Patients with coronavirus disease (COVID-19) and pneumonitis often have hypoxemic respiratory failure and a need of supplementary oxygen. Guidelines recommend controlled oxygen, for most patients with a recommended interval of SpO2 between 92 and 96 %. We aimed to determine if closed-loop control of oxygen was feasible in patients with COVID-19 and could maintain SpO2 in the specified interval.
Patients with coronavirus disease (COVID-19) and pneumonitis often have hypoxemic respiratory failure and a need of supplementary oxygen. Guidelines recommend controlled oxygen, for most patients with a recommended interval of SpO2 between 92 and 96 %. We aimed to determine if closed-loop control of oxygen was feasible in patients with COVID-19 and could maintain SpO2 in the specified interval. Patients were prospectively enrolled in an observational study on a medical ward dedicated to patients with COVID-19. Closed-loop controlled oxygen was delivered by O2matic® which can deliver 0-15 liters/min and adjusts flow every second based on 15 seconds averaging of SpO2 measured by pulse oximetry. Lung function parameters were measured at admission.
Study Type
OBSERVATIONAL
Enrollment
16
Closed-loop control of oxygen supplementation to achieve a target SpO2 of 92 - 96 %
Hvidovre University Hospital
Copenhagen, Denmark
Time in SpO2 target
Time in SpO2 target of 92-96 %
Time frame: 1 week
Time with SpO2 not more than 2 % outside target
Time with SpO2 not more than 2 % outside target
Time frame: 1 week
Time with SpO2 more than 2 % outside target
Time with SpO2 more than 2 % outside target
Time frame: 1 week
Time with SpO2 < 85 %
Time with SpO2 \< 85 %
Time frame: 1 week
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