医院表示如果心脏主动脉瓣硬化之后不及时治疗，会导致心脏衰竭或心脏性猝死。
If left untreated, a hardened aortic valve can result in heart failure or sudden cardiac death, according to the hospital.
主动脉瓣狭窄的病变过程与动脉粥样硬化相类似，钙化和组织重建都是关键的病变机制。
As is a disease process akin to atherosclerosis in which calcification and tissue remodelling play a crucial role.
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