What do systematic reviews say?

Titrated oxygen therapy vs high‐flow oxygen therapy

Titrated oxygen therapy showed no clear difference in ventilation of any type compared with high‐flow oxygen therapy (low certainty).

• Oxygen therapy in the pre‐hospital setting for acute exacerbations of chronic obstructive pulmonary disease 2020 · Cochrane Headline outcomes only
  RR 0.67 [0.29, 1.55]
  1 study · 189 participants
  Low