Table 1.
Summary of clinical and surgical data.
| Group 1 (Bentall) N (%) | Group 2 (David I) N (%) | p | |
|---|---|---|---|
| Number (N) of patients | 102 | 79 | |
| Gender | |||
| - males | 89 (87) | 70 (89) | n.s. |
| - females | 13 (13) | 9 (11) | n.s. |
| Mean age (years) | 62 ± 11 | 64 ± 14 | n.s. |
| NYHA class | |||
| Mean | 2.4 ± 0.9 | 1.8 ± 0.8 | 0.001 |
| - I | 23 (23) | 35 (44) | |
| - II | 22 (21) | 26 (33) | |
| - III | 47 (46) | 15 (19) | |
| - IV | 10 (10) | 3 (4) | |
| Rhythm | |||
| - sinus | 92 (90) | 77 (97.5) | n.s. |
| - atrial fibrillation | 10 (10) | 2 (2.5) | n.s. |
| LV ejection fraction | 52 ± 10 | 55 ± 6 | 0.001 |
| Associated pathology | |||
| - Coronary artery disease | 7(7) | 7 (9) | n.s. |
| - Marfan syndrome | 3 (3) | 2 (2.5) | n.s. |
| - Bicuspid aortic valve | 15 (15) | 7 (9) | n.s. |
| Diabetes | 8 (8) | 10 (12) | n.s. |
| EuroSCORE (%) | 7 ± 2 | 10 ± 7 | n.s. |
| Associated procedures | |||
| - CABG | 5 (5) | 7 (9) | n.s. |
| - arch or hemiarch replacement | 2 (2) | 4 (5) | n.s. |
| - mitral valve surgery | 2 (2) | 2 (2.5) | n.s. |
| Mean CPB time (minutes) | 122 ± 51 | 154 ± 30 | 0.001 |
| Mean aortic cross clamp (minutes) | 98 ± 29 | 129 ± 7 | 0.001 |
NYHA = New York Heart Association; LV = Left ventricular; EuroSCORE = European System for Cardiac Operative Risk Evaluation; CABG = Coronary artery bypass grafting; CPB = Cardiopulmonary bypass; n.s. = Not significant.