Table 1: Patient and Disease Characteristics.

CCAB

OPCAB

p-value^*

Number of procedures by group

27

23

Patient age, years (%)

<60

40.7

30.4

0.45

60-69

37.0

39.1

0.88

70-79

22.2

30.4

0.51

Female (%)

7.4

17.4

0.28

Body mass index (%)

<31

66.7

69.6

0.83

31-36 (obese)

29.6

26.1

0.78

37+ (severely obese)

3.7

4.4

0.91

Estimated IQ

WRAT-3 Reading

-0.3±0.8

-0.5±0.9

0.46

Patient Comorbidities

Vascular Disease (%)

14.8

17.4

0.80

Diabetes (%)

25.9

43.5

0.19

Preoperative renal failure or creatinine >2 (%)

3.7

0.0

0.54

COPD (%)

7.4

4.4

0.65

Cardiac History, Function, and Anatomy

Ejection Fraction (%)

<40

7.7

0.0

0.58

40-49

7.7

4.8

50-59

23.1

23.8

>60

61.5

71.4

Number of diseased vessels

2

40.7

30.4

0.45

3

48.2

60.9

0.37

Coronary artery stenosis (%)

Left main >50%

14.8

17.4

0.80

LAD >70%

74.1

91.3

0.11

RCA >70%

77.8

69.6

0.51

CX >70%

66.7

78.3

0.36

PDA >70%

3.7

0.0

0.54

Procedural Data

Urgent (%)

63.0

56.5

0.64

Number of distal anastomoses

3.4±1.0

3.3±0.9

0.75

Number of distals/number diseased vessels

1.5±0.6

1.4±0.4

0.99

IMA Used (%)

100.0

95.7

0.99

Cross-overs (n)

0

2