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Muscle WeaknessDYNAMIQUENCT04696497

Muscle Function and Muscle Ultrasound in ICU

A study testing Ultrasound, Dynamometric muscular assessment and Manual muscular Assessment (MRC-SS) in people with Muscle Weakness, run by Centre Hospitalier Régional d'Orléans at 1 site in France.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The objective of intensive care therapists is to be able to detect as early as possible the muscle weakness acquired in intensive care, in order to implement curative strategies such as adapted nutrition and early rehabilitation. Various diagnostic tools are available for this purpose. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Muscle Weakness
What is being tested?
Ultrasound, Dynamometric muscular assessment and Manual muscular Assessment (MRC-SS)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
15 participants
Where
1 siteFrance
Study dates
17 Dec 2021to 17 Dec 2021
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Major patient > 18 years old
  • Admission for more than 24 hours in the ICU ward
  • Stay must be at least 72 hours

Who cannot join

  • Person with a neuromuscular pathology
  • Person presenting an osteoarticular contraindication to mobilization
  • Amputee
  • Person under guardianship or curatorship
  • Person not affiliated to a social security system
  • Pregnant Women

Trial locations and contacts

1 site in 1 country.

France1 site
  • CHR d'Orléans

    Orléans, 45067

Other trials in France

About this study

Official title: Evaluation of Muscle Function at Discharge From ICU: Evaluation of the Correlation Between Manual Muscle Testing, Dynamometric and Peripheral Ultrasound Parameters

The objective of intensive care therapists is to be able to detect as early as possible the muscle weakness acquired in intensive care, in order to implement curative strategies such as adapted nutrition and early rehabilitation. Various diagnostic tools are available for this purpose. To evaluate muscle mass, CT and MRI remain the gold standard but are difficult to implement in routine practice in ICU and are extremely expensive and can generate radiation for the patient.

Functional muscle evaluation is based on different voluntary tests which are not all able to predict muscle weakness acquired in ICU. In addition, some of the voluntary tests are expensive and require expert staff for practice and interpretation of results.

Read more

In addition, a muscle test such as MRC, although having an intraclass coefficient of 0.94, has little predictive value on clinical parameters such as mechanical ventilation duration and is not associated with mortality in the ward. However, it remains the test of choice to define a ICUAW with a threshold value of 48/60 points.

Dynamometry is a tool for measuring muscle strength. The patient is asked to perform a short and intense maximal muscular effort against manual or instrumental resistance. The limb segments must not move, it is an isometric effort. The most common measurement in intensive care units is the dynamometric grip force, called "handgrip".

In ICU, the patient may have touble with awareness, arousal or even comprehension, which will lead to biases in the evaluation of the motor force.

Ultrasound is a tool available in ICU and the muscle component can be assessed qualitatively or quantitatively without the patient's participation. Several studies have also demonstrated that muscle ultrasound is capable of reliably detecting pathological changes, particularly when repeated. Muscle ultrasound could thus help identify patients at higher risk of prolonged complications. Nevertheless, this technique lacks standardization and normative criteria (patient position, probe position, type and number of measurements, target muscle, etc.).

The main objective is to show that the dynamometric force relative to ultrasound thickness of several muscle groups (arm flexors/knee extensors/foot lifters) is correlated with manual MRC testing in intensive care unit (ICU) patients

Read the detailed description

When the patient will be under invasive ventilatory support and coma, and will present the inclusion criteria, the investigator will perform ultrasound measurements of muscle thickness on four muscle groups:

  • Shoulder Side muscular compartment
  • Anterior Arm muscular compartment
  • Anterior thigh muscular compartment
  • Antero-lateral leg muscular compartment The ultrasound measurements will be made once a day each weekday, until the discharge from ICU.

Ultrasound measurements will be stopped if the patient's condition deteriorates and the ICU team chooses to limit active therapy.

If the patient condition get better, the investigator will perform the first volitional muscle function assessment, as soon as the patient Glasgow scale will score 15/15:

  1. Medical Research Council sum score (MRC-ss)
  2. Dynamometric strength assessment with the muscular groups used for the MRC-ss Then the volitional muscle assessment will be made once every 3 days, until patient discharges from ICU.
Conditions
Muscle Weakness
Being tested
Ultrasound, Dynamometric muscular assessment, Manual muscular Assessment (MRC-SS)
Keywords
Intensive care unit, Dynamometric, Ultrasound, Medical Research Council sum score, Ultrasonography, Muscle Strength, Critical Care
Medical subject headings
Muscle Weakness

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • UltrasoundDiagnostic test

    Ultrasound measurements of muscle thickness, using a linear probe (high frequency) on four muscle groups:

    • Shoulder Side muscular compartment
    • Anterior Arm muscular compartment
    • Anterior thigh muscular compartment
    • Antero-lateral leg muscular compartment
  • Dynamometric muscular assessmentDiagnostic test

    The principle of electronic dynamometry is to measure an isometric force. To carry out these measurements, the examiner will stand on the side who has to be tested by exerting a pressure diametrically opposite to the patient's movement, thus preventing him/her from carrying out the movement. The patient will perform 3 tests for each movement, the best value will be collected by the examiner.

