Experienced surgeon N=83 (%) Less experienced surgeon N=40 (%)
Extensive calcification 39 (46.99) 7 (17.5)
Repair failure 15 (18) 9 (22.5)
Leaflet restriction 10 (12) 7 (17.5)
To minimize CX time 10 (12) 4 (10)
Difficult exposure 6 (7.2) 3 (7.5)
Redo sternotomy 1 (1.2) 0
Severe LV dilatation 1 (1.2) 0
Not reported 1 (1.2) 10 (25)