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. 2014 Jan 27;9:23. doi: 10.1186/1749-8090-9-23

Table 2.

Preoperative characteristics of patients

Variable Crystalloid cardioplegia [no = 50] Blood cardioplegia [no = 50] p value
Age*
61 ± 12
63 ± 9
0.651
Male
37
39
0.466
Smoking
34
29
0.012
COPD
12
14
0.834
Hypertension
25
21
0.543
Congestive heart failure (no)
2
3
0.335
Peripheral vascular disease
11
9
0.746
Cerebral vascular disease
6
7
1.00
Average body surface area (BSA m2)
1.91 ± 0.5
1.89 ± 2.2
0.855
Body mass index (kg/m2)*
33.4 ± 4.2
29.3 ± 6.8
0.455
Ejection fraction (%)*
45.6 ± 7.8
50.1 ± 3.6
0.023
Preoperative IABP
2
-
0.242
Number of diseased vessels* (range 1–4)
2.1 ± 0.4
1.9 ± 0.6
0.744
LMCA disease (>50%)
5
3
0.721
Previous MI
31
37
0.462
Previous PTCA or stent
8
11
0.631
Preoperative hematocrit value (%)
38.5 ± 3.7
40.4 ± 5.6
0.563
Preoperative hemoglobine value (gr/dL) 13.3 ± 2.3 13.9 ± 2.9 0.646

*mean ± SD.

Abbrevations: COPD chronic obstructive pulmonary disease, IABP IABP intra-aortic balloon pump, LMCA left main coronary artery, MI myocardial infarction, PTCA Percutaneous transluminal balloon angioplasty.