Summary

Percutaneous mitral valvoplasty (PMV) is considered the procedure of choice for the treatment of selected patients with rheumatic mitral stenosis.
Refinements of technique, patient selection and operator experience have improved the outcome of patients undergoing PMV.

Objective – Assessment of immediate results of elective percutaneous mitral valvoplasties undergone in the Hospital de Base do Distrito Federal (HBDF) in 2003 through retrospective echocardiographic analysis of anatomic e hemodinamic parameters verified before and after the procedure and comparison of those results to available literature data.

Methods – This study retrospectively evaluated the echocardiographic resultsof elective PMV performed in twelve non-consecutive patients with rheumatic mitral stenosis.

Patients were predominantly female (83%) with ages from 22 to 49 years (mean of 34 ± 9). None of them had atrial fibrillation (AF). 75% (9 patients) had mild mitral regurgitation before the procedure and none had worse regurgitation levels. All had favorable Block score £ 8 (mean of 7 ±1).

Results – When compared pre and post procedure results PMV achieved significant increase in mitral valve area (of 0,95 ± 0,14 to 1,89 ± 0,52 cm²; p< 0,0000001) and significant reduction in mean left atrial dimension (of 4,7 ± 0,5 to 4,1 ± 0,c cm; p< 0,0005), in mean left atrial area (of 31,4 ± 4 to 26,2 ± 6 cm²; p < 0,0005), in mean mitral gradient pressure (of 12,9± 5 to 4,8 ±1,9 mmHg; p< 0,0005) and in pulmonary artery pressure (by 44,8 ± 8 to 39,2 ± 7 mmHg ; p< 0,3).
These results are in agreement with the other publications that include 9101 patients.

Conclusions – PMV yield excellent results in twelve patients evaluated. These results are comparable with the literature numbers. Studies including more patients are necessary to improve the statisticas analysis.