Evidence map›Paper›PMID 25118865›Full record

Observational studyIntensive care medicine2014

Evolution of inspiratory diaphragm activity in children over the course of the PICU stay.

Guillaume Emeriaud, Alexandrine Larouche, Laurence Ducharme-Crevier, Erika Massicotte, Olivier Fléchelles, Amélie-Ann Pellerin-Leblanc, Sylvain Morneau, Jennifer Beck, Philippe Jouvet

Open access · bronzeAbstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Intensive care medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 6% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Guideline
  2. Trial
  3. An overview of patient-ventilator asynchrony in children.Expert review of respiratory medicine · 2025
    Review
  4. Ventilation distribution in mechanically ventilated children in response to positioning: An exploratory study.The Southern African journal of critical care : the official journal of the Critical Care Society · 2025
    Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Review
  10. Observational
  11. Real-Time Effort Driven Ventilator Management: A Pilot Study.Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies · 2020
    Article
  12. Article
  13. Observational
  14. Article
  15. Review
  16. Article
  17. Article
  18. [Advances in respiratory assessment and treatment in children undergoing invasive mechanical ventilation].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2019
    Review
  19. Article
  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

9 authors at 3 institutions in 2 countries.

Guillaume EmeriaudPediatric Intensive Care Unit, CHU Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada, guillaume.emeriaud@umontreal.ca.
Alexandrine Larouche
Laurence Ducharme-Crevier
Erika Massicotte
Olivier Fléchelles
Amélie-Ann Pellerin-Leblanc
Sylvain Morneau
Jennifer Beck
Philippe Jouvet
Université de Montréal · CACentre Hospitalier Universitaire Sainte-Justine · CASt. Michael's Hospital · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeDiaphragm function should be monitored in critically ill patients, as full ventilatory support rapidly induces diaphragm atrophy. Monitoring the electrical activity of the diaphragm (EAdi) may help assess the level of diaphragm activity, but such monitoring results are difficult to interpret because reference values are lacking. The aim of this study was to describe EAdi values in critically ill children during a stay in the pediatric intensive care unit (PICU), from the acute to recovery phases, and to assess the impact of ventilatory support on EAdi.

methodsThis was a prospective longitudinal observational study of children requiring mechanical ventilation for ≥24 h. EAdi was recorded using a validated method in the acute phase, before extubation, after extubation, and before PICU discharge.

resultsFifty-five critically ill children were enrolled in the study. Median maximum inspiratory EAdi (EAdimax) during mechanical ventilation was 3.6 [interquartile range (IQR) 1.2-7.6] μV in the acute phase and 4.8 (IQR 2.0-10.7) μV in the pre-extubation phase. Periods of diaphragm inactivity (with no detectable inspiratory EAdi) were frequent during conventional ventilation, even with a low level of support. EAdimax in spontaneous ventilation was 15.4 (IQR 7.4-20.7) μV shortly after extubation and 12.6 (IQR 8.1-21.3) μV before PICU discharge. The difference in EAdimax between mechanical ventilation and post-extubation periods was significant (p < 0.001). Patients intubated mainly because of a lung pathology exhibited higher EAdi (p < 0.01), with a similar temporal increase.

conclusionsThis is the first systematic description of EAdi evolution in children during their stay in the PICU. In our patient cohort, diaphragm activity was frequently low in conventional ventilation, suggesting that overassistance or oversedation is common in clinical practice. EAdi monitoring appears to be a helpful tool to detect such situations.

Indexed as

Critical IllnessIntensive Care Units, PediatricRespiration, ArtificialAirway ExtubationChild, PreschoolDiaphragmFemaleHumansInfantLongitudinal StudiesMaleProspective Studies

Identifiers

PMID25118865
OpenAlexW2064132976

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.