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Artificial heart valve

Artificial heart valve

M561/0066

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Credit

CNRI / SCIENCE PHOTO LIBRARY CNRI / SCIENCE PHOTO LIBRARY

Caption

Replacement heart valve. Gross clinical specimen of a heart with an artificial heart valve (white, centre right). This is a Starr valve, and has replaced the mitral valve, a one-way valve that allows blood to flow only from the left atrium to the left ventricle. The left ventricle is the chamber that pumps blood around the body. A valve is replaced if it becomes incompetent (it fails to prevent back-flow) or narrowed (stenosis). Valve replacement is a major surgical operation in which the patient is placed on a heart-lung machine for several hours. After the operation the patient must take anticoagulant drugs for life to stop clots forming on the valve.

Release details

Model release not required. Property release not required.

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