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
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 Sep 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
CountryMalaysia
CityKota Kinabalu
Period15/5/3115/6/3

Keywords

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

ASJC Scopus subject areas

  • Control and Systems Engineering

Fingerprint Dive into the research topics of 'Growth effects of anastomosis site on patient-specific aortic hemodynamics after coarctation correction: A numerical study'. Together they form a unique fingerprint.

Cite this