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Expiratory Muscle Function in Critically Ill Ventilated Patients (EMFIC)

9. november 2020 opdateret af: Prof.dr. L.M.A. Heunks, Amsterdam UMC, location VUmc

Inspiratory muscle weakness develops rapidly in ventilated critically ill patients and is associated with adverse outcome, including prolonged duration of mechanical ventilation and mortality. Surprisingly, the effects of critical illness on expiratory muscle function have not been studied.

The main expiratory muscles are the abdominal wall muscles, including the external oblique (EO), internal oblique (IO) and transversus abdominis muscles (TRA). These muscles are activated when respiratory drive or load increases, which can be during e.g. exercise, diaphragm fatigue, increased airway resistance, or positive airway pressure ventilation. The abdominal wall muscles are also critical for protective reflexes, such as coughing. Reduced abdominal muscles strength may lead to decreased cough function and thus inadequate airway clearance. This will lead to secretion pooling in the lower airways, atelectasis, and ventilator associated pneumonia (VAP). Studies have shown that decreased cough function is a risk for weaning failure and (re)hospitalization for respiratory complications. Further, high mortality was found in patients with low peak expiratory flow.

Considering the importance of a proper expiratory muscle function in critically ill patients, it is surprising that the prevalence, causes, and functional impact of changes in expiratory abdominal muscles thickness during mechanical ventilation (MV) for critically ill patients are still unknown.

Ultrasound is increasingly used in the ICU for the visualization of respiratory muscles. In a recent pilot study the investigators confirmed the feasibility and reliability of using of ultrasound to evaluate both diaphragm and expiratory abdominal muscle thickness in ventilated critically ill patients (manuscript in preparation). Accordingly, the primary aim of the present study is to evaluate the evolution of abdominal expiratory muscle thickness during MV in adult critically ill patients, using ultrasound data.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

113

Kontakter og lokationer

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Studiesteder

    • Noord-Holland
      • Amsterdam, Noord-Holland, Holland, 1081HV
        • VU University Medical Center

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Patient on mechanical ventilation in the intensive care

Beskrivelse

Inclusion Criteria:

  • Age > 18 years
  • Invasive mechanical ventilation < 48 hours
  • Expected duration of mechanical ventilation > 72 hours

Exclusion Criteria:

  • Past medical history of neuromuscular disorders
  • Mechanical ventilation > 48 hours within the current hospital admission
  • Pregnant women
  • Open abdominal wounds at proposed location of the ultrasound probe, due to recent abdominal surgery

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Abdominal expiratory muscle thickness
Tidsramme: From the date of inclusion until the date of first extubation or date of death from any cause, whichever came first, assessed up to 6 weeks
Thickness of the abdominal expiratory muscles measured in millimeters
From the date of inclusion until the date of first extubation or date of death from any cause, whichever came first, assessed up to 6 weeks

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Diaphragm muscle thickness
Tidsramme: From the date of inclusion until the date of first extubation or date of death from any cause, whichever came first, assessed up to 6 weeks
Thickness of the diaphragm muscle measured in millimeters
From the date of inclusion until the date of first extubation or date of death from any cause, whichever came first, assessed up to 6 weeks
Inflammatory markers
Tidsramme: Within 24 hours after inclusion
Inflammatory markers (TNF-alpha, IL-6, IL-10) at inclusion (measured from blood sample using ELISA technique).
Within 24 hours after inclusion
Applied driving pressure
Tidsramme: From the date of inclusion until the date of first extubation or date of death from any cause, whichever came first, assessed up to 6 weeks
Appplied driving pressuye defined as peak pressure minus total postive end expiratory pressure, and measured in centimetre of water
From the date of inclusion until the date of first extubation or date of death from any cause, whichever came first, assessed up to 6 weeks
Tidal volume
Tidsramme: From the date of inclusion until the date of first extubation or date of death from any cause, whichever came first, assessed up to 6 weeks
Tidal volume measured in liters
From the date of inclusion until the date of first extubation or date of death from any cause, whichever came first, assessed up to 6 weeks
Positive end expiratory pressure
Tidsramme: From the date of inclusion until the date of first extubation or date of death from any cause, whichever came first, assessed up to 6 weeks
Postive end expiratory pressure measure in centimetre of water
From the date of inclusion until the date of first extubation or date of death from any cause, whichever came first, assessed up to 6 weeks
Extubation failure
Tidsramme: From the date of extubation to the date of reintubation, or the date of death from any cause, or the date of ICU discharge, whichever came first, assessed up to 6 weeks
Reintubated after extubation
From the date of extubation to the date of reintubation, or the date of death from any cause, or the date of ICU discharge, whichever came first, assessed up to 6 weeks
Readmission to ICU
Tidsramme: From the date of ICU diascharge to the date of death from any cause, or the date of hospital discharge, whichever came first, assessed up to 6 weeks
Readmitted to ICU after the ICU discharge
From the date of ICU diascharge to the date of death from any cause, or the date of hospital discharge, whichever came first, assessed up to 6 weeks

Samarbejdspartnere og efterforskere

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Sponsor

Efterforskere

  • Ledende efterforsker: Leo M Heunks, Amsterdam UMC, location VUmc

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

15. februar 2017

Primær færdiggørelse (Faktiske)

28. november 2019

Studieafslutning (Faktiske)

16. oktober 2020

Datoer for studieregistrering

Først indsendt

29. marts 2020

Først indsendt, der opfyldte QC-kriterier

31. marts 2020

Først opslået (Faktiske)

3. april 2020

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

10. november 2020

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

9. november 2020

Sidst verificeret

1. november 2020

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • EMFIC

Plan for individuelle deltagerdata (IPD)

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UBESLUTET

IPD-planbeskrivelse

undecided

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