Table 4.
Data of surgical procedures performed on the mitral valve.
| Surgical Procedures | |||||
|---|---|---|---|---|---|
| MICS-MITRAL | Sternotomy | p-Value | |||
| n/N | % | n/N | % | ||
| Type of surgery | N = 160 | N = 320 | |||
| Repair, n | 103/160 | 64.4 | 228/320 | 71.3 | 0.31 |
| Replacement, n | 51/160 | 35.6 | 82/320 | 25.6 | |
| Failed repair, n | 6/160 | 3.75 | 10/320 | 3.1 | |
| Type of Annuloplasty Ring | N = 101 | N = 225 | |||
| Flexible, n | 0/101 | 9 | 16/225 | 7.1 | ≤0.001 ** |
| Rigid, n | 0/101 | 0.0 | 5/225 | 2.2 | |
| Semirigid, n | 101/101 | 100.0 | 204/225 | 90.7 | |
| MV repair site | N = 160 | N = 319 | |||
| AML, n | 1/160 | 0.6 | 17/319 | 5.3 | ≤0.001 ** |
| PML, n | 83/160 | 51.9 | 215/319 | 67.4 | |
| Bileaflet, n | 3/160 | 1.9 | 8/319 | 2.5 | |
| Prosthesis classification | N = 57 | N = 92 | |||
| Mechanical, n | 7/57 | 12.3 | 25/92 | 27.2 | 0.04 * |
| Biological, n | 50/57 | 87.7 | 67/92 | 72.8 | |
| Resection | N = 160 | N = 319 | |||
| No resection, n | 137/160 | 85.6 | 247/319 | 77.4 | 0.09 |
| AML, n | 0/160 | 0.0 | 3/319 | 0.9 | |
| PML, n | 23/160 | 14.4 | 65/319 | 20.4 | |
| Bileaflet, n | 0/160 | 0.0 | 4/319 | 1.3 | |
| Artificial chords | N = 160 | N = 319 | |||
| No artificial chords, n | 102/160 | 63.8 | 284/319 | 89 | ≤0.001 ** |
| AML, n | 1/160 | 0.6 | 13/319 | 4.1 | |
| PML, n | 57/160 | 35.6 | 21/319 | 6.6 | |
| Bileaflet, n | 0/160 | 0.0 | 1/319 | 0.3 | |
| Edge-to-edge repair | N = 160 | N = 319 | |||
| No edge-to-edge repair, n | 156/160 | 97.5 | 315/319 | 98.8 | 0.45 |
| Edge-to-edge repair, n | 4/160 | 2.5 | 4/319 | 1.3 | |
| Conversion to sternotomy | N = 160 | N = 320 | |||
| 0/160 | 0.0 | 0/320 | 0.0 | ≥0.99 | |
| Skin-to-Skin-Time (min), mean ± SD | 132.0 ± 31.0 | 131.0 ± 46.0 | 0.76 | ||
| Perfusion time, mean ± SD | 88.7 ± 26.6 | 68.7 ± 32.7 | ≤0.001 ** | ||
| X-clamp time, mean ± SD | 64.4 ± 22.3 | 49.7 ± 22.4 | ≤0.001 ** | ||
Note: Bold values indicate statistical significance: *, p ≤ 0.05; **, p ≤ 0.01. Abbreviations: MICS-MITRAL, minimally invasive mitral valve surgery; RAFR, replacement after failed repair; ARC, annuloplasty ring classification; ART, annuloplasty ring type; SJM, St. Jude Medical; MDT, Medtronic; AML, anterior mitral leaflet; PML, posterior mitral leaflet.