1. HFNC oxygenation may reduce hypoxia in patients with obesity undergoing sedated gastrointestinal endoscopy.
2. Severe hypoxia was eliminated in the HFNC group.
3. HFNC oxygenation significantly reduced subclinical respiratory depression.
4. The most common adverse event related to HFNC oxygenation was mild dry mouth.
5. HFNC oxygenation reduced the need for airway intervention.

Source: The BMJ