Evidence map›Paper›PMID 27259338›Full record

ArticleThorax2016

Altered breathing mechanics and ventilatory response during exercise in children born extremely preterm.

J E MacLean, K DeHaan, D Fuhr, S Hariharan, B Kamstra, L Hendson, I Adatia, C Majaesic, A T Lovering, R B Thompson and 3 more

Open access · hybridAbstract read
In one paragraph

Article in Thorax, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 3 pooled it
5.9field-weighted citation impact, top 3% 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

30 citing papers in PubMed, 3 syntheses or guidelines pooled it, 66 citations in OpenAlex.

  1. Physiological responses to exercise in survivors of preterm birth: a meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2025
    Pooled it
  2. Lung volumes, gas transfer and oscillometry after preterm birth: systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2025
    Pooled it
  3. Impaired lung function and associated risk factors in children born prematurely: a systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2024
    Pooled it
  4. Long-term pulmonary outcomes in BPD throughout the life-course.Journal of perinatology : official journal of the California Perinatal Association · 2026
    Review
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  12. Article
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  14. Article
  15. Perinatal Hypoxemia and Oxygen Sensing.Comprehensive Physiology · 2021
    Article
  16. Article
  17. Article
  18. Early origins of lung disease: towards an interdisciplinary approach.European respiratory review : an official journal of the European Respiratory Society · 2020
    Review
  19. Phenotypes of Bronchopulmonary Dysplasia.International journal of molecular sciences · 2020
    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

13 authors at 4 institutions in 2 countries.

J E MacLeanFaculty of Medicine and Dentistry, Departments of Pediatrics, University of Alberta, Edmonton, Alberta, Canada Faculty of Medicine and Dentistry, Women & Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada.ORCID http://orcid.org/0000-0001-7994-9910
K DeHaanFaculty of Medicine and Dentistry, Departments of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.
D FuhrFaculty of Medicine and Dentistry, Departments of Medicine, University of Alberta, Edmonton, Alberta, Canada.
S HariharanFaculty of Medicine and Dentistry, Departments of Pediatrics, University of Alberta, Edmonton, Alberta, Canada Faculty of Medicine and Dentistry, Women & Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada.
B KamstraFaculty of Medicine and Dentistry, Departments of Pediatrics, University of Alberta, Edmonton, Alberta, Canada Faculty of Medicine and Dentistry, Women & Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada.
L HendsonDepartment of Pediatrics, University of Calgary, Calgary, Alberta, Canada.
I AdatiaFaculty of Medicine and Dentistry, Departments of Pediatrics, University of Alberta, Edmonton, Alberta, Canada Faculty of Medicine and Dentistry, Women & Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada.
C MajaesicFaculty of Medicine and Dentistry, Departments of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.
A T LoveringDepartment of Human Physiology, University of Oregon, Eugene, Oregon, USA.
R B ThompsonFaculty of Medicine and Dentistry, Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada.
D NicholasFaculty of Social Work, University of Calgary, Calgary, Alberta, Canada.
B ThebaudDepartment of Pediatrics, University of Ottawa, Ottawa, Ontario, Canada.
M K SticklandFaculty of Medicine and Dentistry, Women & Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada.
University of Alberta · CAUniversity of Calgary · CAUniversity of Oregon · USUniversity of Ottawa · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExtreme preterm birth confers risk of long-term impairments in lung function and exercise capacity. There are limited data on the factors contributing to exercise limitation following extreme preterm birth. This study examined respiratory mechanics and ventilatory response during exercise in a large cohort of children born extremely preterm (EP).

methodsThis cohort study included children 8-12 years of age who were born EP (≤28 weeks gestation) between 1997 and 2004 and treated in a large regionalised neonatal intensive care unit in western Canada. EP children were divided into no/mild bronchopulmonary dysplasia (BPD) (ie, supplementary oxygen or ventilation ceased before 36 weeks gestational age; n=53) and moderate/severe BPD (ie, continued supplementary oxygen or ventilation at 36 weeks gestational age; n=50). Age-matched control children (n=65) were born at full term. All children attempted lung function and cardiopulmonary exercise testing measurements.

resultsCompared with control children, EP children had lower airway flows and diffusion capacity but preserved total lung capacity. Children with moderate/severe BPD had evidence of gas trapping relative to other groups. The mean difference in exercise capacity (as measured by oxygen uptake (VO

conclusionsExpiratory flow limitation and an exaggerated ventilatory response contribute to respiratory limitation to exercise in children born EP with moderate/severe BPD.

Indexed as

Bronchopulmonary DysplasiaCanadaChildExerciseExercise TestFemaleHumansInfant, Extremely PrematureMaleRespiratory Function TestsRespiratory MechanicsExerciseLung PhysiologyPaediatric Lung Disaese

Identifiers

PMID27259338
PMCPMC5099182
OpenAlexW2411029329

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.