Fig. 3

Percentage change in arterial partial pressure of oxygen (pO2) and arterial partial pressure of carbon dioxide (pCO2) in both high-flow nasal oxygen (HFNT) and standard oxygen therapy (SOT) groups from 0 to 30Â min during transfemoral transcatheter aortic valve implantation (TAVR) in patients randomly allocated to HFNT or SOT