Table 3.
Clinical and echocardiographic data of studies without valvular outflow obstruction according to AVA > or ≤ 1.5 cm2
| AVA >1.5 cm2 | AVA ≤1.5 cm2 | P value | |
| Patients, n | 11 980 | 710 | |
| Studies, n | 13 774 | 856 | |
| Aortic valve type, n (%) | <0.001 | ||
| Normal | 7932 (58) | 256 (30) | |
| Sclerosis | 5842 (42) | 600 (70) | |
| Age, years | 65±19 | 76±17 | <0.001 |
| Sex male, n (%) | 6422 (54) | 188 (27) | <0.001 |
| Body surface area, m2 | 1.79±0.21 | 1.63±0.18 | <0.001 |
| Peak aortic jet velocity, cm/s | 139±32 | 169±34 | <0.001 |
| Stroke volume (mL) | 71±21 | 41±11 | <0.001 |
| Aortic time–velocity integral, cm | 29±7 | 34±9 | <0.001 |
| LVOT diameter, cm | 2.1±0.2 | 1.9±0.2 | <0.001 |
| LVOT time–velocity integral, cm | 21±5 | 18±5 | <0.001 |
| LV end diastolic volume, mL | 114±50 | 126±57 | 0.02 |
| LV end systolic volume, mL | 59±41 | 76±51 | <0.001 |
| LV ejection fraction, % | 58±10 | 54±12 | <0.001 |
| LV mass index, g/m2 | 85±27 | 91±29 | 0.02 |
| Relative wall thickness | 0.4±0.1 | 0.5±0.2 | 0.18 |
| Mitral regurgitation, n (%) | <0.001 | ||
| 0–I | 8715 (63) | 425 (50) | |
| II | 3733 (27) | 219 (26) | |
| III | 1055 (8) | 142 (17) | |
| IV | 271 (2) | 70 (8) |
Data presented as mean±SD, except otherwise indicated.
AVA, aortic valve area; LVOT, left ventricular outflow tract.