Table 3: Summary of echocardiographic data of patients (n = 184).
Rest | Stress | p-value | |||
N | Mean ± SD | N | Mean ± SD | ||
Mean transvalvular gradient [mmHg] | 184 | 7.8 ± 3.3 | 184 | 11.6 ± 4.0 | < 0.0001 |
Peak transvalvular gradient [mmHg] | 184 | 14.9 ± 5.2 | 184 | 21.6 ± 6.5 | < 0.0001 |
EOA [cm2] | 184 | 1.86 ± 0.69 | 184 | 1.96 ± 0.71 | < 0.0001 |
EOA index [cm2/m2] | 184 | 1.05 ± 0.37 | 184 | 1.10 ± 0.38 | < 0.0001 |
EF change | 184 | 57% ± 7% | 184 | 59% ± 7.5% | 0.0230 |
N | % | N | % | ||
Intra-aortic regurgitation | 184 | 184 | |||
0 | 164 | 89.1 | 161 | 87.5 | |
1 | 19 | 10.3 | 21 | 11.4 | |
2 | 1 | 0.6 | 2 | 1.1 |
EF: Ejection fraction; EOA: Effective orifice area.