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人工生物瓣膜

图示离体猪人工生物瓣膜。左图显示心房面,右图显示心室面。可见三个瓣叶围绕形成环。人工生物瓣膜的优点是不需要连续抗凝治疗。此种生物瓣膜临床应用时病人平均寿命受限,一般为5-10年(也有可能更短),是由于瓣膜的磨损和钙化所致。

This is an excised porcine bioprosthesis; the undersurface is at the left and the outflow side is at the right. Note there are three cusps sewn into a synthetic ring. The main advantage of a bioprosthesis is the lack of need for continued anticoagulation. The drawback of this type of prosthetic heart valve is the limited lifespan, on average from 5 to 10 years (but sometimes shorter) because of wear and calcification.


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