Severe mitral regurgitation was the main indication in the overall cohort (99%). There were no differences in the rate of concomitant atrial ablation between groups. Cardiopulmonary bypass time and cross clamp time were significantly lower in group 1 compared to group 2 and 3. ICU length of stay was also significantly longer in group 2 and 3. The overall rate of wound healing disorders was very low with no significant difference between groups. Stroke rate in the overall cohort was 0%. Rate of re-thoracotomy of group 1 showed no significant difference compared to group 2 and 3. Rates of mortality were very low in all groups and showed no significant differences.