1、There are several types of heart valve that regulate the flow of blood through the heart.
在心臟中有幾種類型的心瓣膜用以調節(jié)血液流動。

2、Objective To investigate the use of warfarin sodium after mechanical heart valve replacement.
目的研究心臟機械瓣膜置換術后華法林鈉的應用。

3、Objective: to sum up experience of heart valve replacement after closed mitral commissurotomy.
目的：介紹二尖瓣閉式擴張術后的瓣膜替換術經驗。

4、Clinical analysis about 621 cases of rheumatic heart valve disease was ex-pounded in the paper.
本資料對621例風濕性心臟瓣膜病進行了臨床分析，結果顯示該病仍為常見心血管疾病。

5、Objective To review the experience of prosthetic heart valve replacement.
目的總結心臟瓣膜病的人工瓣膜置換手術治療經驗。

6、Heart valve surgery, who has the case of this respect?
心臟瓣膜手術，誰有這方面的案例嗎？

7、Changes of Nailfold Microcirculation After Operated Heart Valve Replacement
心瓣膜置換術后的甲襞微循環(huán)變化