Table 3. Hemodynamic data.
| Hemodynamic data | SMVR | TM-VIV | |||||
|---|---|---|---|---|---|---|---|
| Preoperative | Postoperative | P | Preoperative | Postoperative | P | ||
| n | 52 | 52 | 25 | 25 | |||
| PASP (mmHg) | 56.33±18.11 | 35.27±8.38 | <0.01* | 64.7±24.3 | 40.4±12.1 | <0.01* | |
| EF (%) | 64.22±7.01 | 60.55±7.29 | <0.01* | 65.2±4.8 | 63.20±6.19 | 0.21 | |
| LAD (mm) | 52.9±10.99 | 43.96±10.72 | <0.01* | 39.24±18.1 | 46.48±12.78 | 0.11 | |
| LVDd (mm) | 49.61±6.86 | 45.80±5.59 | <0.01* | 48.1±5.92 | 45.76±5.90 | 0.16 | |
| LVDs (mm) | 30.33±5.24 | 30.67±6.20 | 0.77 | 29.36±4.57 | 29.64±6.28 | 0.86 | |
| E’(m/s) | 2.34±0.40 | 1.68±0.28 | <0.01* | 2.44±0.42 | 1.74±0.26 | <0.01* | |
| MR grade (%) | <0.01* | <0.01* | |||||
| 0 | 0 | 50 (98.0) | 0 | 24 (96.0) | |||
| 2+ | 0 | 1 (2.0) | 1 (4.0) | 1 (4.0) | |||
| 3+ | 18 (35.3) | 0 | 2 (8.0) | 0 | |||
| 4+ | 33 (64.7) | 0 | 22 (88.0) | 0 | |||
| TR grade (%) | <0.01* | <0.01* | |||||
| 0 | 0 | 7 (13.7) | 1 (4.0) | 0 | |||
| 1+ | 0 | 3 (5.9) | 0 | 0 | |||
| 2+ | 11 (21.6) | 31 (60.8) | 5 (20.0) | 8 (32.0) | |||
| 3+ | 23 (45.1) | 10 (19.6) | 6 (24.0) | 15 (60.0) | |||
| 4+ | 17 (33.3) | 0 | 13 (52.0) | 2 (8.0) | |||
*, P<0.05. E’, mitral valve E-wave peak velocity; EF, ejection fraction; LAD, left atrial dimension; LVDd, left ventricular end-diastolic dimension; LVD, left ventricular end-systolic dimension; MR, mitral regurgitation; PASP, pulmonary artery systolic pressure; TR, tricuspid regurgitation; SMVR, surgical mitral valve replacement; TM-VIV, transcatheter mitral valve-in-valve implantation.