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Figure 1 Both commissural splitting and commissural mitral regurgitation after successful PMV on parasternal short axis view (A and B) and apical two-chamber view (C). The arrows indicate split commissures (A) and origination of MR from both commissures (B and C). IVS, interventricular septum; LA, left atrium; LV, left ventricle; MV, mitral valve; MVO, mitral valve orifice; RV, right ventricle.