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Table 1 Preoperative Characteristics

From: Evaluation of preoperative intra-aortic balloon pump in coronary patients with severe left ventricular dysfunction undergoing OPCAB surgery: early and mid-term outcomes

Variables Group A (n = 115)
N (%)
Group B (n = 106)
N (%)
P value
Female sex 42(36.5) 32 (30.2) 0.42
Age > 65 years 78 (67.8) 80 (75.5) 0.11
Symptom status(stable) 66 (57.4) 70 (66.0) 0.65
Diabetes 35 (30.4) 36 (34.0) 0.77
Hypertension 70 (60.9) 79 (74.5) 0.12
Hypercholesterolemia 85 (73.9) 76 (71.7) 0.88
Smoking 86 (74.8) 72(67.9) 0.61
Chronic Renal dysfunction 4 (3.5) 3 (2.8) 0.08
Chronic Gastritis 9 (7.8) 10 (9.4) 0.11
COPD 16 (13.9) 18 (17.0) 0.47
Peripheral vascular disease 7(6.1) 5 (4.7) 0.21
MI 73 (63.5) 79 (74.5) 0.06
Angina (CCS III/IV) 95 (82.6) 84 (79.2) 0.21
Dyspnea (NYHA III/IV) 55(47.8) 42 (39.6) 0.18
Redo CABG 2 (1.7) 1(0.9) 0.07
Prior CVA 5 (4.3) 3 (2.8) 0.11
BMI > 30 kg/m2 45 (39.1) 35 (33.0) 0.45
Aspirin<10 days 96 (83.5) 78(73.6) 0.17
Previous failed PTCA 8 (7.0) 8 (7.5) 0.64
Parsonnet score >10 73 (63.5) 73 (68.9) 0.37
Left main disease 20 (17.2) 21 (19.8) 0.58
Mean Diseased vessels 3.20 ± 0.36 3.42 ± 0.52 0.85
Mean EuroSCORE 12.58 ± 3.05 13.37 ± 3.13 0.26
Mean LVEF(%) 29.62 ± 5.32 30.04 ± 4.27 0.36
  1. CCS = Canadian Cardiovascular Society score; COPD = chronic obstructive pulmonary disease; MI = myocardial infarction; CVA = cerebrovascular accident; GI = gastrointestinal; BMI = body mass index; PTCA = percutaneous transluminal coronary angioplasty;