Document Detail


Hydrodynamic evaluation of axillary artery perfusion for normal and diseased aorta.
MedLine Citation:
PMID:  18470685     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Axillary artery perfusion is an attractive alternative to reduce the frequency of atheroembolism in extensive atherosclerotic aorta and aortic aneurysms. This study was conducted to evaluate the flow dynamics of axillary artery perfusion. Transparent glass models of a normal aortic arch and an aortic arch aneurysm were used to evaluate hydrodynamic properties. Streamline analysis and distribution of the shear stress was evaluated using a particle image velocity method. In the normal aortic arch model, rapid flow of 80 cm/s from the right axillary artery ran out from the brachiocephalic artery and grazed the lesser curvature of the aortic arch. There was secondary reversed flow in the ascending aorta. Flow from left axillary perfusion went straight to the descending aorta. In the aortic arch aneurysm model, flow from both axillary arteries hit the lesser curvature of the aortic arch and went into the ascending aorta with vortical flow. Distribution of shear stress was high along the jet from the ostium of the brachiocephalic artery and left subclavian artery. Flow in the aortic arch and the ascending aorta was unexpectedly rapid. Special care must be taken when the patient has frail atheroma around arch vessels or the lesser curvature of the aortic arch during axillary artery perfusion.
Authors:
Masahito Minakawa; Ikuo Fukuda; Takao Inamura; Hideki Yanaoka; Kozo Fukui; Kazuyuki Daitoku; Yasuyuki Suzuki; Hiroshi Hashimoto
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-05-11
Journal Detail:
Title:  General thoracic and cardiovascular surgery     Volume:  56     ISSN:  1863-6705     ISO Abbreviation:  -     Publication Date:  2008 May 
Date Detail:
Created Date:  2008-05-12     Completed Date:  2008-06-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101303952     Medline TA:  Gen Thorac Cardiovasc Surg     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  215-21     Citation Subset:  IM    
Affiliation:
Department of Thoracic and Cardiovascular Surgery, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan.
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MeSH Terms
Descriptor/Qualifier:
Aorta, Thoracic / physiology,  physiopathology*,  radiography
Aortic Aneurysm, Thoracic / physiopathology*,  radiography
Aortography
Axillary Artery* / physiology,  physiopathology
Blood Flow Velocity
Brachiocephalic Trunk / physiology,  physiopathology
Computer Simulation
Hemodynamics*
Hemorheology
Humans
Models, Anatomic
Models, Cardiovascular
Reference Values
Regional Blood Flow
Stress, Mechanical
Subclavian Artery / physiology,  physiopathology
Time Factors
Tomography, X-Ray Computed

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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