Surgical data and postoperative course
| Variable | Ventricular MR (n=119) | Atrial MR (n=97) | P value |
| General | |||
| No. of procedures | 2.3±0.6 | 2.3±0.7 | P=0.472 |
| Left atriotomy, n (%) | 19 (16.0) | 52 (53.6) | P<0.001 |
| Right atriotomy, n (%) | 105 (88.2) | 74 (76.3) | P=0.020 |
| Heart port procedure, n (%) | 6 (5.0) | 21 (21.7) | P<0.001 |
| OR time (min) | 407 (351–461) | 343 (310–377) | P<0.001 |
| Mitral valve annuloplasty | |||
| MVA ring size | 27.4±1.5 | 27.3±1.9 | P=0.868 |
| MVA ring type, n (%) | P=0.338 | ||
| Flexible ring | 39 (32.8) | 25 (25.8) | |
| Semirigid ring | 79 (66.4) | 72 (74.2) | |
| Rigid ring | 1 (0.84) | 0 (0.0) | |
| Concomitant procedures | |||
| TV procedure, n (%) | 24 (20.2) | 53 (54.7) | P<0.001 |
| TV procedure type, n (%) | P=1.000 | ||
| TV ring annuloplasty | 22 (18.5) | 48 (49.5) | |
| TV suture annuloplasty | 2 (1.7) | 5 (5.2) | |
| TV ring size | 29.3±0.4 | 28.4±0.4 | P=0.098 |
| Cox-Maze IV procedure, n (%) | 8 (6.7) | 29 (29.9) | P<0.001 |
| LAA closure, n (%) | 28 (23.5) | 40 (41.2) | p=0.005 |
| CABG, n (%) | 88 (74.0) | 24 (24.7) | P<0.001 |
| Aortic valve procedure, n (%) | 30 (25.2) | 23 (23.7) | P=0.799 |
| Early postoperative course, n (%) | |||
| Revision | 8 (6.7) | 0 (0.0) | P=0.009 |
| Postoperative AF* | 53 (44.5) | 69 (71.1) | P<0.001 |
| Postoperative IABP | 5 (4.2) | 0 (0.0) | P=0.066 |
| Postoperative ECC | 2 (1.7) | 0 (0.0) | P=0.503 |
| Postoperative CVVH | 10 (8.4) | 1 (1.0) | P=0.025 |
| ICU stay, days | 4 (2–7) | 2 (1–3) | P<0.001 |
| Hospital stay, days | 15 (10–24) | 12 (9–17) | P=0.001 |
| In-hospital mortality, n (%) | 6 (5.0) | 1 (1.0) | P=0.098 |
| Mortality ≤30 days, n (%) | 7 (5.9) | 1 (1.0) | P=0.077 |
Continuous data are presented as mean±SD or median (IQRs) and respectively compared with the independent t-test or Mann-Whitney U test according their distribution. Frequencies were compared with the χ2 test. In case of cell counts <5 Fisher’s exact test was used.
*Including subjects with permanent AF preoperative.
AF, atrial fibrillation; CABG, coronary artery bypass grafting; CVVH, continuous venovenous hemofiltration; ECC, extracorporeal cardiopulmonary support; IABP, intra-aortic balloon pump; ICU, intensive care unit; LAA, left atrial appendage; MVA, mitral valve annuloplasty; OR, operating room; TV, tricuspid valve.