TABLE IV.
Echocardiographic Characteristics of Participants Before and After Surgery, Stratified by Aortic Valve Regurgitation Status
| No change, mean (SD) (n = 75) | Improved aortic valve regurgitation, mean (SD) (n = 38) | |||||
|---|---|---|---|---|---|---|
| Echocardiographic index | Before surgery | After surgery | P valuea | Before surgery | After surgery | P valuea |
| AVPG, mm Hg | 8.7 (4.6) | 7.5 (3.3) | <.001 | 8.5 (4.8) | 6.2 (3.1) | <.001 |
| Aortic root diameter, mm | 31.9 (3.8) | 31.7 (4.1) | .44 | 31.7 (4.1) | 30.1 (3.7) | .02 |
| Ascending aorta diameter, mm | 34.9 (4.1) | 34.8 (3.0) | .76 | 34.2 (4.6) | 34.1 (3.6) | .78 |
| Left ventricular end-diastolic dimension, mm | 51.5 (6.6) | 51.6 (5.7) | .79 | 53.2 (6.7) | 49.6 (6.5) | .001 |
| Left ventricular end-systolic dimension, mm | 35.5 (6.8) | 35.9 (6.6) | .34 | 36.9 (7.6) | 34.8 (7.9) | .003 |
| Intraventricular septum, mm | 10 (1.5) | 9.8 (1.6) | .31 | 10.4 (1.8) | 9.5 (1.7) | .003 |
| Posterior wall, mm | 9.6 (1.3) | 9.6 (1.2) | .93 | 9.9 (1.5) | 9.4 (1.1) | .01 |
| Ejection fraction, % | 45.2 (9.8) | 44.9 (8.9) | .57 | 43.6 (9.9) | 45.3 (9.1) | .22 |
| Left atrium size, mm | 39.4 (5.8) | 38.6 (5.6) | .22 | 38.9 (6.2) | 38.5 (6.3) | .58 |
AVPG, aortic valve pressure gradient.
a
A 2-sided P < .05 was regarded as statistically significant.