Impact of Competitive Flow on Hemodynamics in Coronary Surgery : Numerical Study of ITA-LAD Model
Joint Authors
Ding, Jinli
Liu, Youjun
Bai, Fan
Wang, Feng
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-09-10
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Competitive flow from native coronary artery is considered as a major factor in the failure of the coronary artery bypass grafts.
However, the physiological effects are not very clear.
The aim is to research the impact of competitive flow caused by different left anterior descending (LAD) artery stenosis degrees on hemodynamics in internal thoracic artery (ITA) bypass graft.
An idealized ITA-LAD model was built in CAD tools.
The degree of the competitive flow was divided into five classes according to different LAD stenosis degrees: higher (no stenosis), secondary (30% stenosis), reduced (50% stenosis), lower (75% stenosis) and no competitive flow (fully stenosis).
Finite volume method was employed for the numerical simulation.
The flow velocity distributions, wall shear stress and oscillatory shear index were analyzed.
Results showed that higher competitive flow in the bypass graft would produce unbeneficial wall shear stress distribution associating with endothelial dysfunction and subsequent graft failure.
The coronary bypass graft surgery was preferred to be carried out when the LAD stenosis was higher than 75%.
American Psychological Association (APA)
Ding, Jinli& Liu, Youjun& Wang, Feng& Bai, Fan. 2012. Impact of Competitive Flow on Hemodynamics in Coronary Surgery : Numerical Study of ITA-LAD Model. Computational and Mathematical Methods in Medicine،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-465389
Modern Language Association (MLA)
Ding, Jinli…[et al.]. Impact of Competitive Flow on Hemodynamics in Coronary Surgery : Numerical Study of ITA-LAD Model. Computational and Mathematical Methods in Medicine No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-465389
American Medical Association (AMA)
Ding, Jinli& Liu, Youjun& Wang, Feng& Bai, Fan. Impact of Competitive Flow on Hemodynamics in Coronary Surgery : Numerical Study of ITA-LAD Model. Computational and Mathematical Methods in Medicine. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-465389
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-465389