Skip to main content

Table 1 Unadjusted, i.e. before matching, pre- and operative data

From: Emergency coronary artery bypass grafting using minimized versus standard extracorporeal circulation – a propensity score analysis

Variable CECC (n=175) MECC (n=146) p-value
Age [years] 68.4 ± 9.74 67.8 ± 8.74 0.55
Age group [n; %]    
<59 32 25 0.59
60 -69 64 54
70-79 56 54
>80 23 13
Male gender [n; %] 129; 73.7% 113; 77.3% 0.44
Logistic EuroSCORE [%, 95% CI] 16.0 (13.4 to 18.2) 12.8 (10.9 to 14.6) 0.07
Ejection fraction [%] 50 (40; 64) 56 (45; 70) 0.001*
Height [cm] 172 (165; 176) 172 (166; 176) 0.65
Weight [kg] 82 (73; 93) 80 (70; 90) 0.11
Atrial fibrillation, preoperative [n; %] 9; 5.1% 6; 4.1% 0.66
COPD, preoperative [n; %] 17; 9.7% 9; 6.1% 0.24
Inhalative β2-Mimetic use [n; %] 5; 2.9% 4; 2.7% 0.94
Myocardial infarction preoperative [n; %] 140; 80% 116; 79.4% 0.90
Troponin I preoperative [ng/mL)A 5.1 (1.0 to 21) 3.8 (0.4 to 0.7) 0.15
Insulin-dependent diabetes [n; %] 15; 8.6% 11; 7.6% 0.73
Non insulin-dpendent diabetes [n; %] 26; 14.8% 21; 14.3% 1.0
Diabetic nephropathy [n;%] 9, 5.1% 5; 3.4% 0.45
Serum creatinine, preoperative [mg ×dL-1] 1.0 (0.8; 1.3) 0.9 (0.8; 1.2) 0.05*
Estimated GFR < 60 mL × min-1 × 1.73 m-2 [n; %] 63; 36% 32; 22% 0.006
No of grafts [n] 2.95 ± 0.88 2.7 ± 0.80 0.006*
LIMA use [n; %] 126; 72% 121; 83% 0.02*
Bypass time [min] 96 (69; 119) 74 (54; 93) < 0.0001*
Aortic cross clamp time [min] 47 (34; 61) 37 (27; 50) 0.0002*
  1. A – Reference values (0.01 ng/ mL to 0.1 ng/mL).