Table 1

AVR cohort characteristics stratified by procedure (AVR alone, AVR+CABG)

CharacteristicsValve aloneValve+otherp Value
Number of patients967848
Age at procedure74.8 (5.6)75.4 (5.7)0.02
Male457 (47.6%)565 (66.6%)<0.0001
Cumulative bypass time92.8 (27.3)125.6 (38)<0.0001
Cumulative cross clamp time67 (18.1)87.2 (23.1)<0.0001
EuroSCORE6.8 (1.9)7.3 (2.1)<0.0001
Logistic EuroSCORE0.079 (0.05)0.095 (0.075)<0.0001
High EuroSCORE (>5)720 (74.5%)666 (78.5%)<0.0001
Aortic valve gradient (mm Hg)55.1 (41.1)43.8 (37.0)0.53
Aortic valve (mechanical)181 (18.7%)149 (18.2%)0.11
Severely impaired left ventricular function49 (5.1%)58 (6.9%)0.68
Chronic kidney disease (SCr ≥200 µmol/L)19 (2.0%)19 (2.3%)0.45
Chronic lung disease142 (14.7%)114 (13.4%)<0.0001
Number of grafts0.0 (0.0%)1.8 (1%)=0.21
Aortic valve size (mm)
176 (0.6%)8 (0.9%)
19249 (25.8%)186 (21.9%)
21394 (40.87%)333 (40.1%)
23233 (24.1%)226 (26.6%)
2561 (6.3%)71 (8.4%)
2719 (2.0%)18 (2.1%)
292 (0.2%)5 (0.6%)
  • Mean (SD) or %; t test and χ2 tests for comparing means and percentages, respectively.

  • AVR, aortic valve replacement; CABG, coronary artery bypass graft; EuroSCORE, European System for Cardiac Operative Risk Evaluation.