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Table 1 Baseline and operative characteristics of the entire cohort

From: Early clinical outcomes of on-pump beating-heart versus off-pump technique for surgical revascularization in patients with severe left ventricular dysfunction: the experience of a single center

  Group ONBEAT
(n = 88)
Group OFF
(n = 128)
p
Preoperation
 Age (years) 66.0 ± 7.9 65.2 ± 8.2 0.509
 Older age (age >65 years) 54 (61.4%) 75 (58.6%) 0.778
 Gender (Female) 18 (20.5%) 27 (21.1%) 1.000
 Recent smoking 17 (19.3%) 21 (16.4%) 0.859
 COPD 11 (12.5%) 17 (13.3%) 1.000
 Hypertension 48 (54.5%) 73 (57.0%) 0.781
 Diabetes 33 (37.5%) 31 (24.2%) 0.048
 Hyperlipemia 13 (14.8%) 19 (14.8%) 1.000
 Chronic renal dysfunction 2 (2.3%) 5 (3.9%) 0.703
 Prior CVA 7 (8.0%) 17 (13.3%) 0.274
 History of PCI 16 (18.2%) 24 (18.8%) 1.000
 Recent MI 22 (25.0%) 28 (21.9%) 0.625
 Congestive heart failure 25 (28.4%) 38 (29.7%) 0.879
 Extent of CAD    
  2 vessel 4 (4.5%) 12 (9.4%) 0.290
  3 vessel 84 (95.5%) 116 (90.6%)
 LM 26 (29.5%) 33 (25.8%) 0.641
 LVEF (%) 31.0 ± 2.8 31.0 ± 2.9 0.930
 LVEDD (mm) 66.8 ± 6.0 64.7 ± 5.9 0.013
 Enlarged left ventricles (LVEDD > 65 mm) 50 (56.8%) 51 (39.8%) 0.018
 Prophylactic IABP support 0 18 (14.1%) <0.001
 Euro-SCORE >6.0 44 (50.0%) 61 (47.7%) 0.782
Intra-operation
 Number of grafts 3.7 ± 0.8 2.8 ± 0.6 <0.001
 CPB time (min) 83.7 ± 7.7 0 <0.001
 Urgent switch to on-pump 0 5 (3.9%) 0.081
  1. Group ONBEAT patients received on-pump beating-heart coronary artery bypass grafting, Group OFF patients underwent off-pump coronary artery bypass grafting, COPD chronic obstructive pulmonary disease, CVA cerebro-vascular accident, PCI percutanous coronary intervention, MI myocardial infarction, CAD coronary artery disease, LM left main trunk disease, LVEF left ventricular ejection fraction, LVEDD left ventricular end-diastolic diameter, IABP intra-aortic balloon pump, Euro-SCORE European system for cardiac operative risk evaluation, CPB cardiopulmonary bypass