Hemodynamic influence of surgical methods on systemic-to-pulmonary shunt: Modified Blalock-Taussig shunt versus Melbourne shunt

Qian Wang, Yi Qian, Haifa Hong, Qi Sun, Yanjun Sun, Jinfen Liu, Jinlong Liu, Mitsuo Umezu

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

    Abstract

    The systemic-to-pulmonary artery shunt is an effective procedure widely used in the therapy of congenital heart defect (CHD). To better understand the local flow features may provide hemodynamic information for patient-specific surgical design. Here, we report on three-dimensional (3D) hemodynamic analysis of two schemes of this procedure; the modified Blalock-Taussig shunt (MBTS) and Melbourne shunt. A patient-specific 3D model after the MBTS was reconstructed. We applied the technique of computer-aided design (CAD) to virtually create a model of Melbourne shunt based on vascular anatomical position. Pressure drop, wall shear stress (WSS), streamlines and blood flow distribution ratio were calculated by computational fluid dynamics (CFD). We found more blood distribution and high pressure were observed at pulmonary artery in Melbourne shunt. This indicates to control the balance of blood flow distributed to systemic and pulmonary circulation small size shunt will be more favorable in the procedure of Melbourne shunt. The choice of surgery schemes for patient-specific surgery can be done by the analysis local hemodynamics.

    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

    • computational fluid dynamics
    • congenital heart defect
    • hemodynamics
    • Melbourne shunt
    • modified Blalock-Taussig shunt

    ASJC Scopus subject areas

    • Control and Systems Engineering

    Cite this

    Wang, Q., Qian, Y., Hong, H., Sun, Q., Sun, Y., Liu, J., Liu, J., & Umezu, M. (2015). Hemodynamic influence of surgical methods on systemic-to-pulmonary shunt: Modified Blalock-Taussig shunt versus Melbourne shunt. In 2015 10th Asian Control Conference: Emerging Control Techniques for a Sustainable World, ASCC 2015 [7244754] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ASCC.2015.7244754