Ventilatory variables in patients according to New York Heart Association (NYHA) functional class
| NYHA II (n=27) | NYHA III (n=18) | p Value | |
|---|---|---|---|
| FEV1 (% expected) | 2.42 (0.4) | 2.42 (0.5) | 0.98 |
| FVC(% expected) | 3.21 (0.7) | 3.05 (0.7) | 0.50 |
| Sex (male:female) | 41:4 | 18:3 | |
| LVEDD (cm) | 6.5 (0.8) | 6.6 (0.9) | 0.65 |
| LVEF (%) | 34.0 (5.4) | 33.1 (5.5) | 0.71 |
| PV̇o2 (ml/kg/min) | 20.8 (4.7) | 18.0 (3.6) | 0.19 |
| Exercise time (s) | 456 (140) | 367 (100) | <0.05 |
| Anaerobic threshold (ml/kg/min) | 15.3 (3.9) | 12.8 (2.7) | 0.15 |
| RER | 1.05 (0.06) | 1.05 (0.06) | 0.86 |
| V̇E/V̇co2 slope | 38.3 (5.1) | 42.5 (7.7) | <0.05 |
| Borg/V̇E slope | 0.16 (0.06) | 0.2 (0.07) | <0.05 |
| V̇E peak (l/min) | 66.0 (13.2) | 65.4 (14.2) | 0.90 |
| Vt peak (l) | 1.8 (0.4) | 1.7 (0.3) | 0.38 |
| f peak (breaths/min) | 37.3 (6.5) | 39.3 (7.1) | 0.33 |
| Time to IP (s) | 301 (110) | 225 (95) | <0.05 |