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Respiratory InsufficiencyMIMENCT02853201

Monitoring Intercostal Muscles After Extubation

An observational study of Respiratory Insufficiency, run by Unity Health Toronto at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Mechanical ventilation is a life-saving treatment for critically ill patients who are unable to breathe on their own. At the time of recovery, separation from the ventilator is performed without difficulty for the majority of patients. However, approximately 15% of patients experience extubation failure, i.e. Read more about this study

Who is it for?
Ages 17 years and older
Conditions the study is for
Respiratory Insufficiency
How many people
124 participants
Where
1 siteCanada
Study dates
Aug 2016to 31 Mar 2018
Phase
Observational
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 17 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Extubated ICU patients.

Who may be able to join

  • Invasive mechanical ventilation ≥ 48 hours
  • Successful spontaneous breathing trial completed and extubation decided by the attending physician

Who cannot join

  • Withholding or withdrawal of life support
  • Patients under extracorporeal membrane oxygenation circuit
  • Impossibility to perform ultrasound of the diaphragm of the two accessory muscles: neck surgery, C-spine collar, Halo vest, morbid obesity. Patients will be enrolled as long as access to at least two locations is feasible (intercostal, diaphragm, or sternocleidomastoid).
  • Known (hemi) diaphragm paralysis

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • St. Michael's Hospital

    Toronto, Ontario, M5B 1W8

Other trials in Canada

About this study

Mechanical ventilation is a life-saving treatment for critically ill patients who are unable to breathe on their own. At the time of recovery, separation from the ventilator is performed without difficulty for the majority of patients. However, approximately 15% of patients experience extubation failure, i.e. they are re-intubated after extubation within a period of 48 hours to 7 days. Patients who fail extubation are exposed to a longer duration of mechanical ventilation, higher rates of ventilator-acquired pneumonia, higher morbidity, and higher ICU mortality. Therefore, it is of relevant importance for clinicians to identify patients who are at risk of extubation failure as soon as ventilation has been discontinued. However, current clinical assessment has poor predictive performance: some physiological variables can be helpful but can only be obtained invasively using esophageal and gastric catheters.

Using ultrasound measurements to assess the activity of the respiratory muscles could be of particular interest for this purpose. By showing an early recruitment of the accessory muscles as well as diaphragm dysfunction or hyperactivity, ultrasounds could help clinicians pay greater attention to such patients and therefore try to apply specific therapeutics. There are several advantages to ultrasounds: they are non-invasive, available in most intensive care units, and previous studies have reported reasonable reliability of the measurements.

In the present study, we aim to assess the contractility of the respiratory muscles (diaphragm, intercostal, and sternocleidomastoid) using ultrasounds to identify patients who may be at risk of extubation failure and/or ICU readmission.

Read the detailed description

This study is a single centre, prospective, physiologic study in extubated patients (n = 110) to assess the contractility of the diaphragm, intercostal, and sternocleidomastoid muscles. The purpose is to determine whether employing ultrasounds early after extubation is a useful diagnostic tool to identify patients who may be at risk of extubation failure and/or intensive care unit (ICU) re-admission. The study will be performed in the Medical-Surgical ICU of St. Michael's Hospital.

Once the clinical team has decided to extubate the patient, the research team will approach the patient for consent (if capable) or the patient's substitute decision maker. Demographic information will be extracted from the medical chart and entered into the study case report form (CRF). Ultrasounds of the diaphragm, intercostal, and sternocleidomastoid muscles will be performed within 2 hours of extubation and repeated within 24 hours of extubation (if feasible). The following physiological and biological variables will be collected before and after the spontaneous breathing trial (SBT): mode of ventilation and settings, Arterial Blood Gas (ABG) results, heart rate, arterial blood pressure, peripheral capillary oxygen saturation (SpO2), respiratory rate, Glasgow Coma Score (GCS), temperature, fluid balance in the last 24 hours, Sequential Organ Failure Assessment (SOFA) score, and rapid shallow breathing index (RSBI). At the time of the ultrasound measurements, the following physiological variables will be collected: heart rate, arterial blood pressure, SpO2, respiratory rate, Glasgow Coma Score (GCS), cough, Intensive Care Delirium Screening Checklist (ICDSC), ambient air, oxygenation, use of non-invasive ventilation (NIV), level of dyspnea, level of comfort, nasal flaring, Medical Research Council (MRC) score, and the Respiratory Intensive Care Observation Scale (RICOS). Outcome data will be recorded including: extubation failure, use of NIV and/or high-flow nasal oxygen cannula post extubation, re-intubation, ICU discharge/re-admission status, and tracheostomy. A 7-day follow-up after ICU discharge will signify completion of the study.

Keywords
Extubation, Intercostal Muscles, Diaphragm, Sternocleidomastoid Muscle
Medical subject headings
Respiratory Insufficiency

What is being measured

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

  1. Comparison of the thickening fraction of each muscle (diaphragm, intercostal, and sternocleidomastoid) between 2 groups of patients regarding the occurrence of extubation failure risk and ICU readmission.

    Measured: Up to 7 days after extubation

Timeline

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

  1. First posted2 Aug 2016 (estimated)
  2. Study startAug 2016
  3. Primary completion31 Mar 2018
  4. Study completion31 Mar 2018

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
124 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02853201
Sponsor's protocol ID
REB# 16-161
Acronym
MIME
Status last verified
Apr 2018
First submitted
29 Jul 2016
Last updated
10 Apr 2018
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Publications

  • Thille AW, Richard JC, Brochard L. The decision to extubate in the intensive care unit. Am J Respir Crit Care Med. 2013 Jun 15;187(12):1294-302. doi: 10.1164/rccm.201208-1523CI.

