The investigators aim to investigate the effects of prone positioning and prone positioning with NO inhalation for COVID-19 patients with ARDS. Patients with COVID-19-associated ARDS were ventilated in prone position with or without NO inhalation, the arterial blood gas (ABG) tests were performed at 16 hours after prone positioning.
The investigators aim to investigate the effects of prone positioning and prone positioning with NO inhalation for COVID-19 patients with ARDS.