| 21. | Another option for aortic valve replacement is transcatheter aortic valve replacement ( TAVR ).
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| 22. | Another option for aortic valve replacement is transcatheter aortic valve replacement ( TAVR ).
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| 23. | This principle applies to tricuspid valves as well as bicuspid or unicuspid aortic valves.
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| 24. | Beginning in 1971, it has been used to replace aortic valves and mitral valves.
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| 25. | Just as older people's arteries harden, something sometimes scars the aortic valve's tender leaflets.
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| 26. | In some cases, a human aortic valve can be implanted.
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| 27. | The aorta is divided above the aortic valve and root.
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| 28. | Heart tissue receives blood from two arteries which arise just above the aortic valve.
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| 29. | Fifteen of the 18 had leaky aortic valves, and three had leaky mitral valves.
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| 30. | The aortic valve, which has three cusps, lies between the left ventricle and the aorta.
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