Evidence map›Paper›PMID 31328439›Full record

ArticlePediatric pulmonology2019

Relationship between respiratory function and need for NIV in childhood SMA.

Nitin Kapur, Sean Deegan, Ankit Parakh, Leanne Gauld

Open access · hybridAbstract read
In one paragraph

Article in Pediatric pulmonology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Spinal muscular atrophy: Broad disease spectrum and sex-specific phenotypes.Biochimica et biophysica acta. Molecular basis of disease · 2021
    Review
  10. Observational
  11. Reply to ChackoAmerican journal of respiratory and critical care medicine · 2020
    Article
  12. Article
  13. 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

4 authors at 2 institutions in 1 country.

Nitin KapurDepartment of Respiratory Medicine, Children's Health Queensland, South Brisbane, Australia.
Sean DeeganDepartment of Respiratory Medicine, Children's Health Queensland, South Brisbane, Australia.
Ankit ParakhDepartment of Respiratory Medicine, Children's Health Queensland, South Brisbane, Australia.
Leanne GauldDepartment of Respiratory Medicine, Children's Health Queensland, South Brisbane, Australia.ORCID 0000-0003-0819-894X
Children’s Health Queensland Hospital and Health Service · AUChildren's Medical Research Institute · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSpinal muscular atrophy (SMA) causes progressive respiratory muscle weakness but respiratory function (RF) in those using noninvasive ventilation (NIV) is not well described.

objectiveTo describe RF in childhood SMA and assess differences between those using and not using NIV.

methodsA cross-sectional study of childhood SMA assessed polysomnography (PSG), spirometry, forced oscillation technique (FOT), lung clearance index (LCI), sniff nasal inspiratory pressures, peak cough flow, maximal inspiratory and expiratory pressure, and NIV use and indication.

resultsTwenty-five children (median age [interquartile range], 8.96 [5.63] years; 10 F) with SMA 1 (n = 3), 2 (n = 15), and 3 (n = 7) were recruited. Spirometry and FOT testing was feasible in children as young as 3 years. Ten (40%) required NIV, 5 for sleep-disordered breathing (SDB), and 5 initiated during lower respiratory tract infection (LRTI). Children requiring NIV were older (median, 10.52 vs 5.67 years; P < .02) with more abnormal forced vital capacity (FVC) z-score (-5.70 vs -1.39, P < .02), Rsr8 z-score (1.97 vs 0.50, P = .04), and LCI (8.84 vs 7.34, P = .01). Two had normal RF and SDB. For FVC z-score less than -2.5 and LCI greater than 7.5, the odds ratio for NIV was 10.70 (95% confidence interval [CI], 1.39-82.03) and 2 (95% CI, 0.40-10.31), respectively. All children with LCI greater than 8 used NIV. FVC z-score and LCI are associated with maximum transcutaneous carbon dioxide on PSG (r = 0.43, P < .001).

conclusionNIV is common in SMA. Normal RF does not exclude SDB. Children with more abnormal FVC and LCI should be considered at risk of starting NIV during/following an LRTI.

Indexed as

Noninvasive VentilationAdolescentChildChild, PreschoolCross-Sectional StudiesFemaleHumansInfantInfant, NewbornMaleMuscular Atrophy, SpinalPolysomnographyRespirationRespiratory Function TestsRespiratory Tract InfectionsSleep Apnea Syndromesneuromuscular disordersnoninvasive ventilationrespiratory functionsleep-disordered breathing

Identifiers

PMID31328439
PMCPMC6852082
OpenAlexW2964004619

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.