Table 4: Summary of echocardiographic data of patients according to valve size (n = 184).

Parameter Valve size Rest ST P-value
N Mean ± SD Mean ± SD 0.0310
Peak transvalvular gradient [mmHg] 19 mm 3 21.3 ± 6.0 28.0 ± 8.0 < 0.0001
21 mm 17 15.8 ± 3.8 24.6 ± 3.3 < 0.0001
23 mm 45 17.1 ± 3.5 23.9 ± 5.1 < 0.0001
25 mm 41 15.8 ± 5.3 22.6 ± 6.6 < 0.0001
27 mm 37 14.5 ± 7.0 21.0 ± 8.4 < 0.0001
29 mm 41 11.2 ± 2.8 17.0 ± 3.8 0.0351
Mean transvalvular gradient [mmHg] 19 mm 3 12.0 ± 3.6 15.0 ± 4.6 < 0.0001
21 mm 17 8.5 ± 3.0 13.4 ± 2.4 < 0.0001
23 mm 45 8.6 ± 2.1 12.9 ± 3.2 < 0.0001
25 mm 41 8.9 ± 3.6 12.4 ± 4.6 < 0.0001
27 mm 37 7.6 ± 4.0 10.8 ± 4.7 < 0.0001
29 mm 41 5.3 ± 1.6 9.0 ± 2.2 -
Effective orifice area [cm2] 19 mm 3 0.93 ± 0.06 0.93 ± 0.06 0.0800
21 mm 17 1.25 ± 0.17 1.27 ± 0.19 0.0015
23 mm 45 1.44 ± 0.41 1.53 ± 0.46 < 0.0001
25 mm 41 1.83 ± 0.67 1.94 ± 0.72 0.0008
27 mm 37 1.97 ± 0.65 2.11 ± 0.63 0.0002
29 mm 41 2.58 ± 0.39 2.68 ± 0.39 -
Effective orifice area index [cm2/m2] 19 mm 3 0.64 ± 0.09 0.64 ± 0.09 0.0816
21 mm 17 0.79 ± 0.14 0.80 ± 0.16 0.0030
23 mm 45 0.87 ± 0.29 0.92 ± 0.32 < 0.0001
25 mm 41 1.06 ± 0.40 1.13 ± 0.43 0.0014
27 mm 37 1.06 ± 0.35 1.14 ± 0.34 0.0003
29 mm 41 1.35 ± 0.26 1.40 ± 0.26 0.0003