Characteristic | Without POHL n = 299 (%) | With POHL n = 188 (%) | P value |
---|---|---|---|
Demographics | Â | Â | Â |
Male | 216 (72.2) | 152 (80.9) | 0.031 |
Age (years) | 49.39 ± 11.63 | 50.14 ± 10.92 | 0.477 |
Body mass index (kg/m2) | 25.15 ± 3.80 | 25.60 ± 3.49 | 0.182 |
Smoking history | 124 (41.5) | 89 (47.3) | 0.204 |
Drinking history | 104 (34.8) | 70 (37.2) | 0.583 |
Underlying conditions | Â | Â | Â |
Hypertension | 199 (66.6) | 133 (70.7) | 0.334 |
Diabetes mellitus | 16 (5.4) | 5 (2.7) | 0.155 |
Chronic obstructive pulmonary disease | 3 (1.0) | 2 (1.1) | 0.949 |
Cerebrovascular disease | 51 (17.1) | 37 (19.7) | 0.464 |
Peripheral vascular disease | 40 (13.4) | 25 (13.3) | 0.980 |
Renal insufficiency | 91 (30.4) | 78 (41.5) | 0.013 |
Gastrointestinal tract disease | 22 (7.4) | 20 (10.6) | 0.209 |
Atrial fibrillation | 4 (1.3) | 0 (0) | 0.304 |
Surgery history | 71 (23.7) | 50 (26.6) | 0.479 |
Pulmonary artery hypertension | 10 (3.3) | 4 (2.1) | 0.581 |
Pericardial effusion | 88 (29.4) | 42 (22.3) | 0.085 |
Left ventricular ejection fraction (%) | 62 (60, 65) | 62 (60, 65) | 0.945 |
Laboratory values | Â | Â | Â |
White blood cell count (× 109/L) | 9.8 (7.5, 12.5) | 10.4 (7.8, 13.3) | 0.228 |
Red blood cell count (× 1012/L) | 4.2 (3.7, 4.5) | 4.3 (3.9, 4.6) | 0.030 |
Hemoglobin (g/l) | 125 (111, 138) | 131 (119, 141) | 0.005 |
Platelet count (× 109/L) | 162 (126, 210) | 154 (126, 186) | 0.120 |
Serum creatinine (μmol/L) | 78.0 (65.2, 109.0) | 83.0 (69.0, 115.5) | 0.164 |
Serum albumin (g/L) | 37.4 (34.4, 40.7) | 38.3 (35.7, 41.0) | 0.048 |
Serum globulin (g/L) | 25.7 (22.6, 28.5) | 25.3 (23.0, 28.0) | 0.625 |
Operative variables | Â | Â | Â |
Surgical types | Â | Â | 0.003 |
Isolated AADS | 209 (69.9) | 110 (58.5) | Â |
Combined valve surgery | 68 (22.7) | 42 (22.3) | Â |
Combined coronary artery bypass grafting | 9 (3.0) | 16 (8.5) | Â |
Combined valve and coronary surgery | 10 (3.3) | 16 (8.5) | Â |
Combined other types of cardiac surgery | 3 (1.0) | 4 (2.1) | Â |
Cardiopulmonary bypass time (minutes) | 199 (162, 239) | 233 (197, 274) | < 0.001 |
Aortic cross clamp time (minutes) | 116 (94, 142) | 130 (104, 155) | < 0.001 |
Transfusion of red blood cells (units) | 4 (3, 6) | 6 (4, 8) | < 0.001 |