Echocardiographic and catheter-derived data before and after primary intervention
| Non-critical (n=42) | Critical (n=65) | P value | |
| LVEDd, cm | 1.71 (0.29) | 1.94 (0.46) | 0.005 |
| LVEDd, z-score | −1.25 (1.43) | 0.05 (2.30) | 0.001 |
| lVSd, cm | 0.50 (0.12) | 0.48 (0.15) | 0.611 |
| IVSd, z-score | 1.53 (1.27) | 1.04 (1.28) | 0.095 |
| LVPWd, cm | 0.40 (0.11) | 0.46 (0.13) | 0.26 |
| LVPWd, z-score | 0.93 (1.48) | 2.12 (1.37) | <0.001 |
| LVFS, % (median, range) | 39 (28–58) | 24 (5–53) | <0.001 |
| LVFS <28%, n (%) | 0 | 47(78) | <0.001 |
| Aortic annulus, mm | 7.37 (1.15) | 6.37 (1.02) | <0.001 |
| Aortic annulus, z-score | 0.3 (1.53) | −0.97 (1.49) | <0.001 |
| Peak aortic gradient, mm Hg | 101 (25) | 42 (22) | <0.001 |
| Residual peak aortic gradient, mm Hg | 39 (18) | 42 (22) | 0.478 |
| Mean aortic gradient, mm Hg | 55 (13) | 44 (21) | 0.004 |
| Residual mean aortic gradient, mm Hg | 24 (9.3) | 25 (13) | 0.781 |
| Peak aortic jet velocity, m/s | 5.0 (0.58) | 4.2 (1.08) | 0.000 |
| Residual peak aortic jet velocity, m/s | 3.0 (0.77) | 3.1 (0.8) | 0.459 |
| Catheter derived gradients | |||
| Catheter gradient at BAV, mm Hg | 60 (15) | 67 (42) | 0.849 |
| Residual catheter gradient, mm Hg | 38 (87) | 33 (21) | 0.747 |
| Aortic regurgitation after intervention, n (%) | |||
| None | 13 (31) | 23 (35) | |
| Trivial | 18 (43) | 33 (51) | |
| Mild | 4 (10) | 7 (11) | |
| Moderate | 0 | 0 | |
| Severe | 0 | 0 | |
Values represent mean (SD), except where otherwise stated.
BAV, balloon aortic valvotomy; IVSd, interventricular septum end-diastole; LVEDd, left ventricular end-diastolic dimension; LVFS, left ventricular fractional shortening; LVPWd, left ventricular posterior wall end-diastole.