For spontaneous breathing patients with tracheostomy, whose lower airway is directly opened to the room air, the aerosol particles generated by the patients would be directly dispersed into the room air, which might be an direct resource of virus transmission. However, the transmission risk has not been evaluated and the appropriate humidification therapy is unknown. Thus this study is aimed to investigate the aerosol particle concentrations among different oxygen devices for spontaneous breathing patients with tracheostomy, in order to reflect the transmission risk.
The transmission route of the SARS-CoV-2 virus remains controversial, and concerns persist of potentially increased virus transmission when utilizing high-flow devices and aerosol devices among COVID-19 patients. For spontaneous breathing patients with tracheostomy, whose lower airway is directly opened to the room air, the aerosol particles generated by the patients would be directly dispersed into the room air, which might be an direct resource of virus transmission. However, the transmission risk of tracheostomy during spontaneous breathing has not been evaluated and the appropriate humidification therapy is unknown. Thus this study is aimed to investigate the aerosol particle concentrations among different oxygen devices for spontaneous breathing patients with tracheostomy, in order to reflect the transmission risk.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Enrollment
12
This device can provide heat and humidified gas for spontaneous breathing patients with tracheostomy at a high gas flow rate.
Rush University Medical Center
Chicago, Illinois, United States
Aerosol Particle Concentrations With Size of 1-3 Micrometer at 1 Foot Away From the Patient
aerosol particle concentrations (the concentrations of particles inside the room air, the unit is particles per cubic meters) at 1 foot away from the patient
Time frame: 5 minutes after using the device
Aerosol Particle Concentrations With Size of <0.3 Micrometer at 1 Foot Away From the Patient
aerosol particle concentrations (the concentrations of particles inside the room air, the unit is particles per cubic meters) at 1 foot away from the patient
Time frame: 5 minutes after using the device
Aerosol Particle Concentrations With Size of 0.3-0.5 Micrometer at 1 Foot Away From the Patient
aerosol particle concentrations (the concentrations of particles inside the room air, the unit is particles per cubic meters) at 1 foot away from the patient
Time frame: 5 minutes after using the device
Aerosol Particle Concentrations With Size of 0.5-1 Micrometer at 1 Foot Away From the Patient
aerosol particle concentrations (the concentrations of particles inside the room air, the unit is particles per cubic meters) at 1 foot away from the patient
Time frame: 5 minutes after using the device
Aerosol Particle Concentrations With Size of 3-5 Micrometer at 1 Foot Away From the Patient
aerosol particle concentrations (the concentrations of particles inside the room air, the unit is particles per cubic meters) at 1 foot away from the patient
Time frame: 5 minutes after using the device
Aerosol Particle Concentrations With Size of 5-10 Micrometer at 1 Foot Away From the Patient
aerosol particle concentrations (the concentrations of particles inside the room air, the unit is particles per cubic meters) at 1 foot away from the patient
Time frame: 5 minutes after using the device
Patient Comfort With Different Oxygen Devices
Patients would scale their comfort on a 5-point Likert scale, 1 was the most uncomfortable, and 5 was the most comfortable.
Time frame: 5 minutes after using the device
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