“老年退行性心脏瓣膜病”的概念、定义、翻译、参考文献-科学参考

单词	老年退行性心脏瓣膜病
释义	老年退行性心脏瓣膜病 Encyclopedia 医学循环系统疾病释 senile degenerated heart valvular disease, SDHVD老年退行性心脏瓣膜病随着年龄的增长，原本正常或轻度异常的心脏瓣膜发生退行性病变及纤维化，使瓣膜增厚、变硬、变形及钙盐沉积，导致瓣膜狭窄和（或）关闭不全的现象。又称老年钙化性心脏瓣膜病。
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科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。