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 contribution

2 Citations (Scopus)

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
EditorsHazlina Selamat, Hafiz Rashidi Haruna Ramli, Ahmad Athif Mohd Faudzi, Ribhan Zafira Abdul Rahman, Asnor Juraiza Ishak, Azura Che Soh, Siti Anom Ahmad
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479978625
DOIs
Publication statusPublished - 2015 Sept 8
Event10th Asian Control Conference, ASCC 2015 - Kota Kinabalu, Malaysia
Duration: 2015 May 312015 Jun 3

Publication series

Name2015 10th Asian Control Conference: Emerging Control Techniques for a Sustainable World, ASCC 2015

Other

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

Keywords

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

ASJC Scopus subject areas

  • Control and Systems Engineering

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