Lead Sponsor

Hospital Privado del Sur

Age

18 - 80 years

Sex

ALL

Healthy Volunteers

No

•The criteria for the diagnosis of SCAP included:
•Blood systolic pressure lower than 90 mmHg or blood diastolic pressure lower than 60 mmHg
•RR higher than 30 breaths per minute
•PaO2/FiO2 lower than 250 while breathing through a Venturi mask with a 50% inspired oxygen fraction (FiO2)
•Bilateral or multiple lobar infiltrations evidenced by thorax X-ray, and
•Use of vasopressor drugs

•COPD
•Asthma
•Acute cardiogenic pulmonary edema
•Severe haemodynamic instability (arterial systolic pressure lower than 70 mmHg) or requirements of vasoactive drugs
•Glasgow score equal to or lower than 9 or requiring OTI for airway protection or for recent pulmonary resucitation
•Antecedents of respiratory failure resulting from neuromuscular pathology
•Failure of two or more organs
•Facial deformities; and
•Recent facial, aesophagic and gastric surgeries

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