ClinicalTrials.gg
CompletedNCT03463798DYSDIAUpdated Sep 14, 2023

Assesment of New Devices for the Diagnostic Evaluation of Diaphragmatic Dysfunction

An observational study in Diaphragmatic Paralysis and Healthy Volunteers, sponsored by Association pour le Développement et l'Organisation de la Recherche en Pneumologie et sur le Sommeil. Completed at 1 site in France. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-09-14.

Sponsored by Association pour le Développement et l'Organisation de la Recherche en Pneumologie et sur le Sommeil · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
125
Ages
18 Years and older
Sex
All
01

Study summary

this study aim to evaluate wether new, non-invasive and non-contact devices such as Structured Light Plethysmography (SLP) and Sonar would be able to accurately detect and quantify diaphragm dysfunction (mono-or-bilateral) by assessing the asymmetric chest wall motion generated during spontaneous breathing as compared with a classic, standard and invasive technique.

Read the detailed description

The measurements of chest and abdominal wall movements during quiet tidal breathing will be performed simultaneously using SLP and Sonar devices.

Subjects will be asked to sit down on a chair with their neck in a neutral position and their back as straight as possible. The SLP and the Sonar will be lined up to project the grid of light and the ultrasonic wave sonar over the participant's chest and abdomen. Data will be collected during 5 minutes of tidal breathing. The same procedure will be repeated while having the patient lying down in supine position on the same chair for 5 additional minutes. During both sessions (sitting and supine), patients will be asked to perform a gentle inspiratory capacity (IC) maneuver to better appreciate the thoraco-abdominal asymmetry and distortion.

02

Conditions studied

  • Diaphragmatic Paralysis
  • Healthy Volunteers

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Keywords

  • structured light plethysmography
  • sonar
  • transdiaphragmatic pressure
03

In context

Respiratory Paralysis

36 studies on the registry are indexed under Respiratory Paralysis; 9 are open to participants now.

This study's enrollment of 125 is above the median of 66 across 15 observational studies indexed under Respiratory Paralysis.

Browse Respiratory Paralysis studies →

Lead sponsor

Association pour le Développement et l'Organisation de la Recherche en Pneumologie et sur le Sommeil is the lead sponsor of 22 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

Patients with a suspicion of diaphragmatic dysfunction and healthy volunteers without any medical condition.

Eligibility criteria

FOR HEALTHY VOLUNTEERS

Inclusion Criteria:

  • no respiratory disease
  • no neurologic disease
  • no thoracic deformation

Exclusion criteria

  • respiratory disease
  • neurologic disease
  • thoracic deformation

FOR PATIENTS

Inclusion Criteria:

  • patients with a suspicion of diaphragmatic dysfunction

Exclusion Criteria:

  • pregnant women
  • to standard procedure requiring transdiaphragmatic measurement
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
125 participants (actual)
Patient registry
No

Groups and cohorts

  • Patients

    Patients with a suspicion of diaphragmatic dysfunction

    Device: Sonar · Device: Structured light plethysmography (SLP)

  • Healthy volunteers

    Subjects without any medical condition

    Device: Sonar · Device: Structured light plethysmography (SLP)

Interventions

  • DeviceSonar

    Measurements of chest wall and abdominal wall movement will be performed while subjects are breathing quietly

  • DeviceStructured light plethysmography (SLP)

    Measurements of chest wall and abdominal wall movement will be performed while subjects are breathing quietly

06

What researchers measure

Primary outcomes

  1. amplitude of displacement of thoraco-abdominal compartments

    asymmetry of displacement of thoraco-abdominal compartments during tidal breathing and respiratory manoeuvres

    Time frame: 10 minutes

Secondary outcomes

  1. displacement speed of thoraco-abdominal compartments

    asynchrony of displacement of thoraco-abdominal compartments during tidal breathing and respiratory manoeuvres measurement

    Time frame: 10 minutes

07

Study locations

1 site
  • INSERM-UPC UMR_S 1158 Service de Pneumologie et Réanimation, R3S, Groupe Hospitalier Pitié-Salpêtrière
    Paris, 75013, France
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jun 2018 to primary completion in Sep 2021, 39 months.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 7, 2018
First posted
Mar 13, 2018
StartActual
Jun 11, 2018
Primary completionActual
Sep 21, 2021
CompletionActual
Sep 21, 2021
Last update
Sep 14, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 14, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03463798
Lead sponsor
Association pour le Développement et l'Organisation de la Recherche en Pneumologie et sur le Sommeil
Responsible party
Sponsor
First posted
Mar 13, 2018
Start date
Jun 11, 2018
Primary completion
Sep 21, 2021
Completion
Sep 21, 2021
Last update
Sep 14, 2023

Study contacts

Pierantonio LAVENEZIANA, MD, PhD
principal investigator · UMRS_1158

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Sep 2023. You cannot join it, but the record below documents what was studied.

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