Lead Sponsor

University Hospital, Brest

Collaborators

Age

18 - No limit years

Sex

ALL

Healthy Volunteers

No

•Admission to the emergency for respiratory disease (or cardiac - acute pulmonary edema)justifying an oxygen administration to over 3 L / min to maintain a SpO2 ≥ 92%.
•Inclusion within a time less than two hours after the start of the oxygen at the emergency.
•Patient consent,or a close.

•Necessity of an oxygen flow exceeds 15 L / min to maintain a SpO2 higher than 92%.
•Criteria of gravity justifying immediately a different technique of ventilatory support:
•Disturbance of consciousness with a Glasgow Coma Score ≤ 12
•Serious ventricular rhythm disorders
•Hemodynamic instability (SBP \<80mmHg or recourse to vasopressors)
•Cardiac or respiratory arrest
•pH \< 7.35 and PaCO2 \> 55 mm Hg
•Necessity of a urgent surgery, or coronary revascularization
•Age \<18 years
•Pregnant women, lactating
•Patient not relevant
•Unavailability of the prototype FreeO2

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