Evidence map›Paper›PMID 32014005›Full record

Observational studyCritical care (London, England)2020

Real-time shear wave ultrasound elastography: a new tool for the evaluation of diaphragm and limb muscle stiffness in critically ill patients.

Aurelien Flatres, Yassir Aarab, Stephanie Nougaret, Fanny Garnier, Romaric Larcher, Mathieu Amalric, Kada Klouche, Pascal Etienne, Gilles Subra, Samir Jaber and 3 more

Erratum issued 2 registry-linked trialsOpen access · goldAbstract readObservational Study
In one paragraph

Observational study in Critical care (London, England), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to 2 registered trials, which are not on this map. Cited by 41 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 2 pooled it
3.9field-weighted citation impact, top 5% 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.

NCT03550222 completednot on this map

Muscle Evaluation Using Ultrasound in the Critically Ill : ULTRAMUSCLE Study

TypeobservationalSponsorUniversity Hospital, MontpellierRan2018 to 2019Enrolled100ConditionsCritical Illness, ICU Acquired Weakness
NCT04550143 completednot on this map

Diaphragm Dysfunction and Peripheral Muscle Wasting in Septic Shock Patients: Exploring Their Relationship Over Time Using Ultrasound Technology

TypeobservationalSponsorUniversity Hospital, GenevaRan2020 to 2024Enrolled30ConditionsSeptic ShockArmsDiaphragm ultrasound (DUS), Peripheral Muscle Ultrasound (PMUS), Airway occlusion pressure (P0.1), Medical Research Council (MRC) sum score
3 · Its place in the literature

Who cites it

41 citing papers in PubMed, 2 syntheses or guidelines pooled it, 64 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Article
  6. Observational
  7. Reply to: Considerations of emerging diaphragmatic ultrasound techniques for clinical practice: potential pitfalls and future challenges.European respiratory review : an official journal of the European Respiratory Society · 2026
    Article
  8. Review
  9. Observational
  10. Article
  11. Article
  12. Article
  13. Ultrasound innovations in diaphragm assessment: an integrative review of expanding clinical applications.European respiratory review : an official journal of the European Respiratory Society · 2025
    Review
  14. Observational
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 7 institutions in 1 country.

Aurelien FlatresMedical Intensive Care Unit, Montpellier University and Montpellier Lapeyronie Teaching Hospital, Avenue du Doyen Gaston Giraud, 34000, Montpellier, France.
Yassir AarabMedical Intensive Care Unit, Montpellier University and Montpellier Lapeyronie Teaching Hospital, Avenue du Doyen Gaston Giraud, 34000, Montpellier, France.
Stephanie NougaretIRCM, INSERM U1194, and Department of Radiology, Montpellier Cancer Research Institute, 208 Ave des Apothicaires, 34295, Montpellier, France.
Fanny GarnierMedical Intensive Care Unit, Montpellier University and Montpellier Lapeyronie Teaching Hospital, Avenue du Doyen Gaston Giraud, 34000, Montpellier, France.
Romaric LarcherMedical Intensive Care Unit, Montpellier University and Montpellier Lapeyronie Teaching Hospital, Avenue du Doyen Gaston Giraud, 34000, Montpellier, France.
Mathieu AmalricMedical Intensive Care Unit, Montpellier University and Montpellier Lapeyronie Teaching Hospital, Avenue du Doyen Gaston Giraud, 34000, Montpellier, France.
Kada KloucheMedical Intensive Care Unit, Montpellier University and Montpellier Lapeyronie Teaching Hospital, Avenue du Doyen Gaston Giraud, 34000, Montpellier, France.
Pascal EtienneLaboratoire Charles Coulomb (L2C), University of Montpellier, CNRS, Montpellier, France.
Gilles SubraInstitut des Biomolécules Max Mousseron (IBMM), UMR5247 CNRS, ENSCM, Université de Montpellier, 34000, Montpellier, France.
Samir JaberINSERM U1046, CNRS UMR9214, Université de Montpellier, Montpellier, France.
Nicolas MolinariBiostatistics Department, Montpellier University and Montpellier Teaching Hospital, Montpellier, France.
Stefan MateckiINSERM U1046, CNRS UMR9214, Université de Montpellier, Montpellier, France.
Boris JungMedical Intensive Care Unit, Montpellier University and Montpellier Lapeyronie Teaching Hospital, Avenue du Doyen Gaston Giraud, 34000, Montpellier, France. b-jung@chu-montpellier.fr.
Université de Montpellier · FRCentre National de la Recherche Scientifique · FRHôpital Lapeyronie · FRHôpital Saint Eloi · FRInserm · FRInstitut de Recherche en Cancérologie de Montpellier · FRInstitut des Biomolécules Max Mousseron · FR

Funding

Université de Montpellier Not applicable
6 · The paper itself

Abstract

backgroundMuscle weakness following critical illness is the consequence of loss of muscle mass and alteration of muscle quality. It is associated with long-term disability. Ultrasonography is a reliable tool to quantify muscle mass, but studies that evaluate muscle quality at the critically ill bedside are lacking. Shear wave ultrasound elastography (SWE) provides spatial representation of soft tissue stiffness and measures of muscle quality. The reliability and reproducibility of SWE in critically ill patients has never been evaluated.

methodsTwo operators tested in healthy controls and in critically ill patients the intra- and inter-operator reliability of the SWE using transversal and longitudinal views of the diaphragm and limb muscles. Reliability was calculated using the intra-class correlation coefficient and a bootstrap sampling method assessed their consistency.

resultsWe collected 560 images. Longitudinal views of the diaphragm (ICC 0.83 [0.50-0.94]), the biceps brachii (ICC 0.88 [0.67-0.96]) and the rectus femoris (ICC 0.76 [0.34-0.91]) were the most reliable views in a training set of healthy controls. Intra-class correlation coefficient for inter-operator reproducibility and intra-operator reliability was above 0.9 for all muscles in a validation set of healthy controls. In critically ill patients, inter-operator reproducibility and intra-operator 1 and 2 reliability ICCs were respectively 0.92 [0.71-0.98], 0.93 [0.82-0.98] and 0.92 [0.81-0.98] for the diaphragm; 0.96 [0.86-0.99], 0.98 [0.94-0.99] and 0.99 [0.96-1] for the biceps brachii and 0.91 [0.51-0.98], 0.97 [0.93-0.99] and 0.99 [0.97-1] for the rectus femoris. The probability to reach intra-class correlation coefficient greater than 0.8 in a 10,000 bootstrap sampling for inter-operator reproducibility was respectively 81%, 84% and 78% for the diaphragm, the biceps brachii and the rectus femoris respectively.

conclusionsSWE is a reliable technique to evaluate limb muscles and the diaphragm in both healthy controls and in critically ill patients.

trial registrationThe study was registered (ClinicalTrial NCT03550222).

Indexed as

AdultCritical IllnessDiaphragmElasticity Imaging TechniquesExtremitiesFemaleFranceHospitals, UniversityHumansMaleMiddle AgedMusclesOrgan Dysfunction ScoresProspective StudiesReproducibility of ResultsStatistics, NonparametricCachexiaDiaphragmatic dysfunctionIntensive care unit acquired weaknessSonoelastography

Identifiers

PMID32014005
PMCPMC6998330
OpenAlexW3005365921

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.