|
Demographics
|
|
Age (years)
|
74 [67–79]
|
70 [63–77]
|
66 [58–73]
|
< 0.001*
|
|
Male sex (%)
|
65
|
64
|
69
|
0.635
|
|
Body weight (kg)
|
76 [68–86]
|
80 [71–90]
|
83 [72–93]
|
0.002*
|
|
Comorbidities (%)
|
|
Diabetes mellitus
|
18
|
21
|
16
|
0.367
|
|
Peripheral vessel disease
|
15
|
15
|
17
|
0.565
|
|
TIA/CVA
|
16
|
121
|
12
|
0.269
|
|
Neurological dysfunction
|
4
|
4
|
5
|
0.772
|
|
COPD
|
22
|
17
|
12
|
0.038*
|
|
Cardiac status (%)
|
|
Recent myocardial infarction (< 90 days)
|
12
|
12
|
9
|
0.602
|
|
Previous cardiac surgery
|
19
|
22
|
20
|
0.618
|
|
Unstable angina
|
4
|
5
|
1
|
0.036*
|
|
Preoperative LVEF (%) (TTE)
|
|
- Good (> 55%)
|
40
|
59
|
66
| |
|
- Moderate (30–49%)
|
33
|
26
|
24
|
< 0.001*
|
|
- Poor (< 30%)
|
27
|
15
|
10
| |
|
Preoperative status
|
|
Preoperative serum creatinine (μmol/l)
|
88 [76–107]
|
88 [75–102]
|
89 [77–100]
|
0.638
|
|
Preoperative pulmonary hypertension (%)
|
7
|
3
|
1
|
0.013*
|
|
Intraoperative characteristics
|
|
Aortic cross-clamp (min)
|
98 [71–129]
|
97 [68–140]
|
93 [64–133]
|
0.578
|
|
ECC (min)
|
139 [96–187]
|
137 [99–190]
|
126 [89–182]
|
0.363
|
|
Procedure (%)
|
|
CABG
|
13
|
12
|
11
|
0.285
|
|
Valve
|
49
|
45
|
54
|
|
CABG + valve
|
28
|
32
|
23
|
|
Other
|
10
|
10
|
12
|
|
Risk scores
|
|
APACHE IV
|
52 [43–62]
|
50 [40–59]
|
46 [36–54]
|
< 0.001*
|
|
EuroSCORE I
|
8 [6–10]
|
7 [5–9]
|
6 [4–8]
|
< 0.001*
|
