Table 1 Baseline demographics and EuroSCORE II variables among the CABG patients, overall and by age group
All patients n (%) | < 60 y n (%) | 60–69 y n (%) | 70–79 y n (%) | ≥ 80 y n (%) | |
|---|---|---|---|---|---|
No of patients | n = 14,118 | n = 2245 | n = 4867 | n = 5657 | n = 1349 |
Age at surgery, mean (SD) | 68.5 (8.9) | 53.6 (4.9) | 65.1 (2.8) | 74.1 (2.8) | 82.2 (2.0) |
Sex | |||||
Men | 11,547 (81.8) | 1933 (86.1) | 4101 (84.3) | 4495 (79.5) | 1018 (75.5) |
Women | 2571 (18.2) | 312 (13.9) | 766 (15.7) | 1162 (20.5) | 331 (24.5) |
Medical history | |||||
Previous heart surgery | 176 (1.2) | 27 (1.2) | 56 (1.2) | 86 (1.5) | 7 (0.5) |
BMI in kg/m2, mean (SD) | 27.6 (4.2) | 28.8 (4.5) | 28.0 (4.2) | 27.2 (4.0) | 26.4 (3.7) |
Preoperative dialysis | 196 (1.4) | 45 (2.0) | 69 (1.4) | 71 (1.3) | 11 (0.8) |
Previous PCI | 2583 (18.3) | 498 (22.2) | 936 (19.3) | 985 (17.4) | 164 (12.2) |
Recent myocardial infarction | 6711 (47.6) | 1078 (48.1) | 2183 (44.9) | 2719 (48.1) | 731 (54.2) |
Diabetes | 4136 (29.3) | 679 (30.3) | 1519 (31.2) | 1620 (28.6) | 318 (23.6) |
Hypertension | 2896 (77.1) | 381 (64.8) | 995 (77.7) | 1264 (79.8) | 256 (83.9) |
Atrial fibrillation | 689 (6.8) | 25 (1.5) | 162 (4.7) | 366 (8.8) | 136 (15.0) |
Missing | 449 (4.4) | 67 (4.1) | 163 (4.7) | 178 (4.3) | 41 (4.5) |
Previous stroke | 1079 (7.7) | 60 (2.7) | 300 (6.2) | 531 (9.4) | 188 (14.0) |
Chronic respiratory disease | 1165 (8.3) | 124 (5.5) | 386 (7.9) | 539 (9.5) | 116 (8.6) |
Extracardiac arteriopathy | 1103 (7.8) | 83 (3.7) | 314 (6.5) | 559 (9.9) | 147 (10.9) |
Serum-creatinine, mean (SD) | 91.6 (52.9) | 89.6 (72.3) | 89.6 (54.3) | 92.9 (46.1) | 96.7 (31.4) |
Poor mobility | 351 (2.5) | 22 (1.0) | 107 (2.2) | 186 (3.3) | 36 (2.7) |
Critical preoperative state | 299 (2.1) | 51 (2.3) | 76 (1.6) | 137 (2.4) | 35 (2.6) |
NYHA class | |||||
I | 3345 (23.7) | 579 (25.8) | 1247 (25.6) | 1244 (22.0) | 275 (20.4) |
II | 4795 (34.0) | 795 (35.5) | 1689 (34.7) | 1899 (33.6) | 412 (30.6) |
III | 4686 (33.2) | 678 (30.3) | 1527 (31.4) | 1975 (34.9) | 506 (37.6) |
IV | 872 (6.2) | 118 (5.3) | 265 (5.4) | 357 (6.3) | 132 (9.8) |
CCS class 4 angina | 1948 (13.9) | 291 (13.0) | 636 (13.1) | 772 (13.7) | 249 (18.6) |
Left ventricular function | |||||
Normal | 9625 (68.2) | 1574 (70.2) | 3413 (70.1) | 3814 (67.4) | 824 (61.2) |
31%–50% | 3723 (26.4) | 546 (24.4) | 1187 (24.4) | 1551 (27.4) | 439 (32.6) |
21%–30% | 629 (4.5) | 93 (4.1) | 219 (4.5) | 246 (4.3) | 71 (5.3) |
≤ 20% | 134 (0.9) | 29 (1.3) | 47 (1.0) | 45 (0.8) | 13 (1.0) |
Pulmonary hypertension | |||||
< 30 mmHg | 11,256 (93.0) | 1847 (95.5) | 3843 (93.1) | 4535 (92.5) | 1031 (90.4) |
30–55 mmHg | 742 (6.1) | 79 (4.1) | 251 (6.1) | 325 (6.6) | 87 (7.6) |
> 55 mmHg | 104 (0.9) | 8 (0.4) | 32 (0.8) | 42 (0.9) | 22 (1.9) |
Urgency of the procedure | |||||
Elective | 6789 (48.5) | 1043 (46.8) | 2450 (50.8) | 2744 (48.9) | 552 (41.4) |
Urgent | 6572 (47.0) | 1056 (47.4) | 2199 (45.6) | 2613 (46.6) | 704 (52.9) |
Emergency | 558 (4.0) | 113 (5.1) | 160 (3.3) | 222 (4.0) | 63 (4.7) |
Salvage | 74 (0.5) | 15 (0.7) | 14 (0.3) | 32 (0.6) | 13 (1.0) |
ECC | 13,935 (98.7) | 2224 (99.1) | 4819 (99.0) | 5570 (98.5) | 1322 (98.0) |
EuroSCORE II log | |||||
< 4% | 12,412 (87.9) | 2147 (95.6) | 4584 (94.2) | 4786 (84.6) | 895 (66.3) |
4–8% | 1145 (8.1) | 58 (2.6) | 178 (3.7) | 604 (10.7) | 305 (22.6) |
> 8% | 561 (4.0) | 40 (1.8) | 105 (2.2) | 267 (4.7) | 149 (11.0) |
Dead within 30 days | |||||
All patients | 205 (1.5) | 9 (0.4) | 38 (0.8) | 102 (1.8) | 56 (4.1) |
Men | 146 (1.3) | 5 (0.3) | 27 (0.7) | 71 (1.6) | 43 (4.2) |
Women | 59 (2.3) | 4 (1.3) | 11 (1.4) | 31 (2.6) | 13 (3.8) |