Percutaneous Mitral Commissurotomy in Patients with Calcific Mitral Stenosis

S.Amellal, N.ElHaitem, N.Loudyi, D.Dourafei, N.Fellat, R.Fellat

Objective: the study evaluated the clinical and echocardiographic data, before and after percutaneous mitral commissurotomy (PMC) in patients with calcific mitral stenosis.               Materials and methods: this is a retrospective study of 215 patients divided into two groups: 148 patients with calcific mitral stenosis (Group 1), and 67 patients without mitral calcifications (Group 2). The study period is between January 2011 to July 2015.Results: the group 1 was significantly older than the group 2 (49,7±12,2 (group 1) versus 42,7±12,8(group 2) , p<0,001), and had significantly more men than women (female gender:75% in group 1 vs.88,1% in group 2, p<0,05). Before PMC: group 1 had significantly higher Wilkins (9,3±0,8(group 1) vs. 8,5±0,6 (group 2)   p <0,001) and smaller mitral valve area (0,91±0,20 (group1)  vs.0,99±0,20 ( group 2), p<0,05). After PMC: the final valve area was significantly smaller in patients with, than, without calcifications (2,10±0,26 vs.2,20±0,22  p<0,05). However , the rate of good immediate results, defined as valve area ≥1,5 cm² with no mitral regurgitation >2/4 ( 97,9%vs.100% , p> 0,05), and the rate of post PMC mitral regurgitation (MR≥3/4) (2% vs.0% , p>0,05), were no different between the 2 groups.Conclusion: PMC can be used for the treatment of patients with calcific mitral stenosis safety, with good immediate results.