Conclusion the mitral valve replacement of reserving mitral valve structure is superior to the mitral valve replacement of excising mitral valve structure.
结论保留二尖瓣装置的二尖瓣替换术优于切除二尖瓣装置的二尖瓣替换术。
Results The aortic valve calcification was the first position in aortic regurgitation(56.9%). Mitral structure normalcy was the first position in mitral regurgitation(63.0%).
结果主动脉瓣返流中主动脉瓣钙化占第一位（56.9%），二尖瓣返流中二尖瓣结构正常者占第一位（63.0%）。
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