Research Article

Coronary Artery Bypass Grafting in Patients with Chronic Kidney Disease: Chronic Kidney Disease Has an Independent Adverse Effect on the Long-Term Outcome of Coronary Artery Bypass Grafting

Table 2

Intraoperative patient characteristics and early results.

Chronic kidney disease
(mL/min/m2)
G1
≥90
G2
60–89
G3
30–59
G4
15–29
G5
<15
value

Number of patients1281696576101282
Off-pump CABG119 (93.0%)1672 (98.6%)564 (97.0%)98 (97.0%)275 (97.5%)0.007
No. distal anastomoses<0.001
LITA125 (97.6%)1661 (97.9%)565 (98.1%)98 (97.0%)274 (97.2%)0.894
RITA86 (67.2%)971 (57.3%)347 (60.3%)58 (57.4%)157 (55.7%)0.150
Bilateral ITA84 (66.1%)955 (56.9%)339 (59.3%)56 (56.0%)152 (54.5%)0.204
Gastroepiploic artery51 (39.8%)603 (35.6%)217 (37.7%)40 (39.6%)62 (22.0%)<0.001
Radial artery38 (29.7%)369 (21.8%)93 (16.2%)5 (5.0%)1 (0.4%)<0.001
Saphenous vein30 (23.4%)742 (43.8%)296 (51.4%)54 (53.5%)148 (52.5%)<0.001
Operating time(min)<0.001
Postoperative IABP6 (4.7%)70 (4.1%)23 (4.0%)5 (5.0%)15 (5.3%)0.901
Reexploration0 (0%)11 (0.7%)4 (0.7%)0 (0%)3 (1.1%)0.458
Respiratory complications11 (8.6%)124 (7.3%)58 (10.1%)12 (11.9%)36 (12.8%)0.018
Postoperative acute renal injury0 (0%)27 (2.0%)33 (6.9%)29 (31.2%)279 (98.9%)<0.001
Cerebrovascular complications1 (0.8%)12 (0.7%)15 (2.6%)1 (1.0%)5 (1.8%)0.016
Any infection3 (2.3%)22(1.3%)13(2.3%)3(3.0%)16(5.7%)0.001
Deep sternal wound infection2 (1.6%)6 (0.4%)2 (0.4%)1 (1.0%)2 (0.7%)0.477
New postoperative atrial fibrillation12 (9.4%)423 (24.9%)186 (32.3%)29 (28.7%)78 (27.7%)<0.001
Blood transfusion11 (8.6%)298 (17.6%)213 (37.0%)51 (50.5%)170 (60.3%)<0.001
Hospital mortality1 (0.8%)9 (0.5%)6 (1.0%)1 (1.0%)13 (4.6%)<0.001
Hospital stay (days)<0.001

CABG: coronary artery bypass grafting; LITA: left internal thoracic artery; RITA: right internal thoracic artery; bilateral ITA: bilateral internal thoracic artery; IABP: intra-aortic balloon pumping; BMI: body mass index.