Overall (n = 495) | Survival (n = 452) | Death (n = 43) | P value | |
---|---|---|---|---|
Gender, male | 385 (77.78%) | 357 (78.98%) | 28 (65.12%) | 0.037 |
Age, year | 47.5 ± 10.7 | 47.1 ± 10.6 | 51.465 ± 10.119 | 0.011 |
BMI, kg/m2 | 25.57 ± 3.951 | 25.64 ± 4.026 | 24.86 ± 3.000 | 0.300 |
Time from onset to admission, h | 3 [1, 10] | 3 [1, 10] | 2 [1, 7] | 0.369 |
Hypertension | 364 (73.54%) | 335 (74.12%) | 29 (67.44%) | 0.343 |
Diabetes | 10 (2.02%) | 10 (2.21%) | 0 (0%) | > 0.999 |
Peripheral vascular disease | 9 (1.82%) | 9 (1.99%) | 0 (0%) | > 0.999 |
COPD | 2 (0.40%) | 2 (0.44%) | 0 (0%) | > 0.999 |
Chronic kidney disease | 24 (4.85%) | 21 (4.65%) | 3 (6.98%) | 0.454* |
Preoperative CNS disease | 22 (4.44%) | 21 (4.65%) | 1 (2.33%) | 0.710* |
Hyperlipidemia | 80 (16.16%) | 76 (16.81%) | 4 (9.3%) | 0.201 |
The history of smoking | 210 (42.42%) | 192 (42.48%) | 18 (41.86%) | 0.938 |
The history of drinking | 25 (5.05%) | 23 (5.09%) | 2 (4.65%) | > 0.999 |
History of cardiovascular surgery | 35 (7.07%) | 30 (6.64%) | 5 (11.63%) | 0.214* |
Preoperative pain | 459 (92.73%) | 417 (92.26%) | 42 (97.67%) | 0.350* |
NYHA grading: | ||||
I | 37 (7.47%) | 33 (7.30%) | 4 (9.3%) | 0.437* |
II | 396 (80%) | 364 (80.52%) | 32 (74.42%) | |
III | 57 (11.52%) | 51 (11.28%) | 6 (13.95%) | |
IV | 5 (1.01%) | 4 (0.88%) | 1 (2.33%) | |
MBP, mmHg | 106 [96, 116.3] | 106.7 [96.67, 116.7] | 100.7 [93.33, 114] | 0.091 |
LVEF, % | 60 [58, 62] | 60 [58, 62] | 60 [59, 61] | 0.8531 |
Left ventricular diameter, mm | 51 [47, 56] | 51 [47, 57] | 49 [44, 55] | 0.082 |
Pericardial effusion | 69 (13.94%) | 62 (13.72%) | 7 (16.28%) | 0.643 |
Preoperative WBC count, 109/L | 10.90 [8.220, 13.61] | 10.83 [8.165, 13.58] | 11.39 [8.490, 13.69] | 0.448 |
Preoperative PLT count, 109/L | 169 [134, 220] | 171 [137, 223] | 147 [114, 176] | < 0.001 |
Preoperative Hb count, g/L | 132 [116, 144] | 132 [116, 144] | 128 [117, 136] | 0.165 |
Emergency operation | 285 (57.58%) | 258 (57.08%) | 27 (62.79%) | 0.469 |
Concurrent CABG | 48 (9.7%) | 42 (9.29%) | 6 (13.95%) | 0.289* |
Concurrent Aortic root surgery | 148 (29.9%) | 135 (29.87%) | 13 (30.23%) | 0.960 |
Concurrent mitral valve plastic or replacement | 8 (1.62%) | 8 (1.77%) | 0 (0.00%) | > 0.999 |
Blood loss, mL | 900[600, 1200] | 900 [600, 1200] | 1000 [600, 1200] | 0.311 |
Intraoperative red blood cell infusion, unit | 0 [0, 0] | 0 [0, 0] | 0 [0, 2] | 0.003 |
Intraoperative red blood cell infusion rate | 56 (11.31%) | 47 (10.40%) | 9 (20.93%) | 0.045 |
Frozen plasma infusion, mL | 400 [0, 600] | 400 [0, 600] | 400 [0, 800] | 0.093 |
Platelet infusion, unit | 2 [1, 2] | 2 [1, 2] | 2 [2] | 0.253 |
Lowest temperature in CPB | 18.3 [17.7, 20.2] | 18.3 [17.7, 20.25] | 18.3 [17.7, 19.6] | 0.719 |
Temperature when CPB is stopped | 36.9 [36.6, 37.1] | 36.9 [36.6, 37.1] | 36.9 [36.6, 37.1] | 0.514 |
Cardiopulmonary bypass time, min | 186 [158, 217] | 186 [155, 216] | 194 [171, 261] | 0.022 |
Clamping time, min | 22 [19, 26] | 22 [19, 25] | 22 [20, 27] | 0.273 |