The most common causes are aortic or pulmonic valve regurgitation.
最常见的原因是主动脉瓣或肺动脉瓣反流。
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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