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Valve replacement surgery is the replacement of one or more of the heart valves with either an artificial heart valve or a bioprosthesis (homograft from human tissue or xenograft e.g. from pig). It is an alternative to valve repair .
Aortic valve replacement is a cardiac surgery procedure whereby a failing aortic valve is replaced with an artificial heart valve. The aortic valve may need to be replaced because of aortic regurgitation (back flow), or if the valve is narrowed by stenosis .
Diagram of the human heart. Several adaptations of the Ross procedure have evolved, but the principle is essentially the same; to replace a diseased aortic valve with the person's own pulmonary valve (autograft), and replace the person's own pulmonary valve with a pulmonary valve from a cadaver (homograft) or a stentless xenograft.
The stents that doctors put in last year had begun to fail and time was running out for the couple, family members told Fox 8. ... a new heart valve replacement surgery became available and ...
When PAVR surgery is performed an important and difficult aspect that affects the patient is the orientation, uniformity and depth at which the valve is inserted. When the valve is not inserted correctly, when there is incomplete sealing between the native heart valve and the stented valve, paravalvular leak (PVL) can occur.
The repairing process of the artificial heart valve regurgitation and stenosis usually requires an open-heart surgery, and a repair or partial replacement of regurgitant valves is usually preferred. [24] Researchers are investigating catheter-based surgery that allows repair of an artificial heart valve without large incisions. [33]
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