Table 2 Operative characteristics
| Â | overall | AS | AS+AR | p |
|---|---|---|---|---|
Prosthesis type n, (%) | Â | Â | Â | Â |
   Medtronic Hall | 96 (87) | 50 (90) | 46 (85) | 0,5189 |
   Carbomedicis | 4 (4) | 1 (2) | 3 (6) | 0,2998 |
   St.Jude | 10 (9) | 5 (9) | 5 (9) | 0,9519 |
Prosthesis size (mm) | 22,62 ± 1,90 | 22,13 ± 1,83 | 23,13 ± 1,85 | 0,9231 |
Prosthesis size/BSA (mm/m²) | 12,20 ± 1,21 | 12,19 ± 1,23 | 12,20 ± 1,19 | 0,9531 |
Bypass surgery n, (%) | 22 (20) | 12 (21) | 10 (19) | 0,7029 |
   Single bypass | 4 (4) | 2 (3) | 2 (4) | 0,3886 |
   Double bypass | 12 (11) | 5 (9) | 7 (13) | 0,4974 |
   Triple bypass | 6 (5) | 5 (9) | 1 (2) | 0,1023 |
Operative mortality n, (%) | 6 (5) | 1 (2) | 5 (9) | 0,0844 |