EIT Assessment of Overdistension in ARDS Patients in Prone Position

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

Total Enrollment

20 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-10-15

Study Completion Date

2026-05-31

Brief Summary

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Mechanical ventilation in ARDS requires protective ventilation with low VT and PEEP. PEEP titration can improve lung recruitment in the dependent lung but with a risk of overdistension in the non-dependant lung. EIT can measure the distribution of tidal ventilation and assess overdistension and collapse during a PEEP titration in any position (prone or not).

This study aims to measure the best PEEP as a compromise between recruitment and overdistension during a PEEP trial with EIT before and just after PP.

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Detailed Description

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Conditions

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Acute Respiratory Distress Syndrome

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Study group

Patients with moderate or severe ARDS treated with PP equipped with EIT will be included.

Measurement of EIT data and ventilator spirometry in supine position and just after turning the patient in PP during a decremental PEEP-EIT titration, will be done, and blood gases and finally haemodynamic data

Acute Respiratory Distress Syndrom (ARDS) treated with Prone Position (PP) equipped with Electrical Impedance Tomography (EIT)

Intervention Type OTHER

Positive End-Expiratory Pressure (PEEP) will be titrated with PEEP-EIT method as it is already done in usual care. A classical low flow Pression Volume (PV) curve will be done in order to detect airway closure and measure compliance, the acquisition of EIT data during PV curve will be analysed secondary with a dedicated software. Reconstruction of EIT derived PV curve will determine the regional airway opening pressures and compliances of the 2 lungs. Two decremental PEEP-EIT titrations will be compared, one in supine and the other just after turning in prone.

Interventions

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Acute Respiratory Distress Syndrom (ARDS) treated with Prone Position (PP) equipped with Electrical Impedance Tomography (EIT)

Positive End-Expiratory Pressure (PEEP) will be titrated with PEEP-EIT method as it is already done in usual care. A classical low flow Pression Volume (PV) curve will be done in order to detect airway closure and measure compliance, the acquisition of EIT data during PV curve will be analysed secondary with a dedicated software. Reconstruction of EIT derived PV curve will determine the regional airway opening pressures and compliances of the 2 lungs. Two decremental PEEP-EIT titrations will be compared, one in supine and the other just after turning in prone.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Patients hospitalized in the ICU and who suffered moderate or severe ARDS (Berlin criteria, PaO2/FiO2\<150), intubated sedated, under myorelaxant and equipped with EIT
* Over the age of 18.

Exclusion Criteria

* Broncho-pleural leaks
* Pregnant or breastfeeding woman.
* Guardianship or curatorship
* Deprived of liberty
* No health insurance
* Impossibility to correctly position the EIT belt (e.g., dressings, chest drainage, etc.)
* Contra indications to EIT (e.g., implantable cardiac defibrillator, pacemaker, instable spinal lesions)

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No