Table 3 Echocardiographic data at rest and under DSE at follow up.
Variables | at rest | under peak stress | p-value |
|---|---|---|---|
Effective Orifice Area (cm2) | 1.14 ± 0.3 | 1.2 ± 0.4 | NS |
Indexed Effective Orifice Area (cm2/m2) | 0.76 ± 0.20 | 0.75 ± 0.3 | NS |
Maximal velocity (m/sec) | 2.6 ± 0.3 | 4.5 ± 0.5 | <0.0001 |
Mean velocity (m/sec) | 1.7 ± 0.2 | 2.9 ± 0.4 | <0.0001 |
Maximal gradient (mmHg) | 29.2 ± 7.1 | 83.4 ± 21.9 | <0.0001 |
Mean gradient (mmHg) | 16.6 ± 5.8 | 43.2 ± 12.7 | <0.0001 |
Doppler Velocity Index | 0.50 ± 0.1 | 0.48 ± 0.1 | NS |
VTI LVOT (cm) | 32.1 ± 10.5 | 34.2 ± 7.7 | NS |
VTI transprosthetic (cm) | 62.8 ± 13.7 | 72.5 ± 17.3 | 0.032 |
Left Ventricular Ejection Fraction | 58.4 ± 8 | 68 ± 9.9 | <0.008 |
Cardiac Output (L/min) | 4.7 ± 1.6 | 8.2 ± 2 | <0.0001 |
Heart rate (b/min) | 64.5 ± 10 | 100.6 ± 28 | <0.001 |
Systolic pressure (mmHg) | 139 ± 23 | 152 ± 26 | NS |
Diastolic pressure (mmHg) | 77 ± 10.6 | 77 ± 12.5 | NS |
Double Product | 8978 ± 2184 | 15225 ± 5147 | <0.0001 |
Left Ventricular Mass (g) | 191 ± 23.8 | NA |  |
Indexed Left Ventricular Mass (g/m2) | 114 ± 10.6 | NA |  |