Systems on Top of Nasal Cannula Improve Oxygen Delivery in Patients with COVID-19: a Randomized Controlled Trial.
William PoncinLia BaudetFrederic BraemGregory ReychlerFrédéric DuprezGiuseppe LiistroLeila BelkhirJean Cyr YombiJulien De GreefPublished in: Journal of general internal medicine (2022)
The addition of the surgical facemask or the double-trunk mask above the nasal cannula improves arterial oxygenation and reduces oxygen consumption.