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Why is shear stress important in hemodynamics? 


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Shear stress is important in hemodynamics because it plays a crucial role in the development of cardiovascular diseases such as atherosclerosis and aneurysms. Shear stress refers to the frictional force exerted on the arterial wall by blood flow. Disturbed flow patterns, characterized by low and oscillatory shear stress, are associated with the formation and progression of atherosclerotic lesions . In contrast, laminar flow with steady and high shear stress is atheroprotective . Shear stress also affects endothelial cell function and vascular remodeling. Increased shear stress promotes vasodilation and structural remodeling of arteries . Furthermore, shear stress-related parameters such as wall shear stress (WSS), time-averaged WSS (TAWSS), oscillatory shear index (OSI), and relative residence time (RRT) provide important information for evaluating the shear environment on the arterial wall and predicting the risk of rupture in abdominal aortic aneurysms (AAA) . Overall, shear stress is a major determinant of vascular function and can influence the development and progression of cardiovascular diseases.

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Shear stress is important in hemodynamics because it plays a role in the development of atherosclerotic lesions and the occurrence of aneurysms.
Open accessJournal ArticleDOI
Kyung-Sun Heo, Keigi Fujiwara, Jun Ichi Abe 
120 Citations
Shear stress is important in hemodynamics because it plays a crucial role in regulating endothelial homeostasis and vascular function, and is involved in the development of cardiovascular diseases such as atherosclerosis.
Shear stress is important in hemodynamics because it defines the level of frictional force on the arterial wall, which can affect the remodeling mechanism of arteries and lead to abnormal conditions.
The provided paper does not directly answer the question of why shear stress is important in hemodynamics.

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