Table 1 CABG patient baseline clinical characteristics.

Age (y)

65.21 ± 8.50(35–85)

Female (n, %)

349(21.60)

Weight (kg)

69.06 ± 10.40(37–125)

Height (cm)

166.84 ± 6.99(144–185)

BMI (kg/m²)

24.76 ± 3.08(15.60–39.06)

Morbid obesity (n, %)

82(5.07)

Body surface area (m²)

1.75 ± 0.16(1.26–2.55)

Diabetes (n, %)

518(32.05)

Hypertension (n, %)

1087(67.26)

Renal failure (n, %)

21(1.30)

Serum creatinine (μmol/l)

82.74 ± 41.94(29.20–937.00)

Ccr (ml/min)

81.40 ± 27.07(6.53–246.55)

Cerebrovascular accident (n, %)

40(2.48)

COPD (n, %)

44(2.72)

Peripheral vascular disease (n, %)

40(2.48)

Cardiovascular surgery (n, %)

79(4.89)

Atrial flutter and fibrillation (n, %)

42(2.60)

Accompanied by pulmonary hypertension (n, %)

157(9.72)

Myocardial infarction (n, %)

213(13.18)

Unstable angina pectoris (n, %)

850(52.60)

Number of diseased coronary vessels (n)

2.85 ± 0.46(1–3)

Three-vessel coronary disease (n, %)

1448(89.60)

NYHA IV (n, %)

34(2.10)

LVEF (%)

61.13 ± 7.44(20.90–75.00)

Severe preoperative status (n, %)

78(4.83)

Preoperative IABP (n, %)

12(0.74)

Status of surgery

   Elective (n, %)

1548(95.79)

   Urgent (n, %)

51(3.16)

   Salvage (n, %)

17(1.05)

Number of grafts (n)

3.53 ± 1.07(1–8)

Hospital mortality (n, %)

31(1.92)