30
Participants
Start Date
September 19, 2023
Primary Completion Date
May 30, 2024
Study Completion Date
May 30, 2024
Arterial blood gases
Measurement of arterial oxygen and tension and arterial dioxide tension, calculation of arterial partial oxygen tension to inspiratory oxygen fraction (PaO2/FiO2) ratio
Respiratory rate (RR)
Measurement of respiratory rate by waveform analysis using a ventilator
Pulseoximeter
Peripheral capillary oxygen saturation (SpO2) measurement and the ROX-index calculation (SpO2/FiO2/RR)
Assessment of accessory respiratory muscles work
Patrick score calculation. Score: 0. No visible tonic or phasic use of neck muscles. 1. Neck muscles taut but with no respiratory modulation (i.e., tonic activity). 2. Mild respiratory modulation in neck muscle contraction. 3. Moderate phasic activity (no supraclavicular or intercostal indrawing). 4. Vigorous phasic activity with indrawing. 5. Vigorous phasic activity with abdominal paradox.
Esophageal pressure measurement
Esophageal pressure measurement on inspiration and expiration with calculation of delta esophageal pressure, transpulmonary pressure and delta transpulmonary pressure
Discomfort Visual Analog Scale (VAS)
From 1 to 10 points, where 1 point - maximal discomfort, 10 points - minimal discomfort.
Noninvasive blood pressure
Noninvasive blood pressure
Heart rate
Heart rate calculation using electrocardiogram monitoring
City clinical hospital named after F.I.Inozemtsev, Moscow, Moscow
I.M. Sechenov First Moscow State Medical University
OTHER