Table 6. Echocardiographic parameters for predominant AS study population.
| Variable | Preoperative echo | Last postoperative echo | P value | ||
|---|---|---|---|---|---|
| Group 1: isolated AS | |||||
| LVEDD (mm) (n=270) | 48.6±7.2 | 46.6±7.3 | <0.001 | ||
| LVESD (mm) (n=261) | 31.5±8.2 | 31.5±10.5 | 0.998 | ||
| LVPW (mm) (n=267) | 11.4±2.3 | 10.7±2.1 | <0.001 | ||
| LVS (mm) (n=262) | 12.2±2.7 | 11.7±2.3 | 0.002 | ||
| LVEF (n=434) | 60.2±12.4 | 61.1±11.3 | 0.128 | ||
| RV dysfunction (n=337) | Mild or less | Moderate-severe | Mild or less | Moderate-severe | <0.001 |
| Frequency (n) | 331 (98%) | 6 (2%) | 315 (93%) | 22 (7%) | |
| MR grade (n=426) | Mild or less | Moderate-severe | Mild or less | Moderate-severe | 0.261 |
| Frequency (n) | 381 (89%) | 45 (11%) | 373 (88%) | 53 (12%) | |
| Group 2: AS + moderate or greater AI | |||||
| LVEDD (mm) (n=70) | 50.9±8.4 | 46.9±7.4 | <0.001 | ||
| LVESD (mm) (n=69) | 34.0±8.9 | 31.9±8.7 | 0.059 | ||
| LVPW (mm) (n=68) | 12.0±2.2 | 11.0±2.2 | 0.002 | ||
| LVS (mm) (n=65) | 13.0±2.7 | 11.8±2.8 | 0.005 | ||
| LVEF (n=125) | 57.6±12.9 | 60.2±12.4 | 0.048 | ||
| RV dysfunction (n=94) | Mild or less | Moderate-severe | Mild or less | Moderate-severe | 0.647 |
| Frequency (n) | 91 (97%) | 3 (3%) | 86 (91%) | 8 (9%) | |
| MR grade (n=117) | Mild or less | Moderate-severe | Mild or less | Moderate-severe | 0.647 |
| Frequency (n) | 99 (85%) | 18 (15%) | 101 (86%) | 16 (14%) | |
AS, aortic stenosis; AI, aortic insufficiency; LVEDD, left ventricular end diastolic diameter; LVESD, left ventricular end systolic diameter; LVPW, left ventricular posterior wall; LVS, interventricular septum; LVEF, left ventricular ejection fraction; RV, right ventricular; MR, magnetic resonance.