Table 4

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)41:418:3
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
RER1.05 (0.06)1.05 (0.06) 0.86
V̇E/V̇co2 slope38.3 (5.1)42.5 (7.7)<0.05
Borg/V̇E slope0.16 (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