Examining lung ultrasound and oxygen levels after heart surgery

Study of the Relationship Between the Relative Variation of PaO2/FiO2 and the Variation of Lung Ultrasound Score During the First Session of Physiotherapy Associated With Non-invasive Ventilation in Cardiac Surgery Patients by Cardiopulmonary Bypass

Not applicable Interventional Central Hospital, Nancy, France · NCT05470686

This study is testing if lung ultrasound results can help doctors understand how well patients are breathing after heart surgery.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment80 (estimated)
Ages18 Years and up
SexAll
SponsorCentral Hospital, Nancy, France Academic / other
Locations1 site (Vandœuvre-lès-Nancy)
Trial IDNCT05470686 on ClinicalTrials.gov

What this trial studies

This study investigates the relationship between lung ultrasound scores and the oxygenation state of patients following cardiac surgery. It aims to determine if changes in the PaO2/FiO2 ratio correlate with lung ultrasound scores, providing a non-invasive method to assess respiratory function. The study involves patients who have undergone heart surgery and are receiving physiotherapy and non-invasive ventilation. By establishing this relationship, the study seeks to enhance the evaluation tools available to physiotherapists in managing post-surgical respiratory complications.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older who have undergone heart surgery and are prescribed non-invasive ventilation and physiotherapy.

Not a fit: Patients who experience cardiorespiratory arrest or require reintubation during the inclusion visit will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved monitoring and management of respiratory function in patients after heart surgery.

How similar studies have performed: While lung ultrasound is gaining traction in clinical settings, this specific correlation between lung ultrasound scores and oxygenation post-heart surgery is novel and has not been extensively studied.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Person having received complete information on the organization of the research and having given written consent to participate
* Person having benefited from a heart surgery under cardio-pulmonary bypass
* Medical prescriptions for non invasive ventilation and physiotherapist
* Age ≥ 18 years
* 18.5 ≤ BMI ≤ 35 kg/m2
* Visual Analogy Scale pain \< 4
* Patient conscious and oriented: Glasgow 15/15

Exclusion Criteria:

* At the patient's request : a patient may withdraw from the research at any time without affecting the quality of care to which he or she is entitled (withdrawal of consent).
* Cardiorespiratory arrest during the inclusion visit.
* Need for orotracheal reintubation during the inclusion visit.
* Patient non-cooperation during the inclusion visit.
* Failure of the ultrasound machine during the inclusion visit.
* Failure of the blood gas analyzer.
* Glasgow \< 15 during the inclusion visit
* PEEP \> 6 cmH2O required during physiotherapy + non invasive ventilation session
* PEEP \< 6 cmH2O required during physiotherapy + non invasive ventilation session
* Premature interruption of the physiotherapy session + non invasive ventilation not hemodynamically tolerated
* Need for a session of non invasive ventilation + physiotherapy \> 30 minutes.

Where this trial is running

Vandœuvre-lès-Nancy

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Heart Surgeryheart surgeryLung ultrasound scorePaO2/FiO2 rationphysiotherapyNon invasive ventilation
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.