Yagi, Kentaro Uesugi, Stuart B Hooper

Open access · bronzeAbstract read
In one paragraph

Article in Pediatric research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 13% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Role of the Chest Wall in Newborn Respiratory Function at Birth.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Review
  4. Transient tachypnoea: new concepts on the commonest neonatal respiratory disorder.European respiratory review : an official journal of the European Respiratory Society · 2025
    Review
  5. Article
  6. Review
  7. Review
  8. 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

9 authors at 4 institutions in 4 countries.

Arjan B Te PasDivision of Neonatology, Department of Pediatrics, Leiden University Medical Center, Leiden, the Netherlands.
Marcus J KitchenSchool of Physics and Astronomy, Monash University, Victoria, Australia.
Katie LeeSchool of Physics and Astronomy, Monash University, Victoria, Australia.
Megan J WallaceThe Ritchie Center, Monash institute for Medical Research, Monash University, Victoria, Australia.
Andreas FourasDepartment of Medical Imaging and Radiation Sciences, Monash University, Victoria, Australia.
Robert A LewisDepartment of Medical Imaging and Radiation Sciences, Monash University, Victoria, Australia.
Naoto YagiJapan Synchrotron Radiation Research Institute, Hyogo, Japan.
Kentaro UesugiJapan Synchrotron Radiation Research Institute, Hyogo, Japan.
Stuart B HooperThe Ritchie Center, Monash institute for Medical Research, Monash University, Victoria, Australia.
Monash University · AUJapan Synchrotron Radiation Research Institute · JPLeiden University Medical Center · NLUniversity of Saskatchewan · CA

Funding

Facilitating The Physiological Transition at Birth In Term And Preterm NeonatesR01HD072848 · NICHD · MONASH UNIVERSITY · PI DAVIS, PETER GRAHAM, HOOPER, STUART · 2013 to 2016
$1.5M
NICHD NIH HHS R01 HD072848
6 · The paper itself

Abstract

backgroundA sustained inflation (SI) facilitates lung aeration, but the most effective pressure and duration are unknown. We investigated the effect of gestational age (GA) and airway liquid volume on the required inflation pressure and SI duration.

methodsRabbit kittens were delivered at 27, 29, and 30 d gestation, intubated and airway liquid was aspirated. Either no liquid (control) or 30 ml/kg of liquid was returned to the airways. Lung gas volumes were measured by plethysmography and phase-contrast X-ray-imaging. Starting at 22 cmH2O, airway pressure was increased until airflow commenced and pressure was then held constant. The SI was truncated when 20 ml/kg air had entered the lung and ventilation continued with intermittent positive pressure ventilation (iPPV).

resultsHigher SI pressures and longer durations were required in 27-d kittens compared to 30-d kittens. During iPPV, 27-d kittens needed higher pressures and had lower functional residual capacity (FRC) compared to 30-d kittens. Adding lung liquid increased SI duration, reduced FRC, and increased resistance and pressures during iPPV in 29- and 30-d kittens.

conclusionImmature kittens required higher starting pressures and longer SI durations to achieve a set inflation volume. Larger airway liquid volumes adversely affected lung function during iPPV in older but not young kittens.

Indexed as

Functional Residual CapacityTidal VolumeAnimalsAnimals, NewbornBirth WeightFemaleGestational AgeLungPlethysmographyPositive-Pressure RespirationPregnancyPregnancy, AnimalPressureRabbitsRespiratory Function TestsTime Factors

Identifiers

PMID26991259
PMCPMC4973011
OpenAlexW2299202885

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.