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

NCT ID: NCT06072339

Last Updated: 2024-10-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-12-19

Study Completion Date

2025-12-26

Brief Summary

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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

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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

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Thoracic Injuries Non-invasive Ventilation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

open-labeled, controlled, randomized study
Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Experimental

The intervention group will benefit from the physiotherapist's use of lung ultrasound for the PEEP adjustment during the first NIV session.

Group Type EXPERIMENTAL

Lung Ultrasound for PEEP setting

Intervention Type OTHER

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.

Non invasive ventilation session

Intervention Type PROCEDURE

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.

Arterial blood gas

Intervention Type BIOLOGICAL

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.

Interview on pain and comfort

Intervention Type OTHER

The investigator physiotherapist interviews the participant to measure pain and comfort scores using a visual analogue scale (score from 0 to 10).

Control

The conventional group will benefit from the NIV under the current terms.

Group Type ACTIVE_COMPARATOR

Non invasive ventilation session

Intervention Type PROCEDURE

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.

Arterial blood gas

Intervention Type BIOLOGICAL

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.

Interview on pain and comfort

Intervention Type OTHER

The investigator physiotherapist interviews the participant to measure pain and comfort scores using a visual analogue scale (score from 0 to 10).

Interventions

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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.

Intervention Type OTHER

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.

Intervention Type PROCEDURE

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.

Intervention Type BIOLOGICAL

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).

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Patients aged 18 or more
* Admitted to intensive care or continuing care for 72 hours or less for blunt chest trauma, defined by the presence of at least one of the following elements on the initial CT scan: fracture(s) of rib(s) / fracture(s) of the sternum / pulmonary contusion / hemothorax
* Acute hypoxemic respiratory failure defined by the administration of oxygen at least 3 L/min with nasal cannula or FiO2≥30% if high flow oxygen therapy.
* Patient with a functional arterial catheter for blood tests

Exclusion Criteria

* Acute respiratory distress, defined by the presence of at least one of the following clinical signs: respiratory rate ˃ 35 / use of accessory inspirators / paradoxal abdominal or thoracic motion
* Imminent need for invasive mechanical ventilation
* Usual contraindication to non-invasive ventilation (undrained pneumothorax, trauma to the face, vigilance disorders, digestive bleeding, hemodynamic instability, intolerance)
* Hypercapnia (PaCO2˃45mmHg)
* Patient unable to cooperate, communicate
* Therapeutic limitation
* Expected length of stay ≤ 48h
* Severe head trauma
* Pregnant or breastfeeding women
* Participation in other clinical research related to respiratory failure/respiratory therapy
* Vulnerable people
* Protected adults, under guardianship or curatorship, or unable to give consent
* Non-affiliated person or beneficiary of a social security scheme
* Absence of free, informed and written consent, signed by the participant and the investigator
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital, Montpellier

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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UH of Montpellier

Montpellier, , France

Site Status RECRUITING

Countries

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France

Central Contacts

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David CHAPEAU, Physiotherapist

Role: CONTACT

0467332688

Facility Contacts

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David CHAPEAU

Role: primary

04 67 33 26 88 ext. +33

Other Identifiers

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RECHMPL22_0556

Identifier Type: -

Identifier Source: org_study_id

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