Dame Elizabeth had heart surgery in 2009 to replace a leaky valve and has a long history of health problems.
伊丽莎白长期以来都患有心脏病，并曾在2009年进行过心脏手术、更换有漏洞的心脏瓣膜。
Heart valve replacement surgery typically involves replacing the faulty or leaky valve with a pig or cow tissue valve.
一般心脏瓣膜置换手术包括用猪或牛组织瓣膜置换损毁或有漏洞的瓣膜。
The echocardiogram is a painless test that's used to look for prolapse of the mitral valve flaps and for backflow (regurgitation) of blood through the leaky valve.
这项检查没有痛苦，主要用于检查二尖瓣的脱垂和血液通过渗漏二尖瓣的反流情况。
A second surgery to replace a leaky or faulty valve is considered riskier than the first.
二次手术置换损毁瓣膜被认为比一次更加危险。
She had undergone a surgical intervention to repair a leaky heart valve two years ago.
两年前，泰勒曾因心脏瓣膜渗漏接受过手术干预。
She had undergone a surgical intervention to repair a leaky heart valve two years ago.
两年前，泰勒曾因心脏瓣膜渗漏接受过手术干预。
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