Evidence map›Paper›PMID 25887144›Full record

ArticleBMC pulmonary medicine2015

Ventilation inhomogeneities in children with congenital thoracic malformations.

Payal H Mandaliya, Matthew Morten, Rajendra Kumar, Alan James, Aniruddh Deshpande, Vanessa E Murphy, Peter G Gibson, Bruce Whitehead, Paul Robinson, Joerg Mattes

Open access · goldAbstract read
In one paragraph

Article in BMC pulmonary medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 25% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. 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 4 institutions in 1 country.

Payal H MandaliyaExperimental & Translational Respiratory Medicine, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia. Payal.Mandaliya@hnehealth.nsw.gov.au.
Matthew MortenExperimental & Translational Respiratory Medicine, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia. Matthew.Morten@uon.edu.au.
Rajendra KumarPaediatric Surgery Department, Newcastle Children's Hospital, Newcastle, NSW, Australia. Rajendra.Kumar@hnehealth.nsw.gov.au.
Alan JamesSurgery Department, John Hunter Hospital, Newcastle, NSW, Australia. Alan.James@hnehealth.nsw.gov.au.
Aniruddh DeshpandePaediatric Surgery Department, Newcastle Children's Hospital, Newcastle, NSW, Australia. Aniruddh.Deshpande1@hnehealth.nsw.gov.au.
Vanessa E MurphyHunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia. vanessa.murphy@newcastle.edu.au.
Peter G GibsonHunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia. Peter.Gibson@hnehealth.nsw.gov.au.
Bruce WhiteheadPaediatric Respiratory and Sleep Medicine Department, Newcastle Children's Hospital, Newcastle, NSW, Australia. Bruce.Whitehead@hnehealth.nsw.gov.au.
Paul RobinsonPaediatric Respiratory Department, Children's Hospital at Westmead, Sydney, NSW, Australia. paul.robinson1@health.nsw.gov.au.
Joerg MattesExperimental & Translational Respiratory Medicine, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia. joerg.mattes@newcastle.edu.au.
Hunter Medical Research Institute · AUJohn Hunter Children's Hospital · AUChildren's Hospital at Westmead · AUJohn Hunter Hospital · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCongenital thoracic malformations (CTM) are rare lung lesions that are managed with surgical resection or active surveillance. The objective of this study was to comprehensively assess large and small airway function in children with CTM who underwent lobectomy in early life. We hypothesise that sensitive measures of lung function will demonstrate residual impairments in CTM compared to healthy children.

methodsNitrogen lung clearance index (LCI), reactance and resistance (X5Hz and R5Hz), forced expiratory volume in 1 s and forced vital capacity (FEV1 and FVC) were prospectively measured in 10 children with CTM (mean age/SD: 7.6/1.3) who had undergone surgical resection in early life and in 17 healthy children (mean age/SD: 4.8/0.4). Total lung capacity (TLC) was also conducted in children older than 7 years of age with CTM (n = 8).

resultsMean LCI was 8.0 (95% CI 7.5 to 8.5) in the CTM group and 7.3 (95% CI 7.0 to 7.6) in healthy children (p = 0.016). Mean X5Hz was -0.44kPa/l/s (95% CI -0.58 to -0.31) in the CTM group and -0.31kPa/l/s (95% CI -0.35 to -0.27) in healthy children (p = 0.02). Mean Z score for X5Hz was -2.11 (95% CI -3.59 to -0.63) in the CTM group and -0.11 (95% CI -0.55 to 0.33) in healthy children (p = 0.0008). Mean FEV1 was 1.21 L (95% CI 0.97 to 1.45) in the CTM group and 1.02 L (95% CI 0.90 to 1.15) in healthy children (p = 0.22). Mean % predicted FEV1 was 83% (95% CI 74 to 92) in the CTM group and 97% (95% CI 87 to 107) in healthy children (p < 0.05). Mean % predicted TLC in CTM children was 121.3% (95% CI 88.45 to 154.1). Mean LCI was inversely correlated with height z-scores in the CTM group (rs = -0.88, p = 0.002) but not in healthy children (rs = 0.22, p = 0.4).

conclusionsChildren with CTM have impaired lung function as demonstrated by the significant differences in LCI, reactance and FEV1 but not FVC, resistance and TLC. These findings may be of clinical relevance as ventilation inhomogeneities are closely correlated with somatic growth in this study.

Indexed as

Breath TestsBronchogenic CystBronchopulmonary SequestrationCase-Control StudiesChildChild, PreschoolCystic Adenomatoid Malformation of Lung, CongenitalFemaleForced Expiratory VolumeHumansLungMaleNitrogenPneumonectomyPulmonary EmphysemaPulmonary VentilationNitrogen

Identifiers

PMID25887144
PMCPMC4417263
OpenAlexW2019686464

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.