Table 1. Baseline characteristics of the study population.
| Patient characteristics and preoperative variables (n=428) | Values |
|---|---|
| Age, years* | 68.3±10.8 |
| Male: men, n [%] | 256 [60] |
| Previous myocardial infarction, n [%] | 38 [9] |
| Stroke in history, n [%] | 21 [5] |
| Atrial fibrillation, n [%] | 102 [24] |
| Peripheral atherosclerosis, n [%] | 34 [8] |
| Diabetes mellitus, n [%] | 81 [19] |
| Hypertension, n [%] | 286 [67] |
| Current smoker, n [%] | 124 [29] |
| Hyperlipidaemia, n [%] | 163 [38] |
| Body mass index, kg/m2* | 27.8±4.9 |
| Chronic obstructive airways disease, n [%] | 30 [7] |
| Chronic kidney disease (GFR <60 mL/min/1.73 m2), n [%] | 94 [22] |
| LVEF, n [%] | |
| >50% | 299 [70] |
| 50–36%, n [%] | 90 [21] |
| ≤35% | 39 [9] |
| Pulmonary blood pressure, mmHg* | 38.8±10.6 |
| CCS (classes)* | 2±1 |
| NYHA classes*, n [%] | 2.4±0.5 |
| I | 3 [1] |
| II | 229 [54] |
| III | 189 [44] |
| IV | 7 [2] |
| GFR (mL/min/1.73 m2)* | 69±16 |
| Hs-TnT (ng/L) | 25±22 |
| Hs-CRP (mg/dL) | 0.39±0.3 |
| Hemoglobin (g/dL)* | 13.6±1.4 |
| Red cell distribution width (%)* | 13.9±1.2 |
| Red blood cell count (min/ìL) | 4.4±0.5 |
| EuroSCORE II* | 2.9±2.6 |
| STS* | 2.1±1.5 |
| Cardiopulmonary bypass time (min)* | 101±38 |
| Aortic cross-clamp time (min)* | 78±33 |
| Days at the ICU (n)* | 4±3 |
| Days in the hospital (n)* | 11±6 |
| Drainage after 24 h (mL)* | 760±350 |
| Myocardial infarction, n [%] | 13 [3] |
| Reoperation during the same hospital stay, n [%] | 39 [9] |
| Renal replacement therapy, n [%] | 22 [5] |
| Stroke, n [%] | 14 [3] |
| In-hospital mortality | 18 [4] |
Values are represented by the mean * and a measure of the variation of the internal standard deviation. AVR, aortic valve replacement; CCS, Canadian Cardiovascular Society; GFR, Glomerular filtration rate; Hs-TnT, high-sensitivity troponin T; LVEF, left ventricle ejection fraction; NT-proBNP, N-terminal of the prohormone brain natriuretic peptide; NYHA, New York Heart Association.