Growth effects of anastomosis site on patient-specific aortic hemodynamics after coarctation correction: A numerical study

Le Mao, Weimin Zhang, Haifa Hong, Qi Sun, Junrong Huang, Jinfen Liu, Jinlong Liu, Zhongqun Zhu, Yi Qian, Qian Wang, Mitsuo Umezu

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Coarctation of the aorta (CoA) is one of the most common congenital cardiac anomalies that could be corrected by surgery. However, the effects of surgical anastomosis on aortic arch flow are still unknown. In this study, a unique three-dimensional way was utilized to measure the growth of anastomotic site and computational fluid dynamics (CFD) was applied to investigate the hemodynamic effects of the growth of anastomosis site on patient-specific aortic arch flow before, 1 year and 2 years after surgery. The volume of anastomotic site, distribution of total pressure, wall shear stress (WSS), streamlines, energy efficiency and flow distribution ratio were calculated. The results indicated that the volume of anastomotic site has grown at 2-year follow-up. The total pressure and WSS were more uniformly distributed, whereas the three branches of aortic arch showed varying degrees of hypoperfusion. Energy efficiency increased obviously as the growth of anastomotic site. Our results implied that the numerical methods can be applied to evaluate the long-term effects of anastomosis site growth on aortic arch flow.

    Original languageEnglish
    Title of host publication2015 10th Asian Control Conference: Emerging Control Techniques for a Sustainable World, ASCC 2015
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Print)9781479978625
    DOIs
    Publication statusPublished - 2015 Sep 8
    Event10th Asian Control Conference, ASCC 2015 - Kota Kinabalu, Malaysia
    Duration: 2015 May 312015 Jun 3

    Other

    Other10th Asian Control Conference, ASCC 2015
    CountryMalaysia
    CityKota Kinabalu
    Period15/5/3115/6/3

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    Keywords

    • anastomotic site
    • coarctation of the aorta
    • computational fluid dynamics
    • congenital heart defect
    • hemodynamics

    ASJC Scopus subject areas

    • Control and Systems Engineering

    Cite this

    Mao, L., Zhang, W., Hong, H., Sun, Q., Huang, J., Liu, J., Liu, J., Zhu, Z., Qian, Y., Wang, Q., & Umezu, M. (2015). Growth effects of anastomosis site on patient-specific aortic hemodynamics after coarctation correction: A numerical study. In 2015 10th Asian Control Conference: Emerging Control Techniques for a Sustainable World, ASCC 2015 [7244734] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ASCC.2015.7244734