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Björk–Shiley valve, as depicted in patent #US003824629. The Björk–Shiley valve is a mechanical artificial heart valve. The valve was co-invented by American engineer Donald Shiley and Swedish heart surgeon Viking Björk. Beginning in 1971, it has been used to replace aortic valves and mitral valves. It was the first successful tilting ...
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 .
Repair is a more recent alternative to replacement; in many instances replacement will be the only realistic option because of severe destruction of the valve. [ 6 ] While replacement of the aortic valve is a safe and reproducible procedure it may still be associated with the long-term occurrence of so-called valve-related complications.
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]
Mitral valve repair is mainly used to treat stenosis (narrowing) or regurgitation (leakage) of the mitral valve. [citation needed] A mitral balloon valvuloplasty enlarges the valve opening to allow greater oxygenated blood flow into the left ventricle, and since severe mitral regurgitation can be a major complication, degrees of stenosis, regurgitation, and valve anatomical features are taken ...
The Hancock Aortic Tissue Valve is commonly used in patients requiring aortic valve replacement due to conditions such as aortic stenosis or aortic regurgitation. [7] The choice between a mechanical or bioprosthetic valve depends on various factors, including the patient's age, lifestyle, and medical history.