A case report of pneumomediastinum in a COVID‐19 patient treated with high‐flow nasal cannula and review of the literature: Is this a “spontaneous” complication?

Oxygen support with high-flow nasal cannula (HFNC) is gentler than mechanical ventilation and may provide significant benefits, but more studies are needed to investigate the efficacy and safety of different respiratory supports in patients with COVID-19 pneumonia.