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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.