Experienced n=444 (77.2%) Less experienced n=131 (22.8%)
P
Pathology details Pathology details Pathology details Pathology details
Anterior leaflet prolapse 85 (19.1) 26 (19.8) 0.126
Posterior leaflet prolapse 219 (49.3) 76 (58)
Bi-leaflet prolapse 133 (29.9) 28 (21.4)
Annular calcification 67 (15) 13 (9.9) 0.152
Leaflet calcification 32 (7.2) 6 (4.6) 0.422
Annular dilatation 35 (7.9) 16 (21.2) 0.160
Broken/elongated chordae 214 (48.2) 66 (50.4) 0.691
Leaflet restriction 18 (4) 14 (10.7) <0.001
Approach Approach Approach Approach
Thoracotomy 103 (23.2) 33 (25.2) 0.641
Direct left atrial access 437 (98.4) 118 (90) <0.001
Decalcification 18 (4.5) 5 (3.8) >0.999
Operation outcome Operation outcome Operation outcome Operation outcome
Cross-clamp time (mean  SD, minutes) 93.4 31.3 150.5 20.5 <0.001
Repair attempted 378 (85.1) 100 (76.3) 0.024
Repair attempted for ALP/BLP 197 (90.37) 36 (70.37) 0.0005
Repair attempted for PLP 179 (79.91) 61 (79.22) .8710
Successful repair 358 (94.7) 87 (87) 0.001
Residual MR after repair 3 (0.8) 4 (4.4) 0.033
Bypass re-run 20 (4.5) 5 (3.8) >0.999
Repair after bypass rerun 11 (5.5) 1 () 0.322
Overall repair rate 361 (81.3) 91 (69.7) 0.005