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。

Aortic valve stenosis, when the aortic valve does not open properly and blood is forced through a narrow opening.

主动脉瓣狭窄，当主动脉瓣不恰当打开时，血液勉强通过狭窄的开口。