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NCT03802383

The Relationship Between Trans-diaphragmatic Pressure and Diaphragmatic Contraction

Status unknown Last updated 26 March 2024
What this trial tests

trial in Weaning Failure in 30 participants. Status unknown.

Timeline
29 June 2018
Primary endpoint
30 June 2024
30 June 2024

Quick facts

Lead sponsorUniversity of Thessaly
StatusStatus unknown
Study typeOBSERVATIONAL
Enrollment30
Start date29 June 2018
Primary completion30 June 2024
Estimated completion30 June 2024
Sites1 location across Greece

Conditions studied

Sponsor

University of Thessaly

Who can join

18 and older, any sex, with Weaning Failure or Respiratory Paralysis. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Through this study the investigators aim to clarify the relationship between trans-diaphragmatic pressure and various parameters of the diaphragmatic contraction evaluated by ultrasound. Moreover, a lung ultrasound exam will be performed at the end of spontaneous breathing, resistive breathing and maximal inspiratory pressure maneuver (MIP) in order to assess with the use of B-lines for extravascular lung water (EVLW). The following parameters will be studied: esophageal pressure, gastric pressure, diaphragm thickness at peak inspiration (Tdi,pi), diaphragm thickness at end expiration (Tdi,ee), diaphragm thickening (Tdi,pi - Tdi,ee), diaphragm thickness fraction \[TFdi=(Tdi,pi - Tdi,ee)/Tdi,ee\], diaphragm excursion (Dec), Maximal Inspiratory pressure (M.I.P), Pressure-Time product of the esophageal pressure (PΤPes),Tension Time Diaphragm Index (T.T.Di) and the rapid shallow breathing index (R.S.B.I.). These measurements will be made in two phases.Firstly, during the spontaneous breathing trial and secondly during spontaneous breathing through an airway of reduced diameter.Furthermore, during the M.I.P. test the aforementioned ultrasound parameters will be measured. The aim of this study is to discover new means of a successful prediction of weaning in the first 48 hours following extubation.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

  1. Diaphragmatic ultrasound and its relationship to breathing effort and load: a prospective observational study.
    Menis AA, Tsolaki V, Papadonta ME, Vazgiourakis V, et al · · 2025 · PMID 40361191 · DOI 10.1186/s13054-025-05436-1

Verify or expand the search:

Other recruiting trials for Weaning Failure

Currently open trials in the same condition.

Other University of Thessaly trials

Trials by the same sponsor.

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