Past medical history of rheumatic heart disease with mitral valve stenosis.

以前有风湿性心脏病伴二尖瓣狭窄病史。

That's where the mitral valve closing is best heard.

这个位置就是听二尖瓣关闭的最佳位置。

Finally, Marfan syndrome is a risk factor for mitral valve prolapse, where the mitral valve pouches into the left atrium during systole.

最后，马方综合征也是二尖瓣脱垂的一个危险因素，即二尖瓣在收缩期时突向左心房。

And because it's basically the tricuspid and mitral valve closing, it's best heard in the tricuspid valve and mitral valve area.

因为它主要是因为二尖瓣和三尖瓣关闭的声音，所以它可以在二尖瓣和三尖瓣听诊区被清晰听到。

After entering the left atrium, the blood goes through the second atrioventricular valve called the mitral valve into the left ventricle.

进入左心房后，血液穿过第二个房室瓣膜，称为二尖瓣，进入左心室。

Then the atrium contracts, which increases the pressure, so the blood passes down through the mitral valve into the left ventricle.

然后心房收缩，增加压力，所以血液通过二尖瓣进入左心室。

The chambers on the left side are underdeveloped. In addition, the mitral valve, which connects these two chambers, is abnormally narrow.

左心室发育得不完全。而且二尖瓣连接着左右心室也狭窄得很严重。

In this case, since it's the mitral valve, we call this mitral regurgitation.

在这种情况下，由于是二尖瓣，我们称之为二尖瓣反流。

Other conditions that cause audible systolic murmurs include ventricular septal defect and mitral valve prolapse.

产生可闻及的收缩期杂音的其他情况包括室间隔缺损和二尖瓣脱垂。

Might I ask you--would you have the kindness? I have grave doubts as to my mitral valve, if you would be so very good.

我可以不可以请求您--您肯不肯给我听一听？劳驾吧，我心脏的僧帽瓣也许有毛病。