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Feasibility, safety, and morphologic predictors of outcome of repeat percutaneous balloon mitral commissurotomy

      Early and mid-term results of repeat percutaneous balloon mitral commissurotomy (PBMC) were analyzed in 35 patients with symptomatic valvular restenosis: 12 patients (34%) after first successful PBMC and 23 patients (66%) after successful surgical closed mitral commissurotomy. Twenty-one patients had bilateral fused commissures, and 14 patients had unilateral or bilateral split commissures. Mitral valve area gain was significantly greater in the group with fused commissures compared with the group with split commissures (0.6 ± 0.2 vs 0.3 ± 0.2 cm2, respectively, p = 0.04).
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