نتایج جستجو برای: heart valves
تعداد نتایج: 396404 فیلتر نتایج به سال:
Heart valve replacement is fast becoming a routine surgery worldwide and heart valve prostheses are today considered among the most widely used cardiovascular devices. Mechanical and bioprostheses have been the traditional choices to the replacement surgeries. However, such valves continue to exposed patients to risks, including thrombosis, infection and limited valve durability. In recent year...
QUESTION What are the major concerns during pregnancy for women with prosthetic heart valves? ANSWER There are 2 types of prosthetic heart valves, bioprosthetic and mechanical. Although successful pregnancies are possible for women with prosthetic heart valves, there are potential complications-some of which can be fatal-for both types of valves. Therefore, preconception counseling and assess...
BACKGROUND For nearly a century, the mechanical failure of calcified heart valves was attributed to a passive degenerative process. Recently, several case reports described bone formation in surgically excised heart valves and suggested an unexpected process of tissue repair. METHODS AND RESULTS We studied the prevalence and pathology of heterotopic ossification in 347 surgically excised hear...
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