Study of the Diaphragmatic Function by Transient Elastography (ELASTODIAPH)

The study of diaphragmatic function is usually measured by the pressures and volumes generated by contraction of the diaphragm, which is often difficult (cumbersome technique, difficulty to obtain a perfect cooperation of the subjects, and difficulty to specifically analyze the diaphragm compared to other accessory respiratory muscle groups). In this study, the investigators aimed at analysing diaphragmatic function by measuring the shortening, stiffness, strain and thickening of the diaphragm by ultrasound.

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Key information

Conditions

Healthy

Age range

18 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Pitie Salpêtrière Hospital

Paris, 75013, France

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

healthy volunteer

Exclusion criteria

chronic respiratory, neurologic or cardiac disease
swallowing disorders
pregnancy

Treatment and study plan

Ultrasound

Diagnostic Test

Volitional and non volitional respiratory tasks

Other names: Magnetic and electrical phrenic nerve stimulation

Primary outcomes

Transdiaphragmatic pressure

Time frame: 2 hours

The transdiaphragmatic pressure is the sum of absolute values of gastric and oesophagal pressures

Sponsors and collaborators

Lead sponsor

Association pour le Développement et l'Organisation de la Recherche en Pneumologie et sur le Sommeil

Other

Registry information

Official study title

Study of the Diaphragmatic Function by Transient Elastography : Comparison With Mechanical and Electrophysiological Variables

Acronym: ELASTODIAPH

Important dates

Study start: 2017
Primary completion: 2017
Study completion: 2017
First posted: Oct 18, 2017
Registry last updated: Dec 19, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed