Objective : To value the virtues of mitral valve replacement with preservation of subvalvular apparatus.

目的: 评价保留瓣下结构的二尖瓣替换术的临床效果.

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In contrast , leaflets thickness, subvalvular apparaus and annulus were scored lower using 3 DV ( P 0.01 ).

它对瓣叶厚度 、 瓣环和瓣下结构的评分低于TEE和APE ( P0.01 ).

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