Prosthetic Heart Valves

Martha A. Grogan and Fletcher A. Miller

in Mayo Clinic Cardiology

Fourth edition

Published on behalf of © Mayo Foundation for Medical Education and Research

Published in print November 2012 | ISBN: 9780199915712
Published online May 2013 | e-ISBN: 9780199322824 | DOI:

Series: Mayo Clinic Scientific Press

Prosthetic Heart Valves

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Prosthetic valves can only approximate normal human valve hemodynamics, and they carry the risk of unique complications, such as structural failure, thrombosis, hemolysis, and infections. Valve prostheses are classified as mechanical and bioprosthetic valves. Mechanical valves are subdivided into caged-ball, tilting-disk, and bileaflet. Bioprosthetic valves are subdivided into stented heterografts, homografts, and stentless heterografts. The homograft and stentless heterograft valves are designed for implantation in the aortic or pulmonic position. All the other valve types can be implanted in any valve position. Mechanical valves are generally preferred in patients who require long-term anticoagulation for other reasons, such as an existing mechanical prosthesis in another position or atrial fibrillation. Patients unwilling or unable to take warfarin or to comply with long-term monitoring should receive tissue valves. Complications and valve dysfunction are also reviewed.

Chapter.  5288 words.  Illustrated.

Subjects: Cardiovascular Medicine

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