Evaluation of freestyle bioprosthesis behavior in mechanical circulatory system

• Autorzy: Fujimoto T. , Kawaguchi D. , Shiraishi Y. , Iwasaki K. , Arita M. , Umezu M.
• Języki publikacji: EN

Abstrakty

EN

A freestyle prosthetic heart valve using a porcine aortic root is expected to yield high performance. In this study, Subcoronary and Full-root techniques, that are mainly used for implanting the freestyle bioprosthesis into the aorta, were simulated under conditions in which the degree of elasticity around the bioprosthesis at the aortic root position was varied in a mechanical circulatory system. As a result, the forward flow at the bioprosthesis in the case of the Subcoronary was 11% greater than that of the Full-root. The variation in the elasticity around the bioprosthesis was suggested to influence the hydrodynamic characteristics.

Słowa kluczowe

EN

freestyle bioprosthesis; stentless prosthetic heart valve; mechanical circulatory system; high-speed video camera

PL

bioproteza; zastawka serca; układ krążenia

• Wydawca: Nałęcz Institute of Biocybernetics and Biomedical Engineering of the Polish Academy of Sciences ; Elsevier
• Czasopismo: Biocybernetics and Biomedical Engineering
• Rocznik: 2003
• Tom: Vol. 23, no. 2
• Strony: 51--55
• Opis fizyczny: Bibliogr. 4 poz., rys., wykr.

Twórcy

autor

Fujimoto T.

• Departament of Mechanical Engineering, Shibaura Institute of Technology, Tokyo, Japan

autor

Kawaguchi D.

• Departament of Mechanical Engineering, Waseda University, Tokyo, Japan

autor

Shiraishi Y.

• Departament of Mechanical Engineering, Waseda University, Tokyo, Japan

autor

Iwasaki K.

• Departament of Mechanical Engineering, Waseda University, Tokyo, Japan

autor

Arita M.

• Departament of Mechanical Engineering, Waseda University, Tokyo, Japan

autor

Umezu M.

• Departament of Mechanical Engineering, Waseda University, Tokyo, Japan

Bibliografia

• [1] Medtronic Inc.: Freestyle Aortic Root Bioprosthesis Seven Year Clinical Compendium, 2001, A1-AP4.
• [2] Fujimoto T., Kawaguchi D., Shiraishi Y., Iwasaki K., Arita M., Yoshida M., Umezu M.: Comparison of freestyle bioprosthesis bevior under different implanting conditions. Int. J. Artif. Organs 2001, 24, 573.
• [3] Fujimoto T., Tsutsumi Y., Shiraishi Y., Iwasaki K., Yoshida M., Umezu M., Begg J., Woodard J.: A study on the relationship between hemolysis and rotation in a prosthetic heart valve under spiral flow conditions. Int. J. Artif. Organs 2000, 23, 558.
• [4] Fujimoto T.: A study of the relationship between atrial contraction and prosthetic mitral valve behavior in a mechanical circulatory system. Jikeikai Med. J. 1998, 45, 47-56.