NCT06072339

Optimization of Positive End Expiratory Pressure by Use of Pulmonary Ultrasound for Patients With Blunt Chest Trauma Treated by Non-Invasive Ventilation (Opti-PEP).

Optimization of Positive End Expiratory Pressure by Use of Pulmonary Ultrasound for Patients With Blunt Chest Trauma Treated by Non-Invasive Ventilation : Randomized Controlled Study (Opti-PEP).

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 40 (estimated)
• Sponsor: University Hospital, Montpellier · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This is an open-label, randomized controlled study comparing two non-invasive ventilation initiation strategies.Patients may be included if they present with acute respiratory failure related to blunt chest trauma.The intervention group will benefit from the use by the physiotherapist of pulmonary ultrasound for the adjustment of Positive End Expiratory Pressure (PEEP) during the 1st session. The conventional group will benefit from the non-invasive ventilation according to the current care.

Detailed description

This is an open-label, randomized controlled study comparing two non-invasive ventilation initiation strategies. Patients may be included if they are admitted to intensive care unit or continuing care unit and present with acute respiratory failure related to blunt chest trauma. We will not include patients with another indication for non-invasive ventilation, immediately needing invasive ventilation, a contraindication to non invasive ventilation or an estimated length of stay less than or equal to 48 hours. Both groups will be treated with non-ivasive ventilation according to the medical prescription. The intervention group will benefit from the use by the physiotherapist of pulmonary ultrasound for the adjustment of PEEP during the 1st session. The conventional group will benefit from the non-invasive ventilation according to the usual care. The other non-invasive ventilation settings will be chosen with the same method in both groups. The main endpoint will be the PaO2/FiO2 ratio (Arterial oxygen pressure / inspired fraction of oxygen) after 30 min of non-invasive ventilation treatment. This ratio is the best reflection of the patient oxygenation and currently used for respiratory therapies studies.

Conditions

• Thoracic Injuries
• Non-invasive Ventilation

Interventions

Type	Name	Description
OTHER	Lung Ultrasound for PEEP setting	NIV is started and adjusted by the physiotherapist. For the adjustment of PEEP, the ultrasound probe is placed on the thorax, facing the intercostal space having obtained the highest score during the initial LUS (synonym of the worst pulmonary aeration) and the images observed in real time. PEEP is increased until the physiotherapist cannot see any additional benefit on pulmonary aeration or appearance of a patient discomfort or an increasing of air leaks.
PROCEDURE	Non invasive ventilation session	The session will be done via a mouthpiece preferably, or a face mask if it is impossible for the patient to close their mouth properly or to hold the mouthpiece. The duration of the NIV session will be defined by the prescribing doctor (usually between 30 and 60 minutes), without being able to be less than 30 minutes. The session will be stopped in the event of the appearance of one of the contraindications to NIV mentioned above.
BIOLOGICAL	Arterial blood gas	Arterial blood gas will be done at inclusion, at Visit 1 (at the 30th minute from the start of the 1st Non-invasive ventilation session) and at Visit 2 (at the 60th minute from the start of the 1st Non-invasive ventilation session) in both groups of patients in order to calculate the Pa02/Fi02 ratio.
OTHER	Interview on pain and comfort	The investigator physiotherapist interviews the participant to measure pain and comfort scores using a visual analogue scale (score from 0 to 10).

Timeline

• Start date: 2023-12-19
• Primary completion: 2025-12-19
• Completion: 2025-12-26
• First posted: 2023-10-10
• Last updated: 2024-10-04

Locations

1 site across 1 country: France