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Percutaneous mitral balloon valvotomy (MBV) was introduced in 1984 by Inoue who developed the procedure as a logical extension of surgical closed commissurotomy. Since then, MBV has emerged as the treatment of choice for severe pliable rheumatic mitral stenosis (MS). With increasing experience and better selection of patient, the immediate results of the procedure have improved and the rate of complications declined. When the reported complications of MBV are viewed in aggregate, complications occur at approximately the following rates: mortality (0–0.5%), cerebral accident (1–2%), mitral regurgitation (MR) requiring surgery (0.9–2%). These complication rates compare favorably to those reported after surgical commissurotomy. Several randomized trials reported similar hemodynamic results with MBV and surgical commissurotomy. Restenosis after MBV ranges from 4% to 70% depending on the patient selection, valve morphology, and duration of follow-up. Restenosis was encountered in 31% of the author’s series at mean follow-up of 9±5.2years (range 1.5–19years) and the 10, 15, and 19years restenosis-free survival rates were (78±2%) (52±3%) and (26±4%), respectively, and were significantly higher for patients with favorable mitral morphology (MES⩽8) at 88±2%, 67±4% and 40±6%, respectively (P<0.0001). The 10, 15, and 19years event-free survival rates were 88±2%, 60±4% and 28±7%, respectively, and were significantly higher for patients with favorable mitral morphology 92±2%, 70±4% and 42±7%, respectively (P<0.0001). The effect of MBV on severe pulmonary hypertension, concomitant severe tricuspid regurgitation, left ventricular function, left atrial size, and atrial fibrillation is addressed in this review

the egyptian heart journal /the egyptian heart journal

Mitral balloon valvotomy, long-term results, its impact on severe pulmonary hypertension, severe tricuspid regurgitation, atrial fibrillation, left atrial size, left ventricular function