A comparison of off-pump and on-pump coronary bypass surgery in patients with low EuroSCORE

Table 1 Base-line characteristics of the study groups

Characteristics	OPCAB group (n = 395)	On-pump group (n = 83)	p
Age (years)	54.7 ± 7.27	54.02 ± 7	0.353
Male Sex	358 (90.6)	75 (90.4)	0.939
BMI (kg/m ² )	27.59 ± 3.24	27.06 ± 3.36	0.194
EuroSCORE (add)	1.03 ± 0.82	0.86 ± 0.80	0.090
EuroSCORE (log)	1.24 ± 0.30	1.17 ± 0.30	0.053
CCA Class 1	5 (1.3)	0 (0.0)	0.024*
Class 2	75 (19.0)	11 (13.3)	0.173
Class 3	223 (56.5)	52 (62.7)	0.291
Class 4	92 (23.3)	20 (24.1)	0.876
Recent MI (<90 days)	53 (13.4)	12 (14.5)	0.802
PCI	17 (4.3)	6 (7.2)	0.261
Current smoker	294 (74.4)	63 (75.9)	0.779
Family history	206 (52.2)	52 (62.7)	0.081
Diabetes mellitus	106 (26.8)	24 (28.9)	0.699
Dyslipidemia	222 (56.2)	49 (59.0)	0.636
CRF	1 (0.3)	0 (0.0)	0.646
Hypertension	209 (52.9)	47 (56.6)	0.537
CVD	1 (0.3)	2 (2.4)	0.079
COPD	3 (0.8)	4 (4.8)	0.020*
PVD	8 (2)	2 (2.4)	0.687
Carotid artery disease	4 (1)	1 (1.2)	1.000
LMCA	36 (9.1)	8 (9.6)	0.881
One Vessel disease	27 (6.8)	2 (2.4)	>0.05
Two Vessel disease	132 (33.4)	17 (20.5)	0.010*
Three Vessel disease	236 (59.7)	64 (77.1)	0.010*
Normal left ventricular function	303 (76.7)	70 (84.3)	0.127
Moderate left ventricular function	92 (23.3)	13 (15.7)	0.010*

*Statistically significant difference.
Values are presented as mean ± standard deviation or number (%), where appropriate. OPCAB, off-pump coronary artery bypass surgery; CPB, cardiopulmonary bypass; BMI, body mass index; EuroSCORE, European System for Cardiac Operative Risk Evaluation (add: additive, log: logarithmic); CCA, Canadian Class of Angina; MI, myocardial infarction; PCI, percutaneous coronary intervention; CRF, chronic renal failure; CVD, cerebrovascular disease; COPD, chronic obstructive pulmonary disease; PVD, peripheral vascular disease; LMCA, left main coronary artery; LVEF, left ventricular ejection fraction.

ISSN: 1749-8090