Table 1:
Baseline, operative and postoperative characteristics of patients with CABG
| <65 years (n = 1073) | 65–79 years (n = 1380) | ≥80 years (n = 153) | P-value | |
|---|---|---|---|---|
| Baseline characteristics | ||||
| Sex (female) | 136 (13) | 283 (21) | 56 (37) | <0.001 |
| BMIa (kg/m2) | 0.035 | |||
| <25 | 158 (23) | 252 (27) | 33 (34) | |
| 25–30 | 353 (51) | 454 (49) | 48 (50) | |
| >30 | 180 (26) | 214 (23) | 15 (16) | |
| Log EuroSCOREb I (%) | <0.001 | |||
| <10 | 1065 (99) | 1299 (94) | 121 (79) | |
| 10–20 | 4 (0.4) | 68 (4.9) | 25 (16) | |
| >20 | 0 (0.0) | 13 (0.9) | 7 (4.6) | |
| Diabetes mellitus | 202 (19) | 340 (25) | 35 (23) | 0.003 |
| Pulmonary disease | 70 (6.5) | 138 (10) | 12 (7.8) | 0.009 |
| Arterial vascular disease | 74 (6.9) | 183 (13) | 17 (11) | <0.001 |
| Renal disease (ml/min/1.73 m2) | <0.001 | |||
| eGFR ≥60 | 985 (92) | 1081 (78) | 84 (55) | |
| eGFR 30–59 | 84 (7.8) | 283 (21) | 67 (44) | |
| eGFR <30 | 4 (0.4) | 16 (1.2) | 2 (1.3) | |
| LVEFc (%) | 0.010 | |||
| >50 | 871 (81) | 1058 (77) | 110 (72) | |
| 30–50 | 173 (16) | 263 (19) | 39 (26) | |
| <30 | 29 (2.7) | 55 (4.0) | 4 (2.6) | |
| Previous cardiac surgery | 16 (1.5) | 28 (2.0) | 2 (1.3) | 0.55 |
| Operative characteristics | ||||
| Use of 1 arterial graft | 438 (41) | 861 (62) | 109 (71) | <0.001 |
| Use of 2 or more arterial grafts | 594 (55) | 469 (34) | 41 (27) | |
| Use of ECCa | 653 (94) | 860 (93) | 93 (97) | 0.24 |
| Postoperative characteristics | ||||
| Deep sternal wound infection | 5 (0.5) | 7 (0.5) | 2 (1.3) | 0.33 |
| Stroke | 0 (0.0) | 7 (0.5) | 0 (0.0) | 0.040 |
| Renal failure | 2 (0.2) | 2 (0.1) | 0 (0.0) | 1.00 |
| Surgical re-exploration | 24 (2.2) | 45 (3.3) | 3 (2.0) | 0.25 |
| Myocardial infarctiond | 26 (2.5) | 22 (1.6) | 3 (2.0) | 0.34 |
| Coronary reinterventione | 31 (2.9) | 45 (3.3) | 2 (1.4) | 0.41 |
Values are presented as n (%).
a
BMI is unknown for 899 patients and the use of ECC is unknown for 884 patients; data are available from two of the participating hospitals.
b
Log EuroSCORE I, data missing for 4 patients.
c
LVEF, data missing for 4 patients.
d
Myocardial infarction, data missing for 34 patients.
e
Coronary reintervention, data missing for 29 patients.
BMI: body mass index; CABG: coronary artery bypass grafting; ECC: extracorporeal circulation; eGFR: estimated glomerular filtration rate; LVEF: left ventricular ejection fraction.