|
Demographic data
| | | |
|
Age, years
|
75.3 ± 4.1
|
68.1 ± 9.7
|
<0.001
|
|
Female, number (percentage)
|
6 (30.0)
|
33 (41.0)
|
0.36
|
|
Body mass index
|
29.7 ± 4.3
|
27.4 ± 4.5
|
0.045
|
|
Comorbidities
| | | |
|
Preoperative serum creatinine, μmol/L
|
96.1 ± 31.6
|
89.4 ± 24.0
|
0.30
|
|
Preoperative estimated glomerular filtration rate < 60 mL/minute, number (percentage)
|
8 (40.0)
|
19 (23.8)
|
0.14
|
|
Left ventricular dysfunction (ejection fraction < 40%), number (percentage)
|
7 (35.0)
|
18 (22.5)
|
0.25
|
|
Arterial hypertension, number (percentage)
|
20 (100.0)
|
64 (80.0)
|
0.029
|
|
Hypercholesterolemia, number (percentage)
|
16 (80.0)
|
46 (57.5)
|
0.06
|
|
Atrial fibrillation, number (percentage)
|
10 (50.0)
|
16 (20.0)
|
0.006
|
|
Myocardial infarction (within 6 months preoperatively), number (percentage)
|
7 (35.0)
|
13 (16.3)
|
0.06
|
|
Chronic obstructive pulmonary disease, number (percentage)
|
6 (30.0)
|
8 (10.0)
|
0.021
|
|
Peripheral vascular disease, number (percentage)
|
4 (20.0)
|
2 (2.5)
|
0.013
|
|
Diabetes mellitus, number (percentage)a
|
8 (40.0)
|
20 (25.0)
|
0.18
|
|
Intervention
| | | |
|
Coronary artery bypass grafting surgery, number (percentage)
|
7 (35.0)
|
18 (22.5)
|
0.25
|
|
Valvular surgery, number (percentage)
|
7 (35.0)
|
45 (56.3)
|
0.09
|
|
Simultaneous coronary revascularisation and valve surgery, number (percentage)
|
6 (30.0)
|
11 (13.8)
|
0.08
|
|
Duration of cardiopulmonary bypass (minutes)
|
147.0 ± 31.6
|
136.0 ± 41.0
|
0.20
|
|
Fluid intake, 0–24 hours, mLb
|
5,500 ± 1,900
|
5,150 ± 1,250
|
0.44
|
|
Urine output, 0–24 hours, mL
|
3,350 ± 1,050
|
3,990 ± 1,500
|
0.034
|
|
Furosemide dose, 0–24 hours, mg
|
133.9 ± 168.7
|
30.9 ± 34.8
|
<0.001
|
|
Outcomes
| | | |
|
Need for renal replacement therapy or died during hospital stay, number (percentage)
|
4 (20.0)
|
1 (1.3)
|
0.005
|
|
Ventilation, days
|
2.4 ± 3.1
|
0.9 ± 0.8
|
0.010
|
|
Length of stay in the intensive care unit, days
|
6.3 ± 7.1
|
2.3 ± 2.1
|
0.012
|
|
Length of stay in hospital, days
|
16.2 ± 13.8
|
9.5 ± 4.7
|
0.026
|
