Table 1. Baseline characteristics.
| Variable | MIC (n=1,714) |
|---|---|
| Age, year | 65.0±12.8 |
| Male sex (male), No. (%) | 1,047/1,714 (61.1) |
| Weight, kg | 79.3±14.5 |
| Height, cm | 169.7±10.0 |
| BMI, kg/m2 | 27.8±6.5 |
| Logistic EuroSCORE, % | 5.3±5.1 |
| NYHA, No./total No. (%) | |
| Class I | 114/968 (11.8) |
| Class II | 406/968 (41.9) |
| Class III | 413/968 (42.7) |
| Class IV | 35/968 (3.6) |
| Clinical history, No./total No. (%) | |
| Diabetes mellitus | 332/1,639 (20.3) |
| Myocardial infarction (MI) | 56/1,615 (3.4) |
| Hyperlipidemia | 721/1,671 (43.1) |
| Hypertension | 1,239/1,682 (73.7) |
| Pulmonary hypertension | 121/1,295 (9.3) |
| Liver failure | 26/1,118 (2.3) |
| Cerebrovascular accident | 60/1,714 (3.5) |
| Peripheral vascular disease | 187/1,684 (11.1) |
| Cardiac surgery | 30/1,709 (1.8) |
| Active endocarditis | 40/1,714 (2.3) |
| COPD | 75/1,714 (4.4) |
| Dialysis | 23/1,684 (1.4) |
| Creatinine, mg/dL | 1.00±0.65 |
| Creatinine clearance, mL/min | 85.5±31.2 |
| LVEF, % | 60.3±12.1 |
| Prior PCI, No./total No. (%) | 86/1,682 (5.1) |
| Timing, No./total No. (%) | |
| Elective | 1,542/1,714 (89.96) |
| Urgent | 159/1,714 (9.28) |
| Emergency | 13/1,714 (0.76) |
| Type of valve inserted, No./total No. (%) | |
| Mechanical | 392/1,714 (22.9) |
| Biological | 1,322/1,714 (77.1) |
MIC, minimally invasive cardiac surgery; NYHA, New York Heart Association; BMI, body-mass-index; COPD, chronic obstructive lung disease; LVEF, left ventricular ejection fraction; PCI, percutaneous coronary intervention.