TABLE III.
Echocardiographic Characteristics of Participants Before and After Surgery
| Mean (SD) | ||||
|---|---|---|---|---|
| Echocardiographic index | Before surgery | After surgery | Cohen d | P valuea |
| AVPG, mm Hg | 8.9 (4.8) | 7.1 (3.3) | 0.44 | <.001 |
| Aortic root diameter, mm | 31.9 (3.9) | 31.1 (4.1) | 0.20 | .02 |
| Ascending aorta diameter, mm | 34.7 (4.3) | 34.6 (3.3) | 0.02 | .68 |
| Left ventricular end-diastolic dimension, mm | 52.1 (6.7) | 50.9 (6.1) | 0.19 | .02 |
| Left ventricular end-systolic dimension, mm | 35.9 (6.8) | 35.5 (7.1) | 0.06 | .27 |
| Intraventricular septum, mm | 10.1 (1.6) | 9.7 (1.6) | 0.25 | .01 |
| Posterior wall, mm | 9.7 (1.4) | 9.5 (1.2) | 0.15 | .12 |
| Ejection fraction, % | 44.7 (9.8) | 45 (8.9) | 0.03 | .56 |
| Left atrium size, mm | 39.1 (5.9) | 38.6 (5.8) | 0.09 | .20 |
AVPG, aortic valve pressure gradient.
a
A 2-sided P < .05 was regarded as statistically significant.