    The reference position is :

    Patient elbowed to the body bent at 90°, with trunk inclination at 30° in the resuscitation bed, lower limbs flat.

  • Manual muscular Assessment (MRC-SS)Diagnostic test

    Following the same positions as for the dynamometer, the examiner will evaluate the 12 motor functions according to the following 60-point rating. With the maximum quote of 5 point representing normal strength and 0 point the total absence of any muscular contraction

Study groups in NCT04696497
Study groupRoleWhat they receive
Muscular AssessmentOtherAll the patients will received the muscular assessments
Receives: Diagnostic Test: Ultrasound; Diagnostic Test: Dynamometric muscular assessment; Diagnostic Test: Manual muscular Assessment (MRC-SS)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Correlation coefficient between force/thickness ratio and MRC testing.

    To show that the dynamometric force relative to ultrasound thickness of several muscle groups (arm flexors/knee extensors/foot lifters) is correlated with manual MRC testing in intensive care medicine patients

    Measured: Day 28

Secondary outcomes (3)
  1. Modification in millimeters of ultrasound muscle thickness

    Modification in millimeters of ultrasound muscle thickness

    Measured: Day 28

  2. Change in force measured by dynamometry in patients with more than 2 evaluations

    Change in force measured by dynamometry in patients with more than 2 evaluations

    Measured: Day 28

  3. Medical Research Council sum-score (MRC-ss)

    Following the same positions as for the dynamometer evaluation, the examiner will evaluate the 12 motor functions according to the following 60-point rating. With the maximum quote of 5 point representing normal strength and 0 point the total absence of any muscular contraction.

    Measured: Day 28

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Jan 2021
  2. Study start17 Dec 2021
  3. Primary completion17 Dec 2021
  4. Study completion17 Dec 2021

Why it stopped: inclusion difficulties and reorganization of the principal investigator's activity

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
15 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04696497
Sponsor's protocol ID
CHRO-2020-02
Acronym
DYNAMIQUE
Status last verified
Apr 2025
First submitted
4 Dec 2020
Last updated
20 Apr 2025
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Kress JP, Hall JB. ICU-acquired weakness and recovery from critical illness. N Engl J Med. 2014 Apr 24;370(17):1626-35. doi: 10.1056/NEJMra1209390. No abstract available.

    PubMed 24758618
  • Hermans G, Van den Berghe G. Clinical review: intensive care unit acquired weakness. Crit Care. 2015 Aug 5;19(1):274. doi: 10.1186/s13054-015-0993-7.

    PubMed 26242743
  • Cheung AM, Tansey CM, Tomlinson G, Diaz-Granados N, Matte A, Barr A, Mehta S, Mazer CD, Guest CB, Stewart TE, Al-Saidi F, Cooper AB, Cook D, Slutsky AS, Herridge MS. Two-year outcomes, health care use, and costs of survivors of acute respiratory distress syndrome. Am J Respir Crit Care Med. 2006 Sep 1;174(5):538-44. doi: 10.1164/rccm.200505-693OC. Epub 2006 Jun 8.

    PubMed 16763220
  • Cuthbertson BH, Roughton S, Jenkinson D, Maclennan G, Vale L. Quality of life in the five years after intensive care: a cohort study. Crit Care. 2010;14(1):R6. doi: 10.1186/cc8848. Epub 2010 Jan 20.

    PubMed 20089197
  • Herridge MS, Cheung AM, Tansey CM, Matte-Martyn A, Diaz-Granados N, Al-Saidi F, Cooper AB, Guest CB, Mazer CD, Mehta S, Stewart TE, Barr A, Cook D, Slutsky AS; Canadian Critical Care Trials Group. One-year outcomes in survivors of the acute respiratory distress syndrome. N Engl J Med. 2003 Feb 20;348(8):683-93. doi: 10.1056/NEJMoa022450.

    PubMed 12594312

Questions about this trial

What is this clinical trial studying?

A study testing Ultrasound, Dynamometric muscular assessment and Manual muscular Assessment (MRC-SS) in people with Muscle Weakness, run by Centre Hospitalier Régional d'Orléans at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 20 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was stopped early (reason given: inclusion difficulties and reorganization of the principal investigator's activity). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Correlation coefficient between force/thickness ratio and MRC testing. (time frame: Day 28). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04696497, which also lists 5 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Apr 2025.

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