Evidence map›Paper›PMID 26866905›Full record

ArticlePediatric research2016

The interrelationship of recruitment maneuver at birth, antenatal steroids, and exogenous surfactant on compliance and oxygenation in preterm lambs.

David G Tingay, Anushi Rajapaksa, Karen McCall, Cornelis E E Zonneveld, Don Black, Elizabeth Perkins, Magdy Sourial, Anna Lavizzari, Peter G Davis

Open access · bronzeAbstract read
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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
1.5field-weighted citation impact, top 17% 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, 14 citations in OpenAlex.

  1. Pooled it
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  4. Article
  5. Observational
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  7. Article
  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 5 institutions in 2 countries.

David G TingayNeonatal Research Group, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.ORCID 0000-0003-1522-4691
Anushi RajapaksaNeonatal Research Group, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.
Karen McCallNeonatal Research Group, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.
Cornelis E E ZonneveldNeonatal Research Group, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.
Don BlackNeonatal Research Group, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.
Elizabeth PerkinsNeonatal Research Group, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.
Magdy SourialNeonatal Research Group, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.
Anna LavizzariNeonatal Research Group, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.
Peter G DavisNeonatal Research Group, Murdoch Childrens Research Institute, Melbourne, Victoria, Australia.ORCID 0000-0001-6742-7314
Murdoch Children's Research Institute · AURoyal Children's Hospital · AUFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico · ITRoyal Women's Hospital · AUThe University of Melbourne · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo describe the interrelationship between antenatal steroids, exogenous surfactant, and two approaches to lung recruitment at birth on oxygenation and respiratory system compliance (Cdyn) in preterm lambs.

methodsLambs (n = 63; gestational age 127 ± 1 d) received either surfactant at 10-min life (Surfactant), antenatal corticosteroids (Steroid), or neither (Control). Within each epoch lambs were randomly assigned to a 30-s 40 cmH2O sustained inflation (SI) or an initial stepwise positive end-expiratory pressure (PEEP) open lung ventilation (OLV) maneuver at birth. All lambs then received the same management for 60-min with alveolar-arterial oxygen difference (AaDO2) and Cdyn measured at regular time points.

resultsOverall, the OLV strategy improved Cdyn and AaDO2 (all epochs except Surfactant) compared to SI (all P < 0.05; two-way ANOVA). Irrespective of strategy, Cdyn was better in the Steroid group in the first 10 min (all P < 0.05). Thereafter, Cdyn was similar to Steroid epoch in the OLV + Surfactant, but not SI + Surfactant group. OLV influenced the effect of steroid and surfactant (P = 0.005) on AaDO2 more than SI (P = 0.235).

conclusionsThe antenatal state of the lung influences the type and impact of a recruitment maneuver at birth. The effectiveness of surfactant maybe enhanced using PEEP-based time-dependent recruitment strategies rather than approaches solely aimed at initial lung liquid clearance.

Indexed as

Adrenal Cortex HormonesAnimalsAnimals, NewbornFemaleLung ComplianceMaleOxygenPositive-Pressure RespirationPulmonary SurfactantsRespiratory MechanicsRespiratory SystemSheepSheep, DomesticSteroidsAdrenal Cortex HormonesOxygenPulmonary SurfactantsSteroids

Identifiers

PMID26866905
OpenAlexW2253364383

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.