    PubMed 23641924
  • Matamis D, Soilemezi E, Tsagourias M, Akoumianaki E, Dimassi S, Boroli F, Richard JC, Brochard L. Sonographic evaluation of the diaphragm in critically ill patients. Technique and clinical applications. Intensive Care Med. 2013 May;39(5):801-10. doi: 10.1007/s00134-013-2823-1. Epub 2013 Jan 24.

    PubMed 23344830
  • Goligher EC, Laghi F, Detsky ME, Farias P, Murray A, Brace D, Brochard LJ, Bolz SS, Rubenfeld GD, Kavanagh BP, Ferguson ND. Measuring diaphragm thickness with ultrasound in mechanically ventilated patients: feasibility, reproducibility and validity. Intensive Care Med. 2015 Apr;41(4):642-9. doi: 10.1007/s00134-015-3687-3. Epub 2015 Feb 19.

    PubMed 25693448
  • Epstein SK, Ciubotaru RL, Wong JB. Effect of failed extubation on the outcome of mechanical ventilation. Chest. 1997 Jul;112(1):186-92. doi: 10.1378/chest.112.1.186.

    PubMed 9228375
  • Epstein SK, Ciubotaru RL. Independent effects of etiology of failure and time to reintubation on outcome for patients failing extubation. Am J Respir Crit Care Med. 1998 Aug;158(2):489-93. doi: 10.1164/ajrccm.158.2.9711045.

    PubMed 9700126
  • Parthasarathy S, Jubran A, Laghi F, Tobin MJ. Sternomastoid, rib cage, and expiratory muscle activity during weaning failure. J Appl Physiol (1985). 2007 Jul;103(1):140-7. doi: 10.1152/japplphysiol.00904.2006. Epub 2007 Mar 29.

    PubMed 17395760
  • DiNino E, Gartman EJ, Sethi JM, McCool FD. Diaphragm ultrasound as a predictor of successful extubation from mechanical ventilation. Thorax. 2014 May;69(5):423-7. doi: 10.1136/thoraxjnl-2013-204111. Epub 2013 Dec 23.

    PubMed 24365607
  • Ferrari G, De Filippi G, Elia F, Panero F, Volpicelli G, Apra F. Diaphragm ultrasound as a new index of discontinuation from mechanical ventilation. Crit Ultrasound J. 2014 Jun 7;6(1):8. doi: 10.1186/2036-7902-6-8. eCollection 2014.

    PubMed 24949192
  • Kim WY, Suh HJ, Hong SB, Koh Y, Lim CM. Diaphragm dysfunction assessed by ultrasonography: influence on weaning from mechanical ventilation. Crit Care Med. 2011 Dec;39(12):2627-30. doi: 10.1097/CCM.0b013e3182266408.

    PubMed 21705883
  • Jung B, Moury PH, Mahul M, de Jong A, Galia F, Prades A, Albaladejo P, Chanques G, Molinari N, Jaber S. Diaphragmatic dysfunction in patients with ICU-acquired weakness and its impact on extubation failure. Intensive Care Med. 2016 May;42(5):853-861. doi: 10.1007/s00134-015-4125-2. Epub 2015 Nov 16.

    PubMed 26572511
  • Adler D, Dupuis-Lozeron E, Richard JC, Janssens JP, Brochard L. Does inspiratory muscle dysfunction predict readmission after intensive care unit discharge? Am J Respir Crit Care Med. 2014 Aug 1;190(3):347-50. doi: 10.1164/rccm.201404-0655LE. No abstract available.

    PubMed 25084264
  • Goligher EC, Fan E, Herridge MS, Murray A, Vorona S, Brace D, Rittayamai N, Lanys A, Tomlinson G, Singh JM, Bolz SS, Rubenfeld GD, Kavanagh BP, Brochard LJ, Ferguson ND. Evolution of Diaphragm Thickness during Mechanical Ventilation. Impact of Inspiratory Effort. Am J Respir Crit Care Med. 2015 Nov 1;192(9):1080-8. doi: 10.1164/rccm.201503-0620OC.

    PubMed 26167730
  • Cala SJ, Kenyon CM, Lee A, Watkin K, Macklem PT, Rochester DF. Respiratory ultrasonography of human parasternal intercostal muscle in vivo. Ultrasound Med Biol. 1998 Mar;24(3):313-26. doi: 10.1016/s0301-5629(97)00271-8.

    PubMed 9587987
  • Jesus FM, Ferreira PH, Ferreira ML. Ultrasonographic measurement of neck muscle recruitment: a preliminary investigation. J Man Manip Ther. 2008;16(2):89-92. doi: 10.1179/106698108790818486.

    PubMed 19119393
  • Frutos-Vivar F, Ferguson ND, Esteban A, Epstein SK, Arabi Y, Apezteguia C, Gonzalez M, Hill NS, Nava S, D'Empaire G, Anzueto A. Risk factors for extubation failure in patients following a successful spontaneous breathing trial. Chest. 2006 Dec;130(6):1664-71. doi: 10.1378/chest.130.6.1664.

    PubMed 17166980

Questions about this trial

What is this clinical trial studying?

An observational study of Respiratory Insufficiency, run by Unity Health Toronto at 1 site in Canada.

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 2 inclusion and 4 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: finished, as of the sponsor's last update on 10 Apr 2018. 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 Canada. 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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Comparison of the thickening fraction of each muscle (diaphragm, intercostal, and sternocleidomastoid) between 2 groups of patients regarding the occurrence of extubation failure risk and ICU readmission. (time frame: Up to 7 days after extubation). 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 NCT02853201, which also lists 17 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 10 Apr 2018.

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