[National registry of percutaneous mitral commissurotomy. 8-year's experience].
1996
: From April 1986 to June 1994 we performed percutaneous transvenous mitral commissurotomy in 689 patients with rheumatic mitral stenosis in a multicenter study. Mean age was 40 +/- 11 years, of then 84.9% female, 2.7% to had previous surgical treatment and in 1.4% the procedure was performed during pregnancy. Inoue balloon was used in 89.4%, double balloon 9.7% and monoballoon 0.9%. Mitral valve area (MVA) increased from 0.93 +/- 0.20 to 1.85 +/- 0.37 cm2 (p 1 cm2) and good predilatation NYHA class were predictors of optimal results. Severe MR were more frecuently in patients with atrial fibrillation and with high score (> 8). Our results were similar the international experience. We conclude that the technique of PTMC is a safe and effective technique.
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