Preoperative baseline and postoperative echocardiographic LV measurements in the two surgical groups
| Variables | Pre aortic valve surgery | Post aortic valve surgery | P values | |||
| AVR | MIAVR | AVR | MIAVR | Between the groups (preoperative)† | Between the groups (postoperative)† | |
| LVEDD (mm) | 44.8±5.1 | 46.3±5.3 | 43.7±4.9* | 47.1±5.6 | 0.67 | 0.03 |
| LVESD (mm) | 26.9±6.2 | 28.7±6.9 | 26.7±5.1 | 30.6±6.9 | 0.40 | 0.03 |
| LVEDV (mL) | 85.6±19.9 | 102±30 | 82±17.2 | 100.5±29.7 | 0.14 | 0.03 |
| LVESV (mL) | 34.9±10.4 | 42.3±13.3 | 36.1±10.4 | 45.5±14.9 | 0.11 | 0.04 |
| LVEF (%) | 60.2±5.7 | 57.8±6.3 | 56.5±5.4** | 54.6±6.5 | 0.33 | 0.37 |
| LVGLS (%) | −16.5±8.1 | −17.4±2.1 | −15.7±2.7 | −16.9±2.1 | 0.64 | 0.21 |
| LVMPI | 0.81±0.3 | 0.75±0.2 | 0.91±0.2 | 0.89±0.2** | 0.37 | 0.63 |
| Mitral E (m/s) | 0.81±0.3 | 0.80±0.3 | 0.84±0.2 | 0.89±0.3 | 0.72 | 0.71 |
| Mitral A (m/s) | 0.98±0.4 | 0.81±0.4 | 0.89±0.3* | 0.79±0.3 | 0.14 | 0.61 |
| Mitral E/A | 0.84±0.2 | 1.2±0.9 | 0.98±0.3 | 1.2±0.4 | 0.14 | 0.46 |
| Dec T (ms) | 228.8±61 | 201.1±58.4 | 200±50 | 203.7±49.7 | 0.30 | 0.59 |
| LA volume (mL) | 83.2±23.3 | 79.6±20.5 | 75.2±22.1 | 79.8±23.7 | 0.53 | 0.58 |
| HR (min¯¹) | 69.6±12.0 | 63.4±9.1 | 72.5±13.7* | 71.2±13.0* | 0.22 | 0.75 |
Paired t test versus baseline.
*P<0.05; **P<0.01; ***P<0.001.
LV, left ventrucular: A, late diastolic flow velocity; AVR, conventional aortic valve replacement surgery; Dec T, declaration time; E, early diastolic flow velocity; EDD, end-diastolic diameter; EDV, end-diastolic volume; EF, ejection fraction; ESD, end-systolic diameter; ESV, end-systolic volume; GLS, global longitudinal strain; HR, heart rate; LA, left atrium; MIAVR, minimally invasive aortic valve replacement surgery; Mitral E/A, ratio between early diastolic flow velocity and late diastolic flow velocity: MPI, myocardial performance index.