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Table 1 Preoperative patient characteristics

From: Comparison of off-pump and on-pump coronary endarterectomy for patients with diffusely diseased coronary arteries: early and midterm outcome

Variable

Group on-pump (n = 120)

Group off-pump (n = 92)

Pvalue

Clinical demographics

   

 Age (y)

65 ± 8

63 ± 9

NS

 Female sex

20 (16.6%)

12 (13.0%)

NS

Coronary risk factors

   

 Hypertension

75 (62.5%)

59 (64.1%)

NS

 Diabetes

100 (83.3%)

76 (82.6%)

NS

 Hyperlipidemia

57 (47.5%)

50 (54.3%)

<0.05

 Smoking

55 (45.8%)

41 (44.6%)

NS

 Peripheral vascular disease

22 (18.3%)

17 (18.5%)

NS

 Previous renal impairment

6 (5.0%)

4 (4.3%)

NS

 Cerebrovascular accident

2 (1.7%)

8 (8.7%)

<0.001

 COPD

5 (4.2%)

22 (23.9%)

<0.001

 Calcified ascending aorta

2 (1.7%)

45 (48.9%)

<0.001

Cardiac profile

   

 Previous myocardial infarction

77 (64.2%)

59 (64.1%)

NS

 Unstable angina

87 (72.5%)

68 (73.9%)

NS

 previous PTCA

19 (15.8%)

15 (16.3%)

NS

 Mean ejection fraction

0.50 ± 0.12

0.49 ± 0.14

NS

 Poor ejection fraction (<0.35)

13 (10.8%)

9 (9.8%)

NS

 Left main disease

23 (19.2%)

17 (18.5%)

NS

 RCA Critical stenosis >90%

68 (56.7%)

89 (96.7%)

<0.001

 Number of diseased vessels

3.8 ± 0.8

3.9 ± 0.9

NS

  1. NS = not significant. PTCA = percutaneous transluminal coronary angioplasty.