COVID-19 is an emerging, rapidly evolving situation.
Get the latest public health information from CDC:

Get the latest research information from NIH: Menu

Study of Diaphragm Mobility on Tissue Doppler (DD)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03295344
Recruitment Status : Unknown
Verified September 2017 by Centre Hospitalier Universitaire Dijon.
Recruitment status was:  Recruiting
First Posted : September 27, 2017
Last Update Posted : September 27, 2017
Information provided by (Responsible Party):
Centre Hospitalier Universitaire Dijon

Brief Summary:

Diaphragm dysfunction is found in 10 to 90% of patients following heart surgery.

In current practice diaphragm dysfunction is evaluated by 2D ultrasonography. Tissue Doppler is a validated technique to study heart contractility. Its use in the analysis of diaphragm function must be evaluated to determine its interest as a diagnostic tool.

Better understanding of diaphragm dysfunction following heart surgery will lead to earlier management of post-operative respiratory complications and the implementation of preventive pre-operative measures.

We intend to look for correlations between the TM (Time-Movement) mode and tissue Doppler in the assessment of diaphragm mobility.

Condition or disease Intervention/treatment
Heart Surgery Other: Diaphragm ultrasonography Other: Tissue Doppler

Layout table for study information
Study Type : Observational
Estimated Enrollment : 300 participants
Observational Model: Other
Time Perspective: Prospective
Official Title: Study of Diaphragm Mobility on Tissue Doppler (Thoracotomy vs Sternotomy in Diaphragm Dysfunction Following Heart Surgery)
Actual Study Start Date : December 2016
Estimated Primary Completion Date : December 2017
Estimated Study Completion Date : December 2017

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Heart Surgery

Group/Cohort Intervention/treatment
Patients Other: Diaphragm ultrasonography

Spontaneously breathing patients in the ½ seated position Heart transducer at the medio axillary position, parallel to the axis of the body, last intervertebral spaces

US mode:

2D = Evaluation of the pulmonary parenchyma Time-Movement (TM) = Evaluation of diaphragm muscle shortening in the apposition zone + Evaluation of diaphragm mobility in the posterior 1/3 of the diaphragm dome Tissue Doppler Imaging (TDI) = Evaluation of diaphragm mobility in the diaphragm dome Collection of different daily clinical data

Healthy volunteers Other: Tissue Doppler
Determine the threshold value for diaphragm mobility

Primary Outcome Measures :
  1. Measure diaphragm movement in TM (Time-Movement), in tissue Doppler [ Time Frame: At baseline ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Patients in the post-operative period following heart surgery

Inclusion Criteria:

  • Post-operative period following heart surgery

Exclusion Criteria:

  • Patients younger than 18 years old
  • Existence of a neuro-muscular disease
  • Widened surgical approach
  • Refusal of the patient
  • Impossibility to see diaphragm movement

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03295344

Layout table for location contacts
Contact: Omar ELLOUZE 03 80 29 30 79 ext +33

Layout table for location information
Chu Dijon Bourogne Recruiting
Dijon, France
Contact: Omar ELLOUZE    03 80 29 30 79 ext +33   
Sponsors and Collaborators
Centre Hospitalier Universitaire Dijon
Layout table for additonal information
Responsible Party: Centre Hospitalier Universitaire Dijon Identifier: NCT03295344    
Other Study ID Numbers: BOUARD ELLOUZE 2016
First Posted: September 27, 2017    Key Record Dates
Last Update Posted: September 27, 2017
Last Verified: September 2017

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No