Table 1.
Pre-operative variables
| Mitral prostheses (n) | 76 |
| Patients (n) | 76 |
| Age (y) Mean(SD) | 69.2 (11.6) |
| Gender | |
| Male | 35 |
| Female | 41 |
| Etiology | |
| Degenerative | 12 (15.8%) |
| SVD | 3 (4.0%) |
| Rheumatic | 27 (35.5%) |
| Endocarditis | 6 (7.9%) |
| DCM | 20 (26.3%) |
| Ischemic | 7 (9.2%) |
| Papillary muscle rupture | 1 (1.3%) |
| Preoperative NYHA | |
| I | 13 (17.1%) |
| II | 19 (25.0%) |
| III | 26 (34.2%) |
| IV | 18 (23.7%) |
| Preoperative LVEF (%) | |
| ≧50 | 43 (56.6%) |
| 36–50 | 13 (17.1%) |
| ≦35 | 20 (26.3%) |
SD, Standard Deviation; SVD, Structural Valve Degeneration of Bioprosthesis; DCM, Dilated Cardiomyopathy; ICM, ; NYHA, NewYork Heart Association Class; LVEF, Left Ventricular Ejection Fraction