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On the Interaction of Natural and Mechanical Heart Valve Leaflets With the Chordae Tendineae

[+] Author Affiliations
Amber R. Mace, Pavlos P. Vlachos, Demetri P. Telionis

Virginia Polytechnic Institute and State University, Blacksburg, VA

Paper No. IMECE2002-32571, pp. 277-278; 2 pages
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Advances in Bioengineering
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-3650-9 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME


Long before mitral valve replacement (MVR) became a routine operation, physiologic studies indicated that the continuity of mitral leaflets with papillary muscles, chordae tendineae (CT) and the atrioventricular ring may play a decisive role in the function of the left ventricle (LV) [1]. This led Lillehei et al. [2] to establish a procedure whereby the posterior leaflet, its CT and papillary muscles were preserved in MVRs. These and other studies indicated a significant reduction of postoperative mortality compared to conventional MVR. Though developed in the early 1960s by Lillehei, the technique of chordal preservation was not initially accepted. It wasn’t until 1983 that surgeons began to revive the concept of MVR with preservation of the CT. As this technique became more widely known, many clinical studies were performed; however, very few have been conducted which examine the effect of leaflets and CT on flow dynamics.

Copyright © 2002 by ASME



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