Table 1 The baseline demographics and clinical variables in rheumatic mitral valve repair and replacement
From: Short and mid-term effects of modified release technique in rheumatic mitral valve repair
Clinical Variables | MVP(n = 128) | MVR(n = 128) | P-value |
|---|---|---|---|
Age(y) | 52.7 ± 10.8 | 52.9 ± 10.4 | 0.89 |
Gender(Male/Female) (n) | 51/77 | 51/77 | 1.00 |
BMI (kg/m2) | 23.7 ± 0.3 | 24.1 ± 0.3 | 0.27 |
BSA (m2) | 1.66 ± 0.01 | 1.69 ± 0.01 | 0.32 |
NYHA classification (I/II/III/IV)(n) | 4/78/42/4 | 6/62/52/8 | 0.201 |
Preoperative | |||
Mitral valve area(cm2) | 1.2 ± 0.2 | 1.2 ± 0.3 | 0.97 |
Left atrial appendage thrombi(n) | 14 | 20 | 0.269 |
LAD (mm) | 50.5 ± 0.8 | 51.3 ± 0.7 | 0.44 |
LVD(mm) | 52.4 ± 0.7 | 53.0 ± 0.7 | 0.50 |
Pulmonary Pressure | 35.6 ± 0.7 | 35.5 ± 0.6 | 0.89 |
Operative and perioperative variables | |||
Concomitant procedure | |||
RFCA(n) | 46 | 89 | < 0.01 |
Aortic Valve surgery(n) | 17 | 27 | 0.10 |
TVP(n) | 89 | 112 | < 0.01 |
right infra-axillary vertical thoracotomy(n) | 27 | 11 | < 0.01 |
CPB time(min) | 105 ± 15 | 125 ± 28 | < 0.01 |
X-clamp time(min) | 70 ± 16 | 85 ± 29 | < 0.01 |
Mechanical Ventilation(h) | 7.2 ± 2.7 | 9.3 ± 3.7 | < 0.01 |
Post-operative discharge(d) | 7.6 ± 2.1 | 8.9 ± 2.6 | 0.03 |
End diastolic peak flow velocity(m/s) | 1.2 ± 0.3 | 1.6 ± 0.4 | < 0.01 |
Transvalvular pressure gradients (mmHg) | 2.7 ± 1.1 | 3.8 ± 1.2 | 0.01 |