We performed “Papillary muscle heads focalization” for three patients with severe functional mitral regurgitation with severe leaflet tethering (coaptation distance ≥1 cm and/or posterior leaflet angle ≥45 degrees). All separated papillary muscle heads were sutured together and both the anterolateral and posteromedial papillary muscles were reconstructed as single head papillary muscles. The stitches are positioned to adjust the levels of mitral leaflet tips, concerning the length of the marginal chordae connected to each head. A downsized annuloplasty is performed concomitantly. At discharge, no patient showed moderate/severe mitral regurgitation. Their coaptation lengths were 7.1, 8.5, and 8.3 mm.

我们对三名患有严重功能性二尖瓣关闭不全并伴有严重瓣叶束缚（接合距离≥1 cm 和/或后瓣角≥45 度）的患者进行了“乳头肌头聚焦”。将所有分离的乳头肌头缝合在一起，并将前外侧和后内侧乳头肌重建为单头乳头肌。缝线的位置可以调整二尖瓣小叶尖端的水平，这与连接到每个头部的边缘腱索的长度有关。同时进行缩小的瓣环成形术。出院时，没有患者出现中度/重度二尖瓣关闭不全。它们的接合长度分别为 7.1、8.5 和 8.3 毫米。