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

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

    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
    Subtitle of host publicationEmerging control techniques for a sustainable world, ASCC 2015
    EditorsAC Soh, H Selamat, RZA Rahman, AJ Ishak, SA Ahmad, HRH Ramli, AAM Faudzi
    Place of PublicationUnited States
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Pages1-5
    Number of pages5
    ISBN (Electronic)9781479978625
    ISBN (Print)9781479978632
    DOIs
    Publication statusPublished - Sep 2015
    Event10th Asian Control Conference, ASCC 2015 - Kota Kinabalu, Malaysia
    Duration: 31 May 20153 Jun 2015

    Other

    Other10th Asian Control Conference, ASCC 2015
    CountryMalaysia
    CityKota Kinabalu
    Period31/05/153/06/15

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