Table 1 Baseline characteristics in patients randomly allocated to high-flow nasal oxygen therapy (HFNT) or standard oxygen therapy (SOT) during sedation for transcatheter aortic valve replacement. Values are mean (SD), number (proportion) or median (IQR [range])
Variable | High-flow nasal oxygen therapy n = 36 | Standard oxygen therapy n = 36 |
|---|---|---|
Age; years | 83.19 (5.73) | 81.80 (6.65) |
Sex | ||
 Male | 23 (63.9%) | 21 (58.3%) |
 Female | 13 (36.1%) | 15 (41.7%) |
Body mass index; kg m−2 | 26.10 (3.93) | 29.01 (5.90) |
Body surface area; m2 | 1.82 (0.20) | 1.87 (0.24) |
Euro-SCORE | 3.06 (1.88–4.89 [0.72–30.82]) | 3.08 (1.98–4.64[1.01–31.35]) |
ASA physical status | ||
 2 | 4 (11.1%) | 3 (8.3%) |
 3 | 18 (50.0%) | 19 (52.8%) |
 4 | 14 (38.9%) | 14 (38.9%) |
 Smoking status | ||
 Current smoker | 2 (5.6%) | 2 (5.6%) |
 Never smoker | 22 (61.1%) | 18 (50.0%) |
 Previous smoker | 12 (33.4%) | 16 (44.4%) |
 Asthma | 3 (8.3%) | 3 (8.3%) |
 COPD | 3 (9%) | 3 (9%) |
 Inhaler therapy | 6 (16.7%) | 4 (11.1%) |
 Previous cardiac surgery | 15 (41.7%) | 7 (19.4%) |
 Oxygen saturation on room air, % | 96.61 (2.35) | 96.86 (2.45) |
 Baseline NIRS, L, % | 63.28 (5.59) | 63.14 (8.79) |
 Baseline NIRS, R, % | 63.11 (7.07) | 63.72 (7.10) |