Results 61 to 70 of about 2,650,139 (381)

Comparative study of wall shear stress at the ascending aorta for different mechanical heart valve prostheses [PDF]

, 2019
An experimental study is reported which investigates the wall shear stress (WSS) distribution in a transparent model of the human aorta comparing a bileaflet mechanical heart valve (BMHV) with a trileaflet mechanical heart valve (TMHV) in physiological ...
Bruecker, C., Li, Q.
core   +1 more source

Fluid Mechanics of Heart Valves and Their Replacements

, 2016
As the pulsatile cardiac blood flow drives the heart valve leaflets to open and close, the flow in the vicinity of the valve resembles a pulsed jet through a nonaxisymmetric orifice with a dynamically changing area.
F. Sotiropoulos, T. Le, A. Gilmanov
semanticscholar   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Twisted atrioventricular connections in double inlet right ventricle: evaluation by magnetic resonance imaging [PDF]

, 2008
Twisted atrioventricular connections occur almost exclusively in the hearts with biventricular atrioventricular connections. Only one example of double inlet left ventricle has been illustrated in which the axes of the two atrioventricular valves crossed
Anderson, RH, Ho, SY, Kim, TH, Yoo, SJ
core   +1 more source

Midterm outcomes of mechanical versus bioprosthetic valve replacement in middle-aged patients: An Indian scenario

Heart India, 2017
Objective: The goal of this study is to evaluate and compare the midterm outcomes of bioprosthetic heart valve replacement in terms of survival, valve-related events, quality of life, and economic aspects of treatment in population age 45 years and above
Dheeraj Sharma, Anula Sisodia, Sanjeev Devgarha, Rajendra Mohan Mathur   +3 more
doaj   +1 more source

Age-Dependent Changes in Geometry, Tissue Composition and Mechanical Properties of Fetal to Adult Cryopreserved Human Heart Valves

PLoS ONE, 2016
There is limited information about age-specific structural and functional properties of human heart valves, while this information is key to the development and evaluation of living valve replacements for pediatric and adolescent patients.
D. van Geemen, A. Soares, P. Oomen, A. Driessen-Mol, Marloes W J T Janssen-van den Broek, Antoon J. van den Bogaerdt, A. Bogers, M. Goumans, F. Baaijens, C. Bouten   +9 more
semanticscholar   +1 more source

Flow‐Induced Vascular Remodeling on‐Chip: Implications for Anti‐VEGF Therapy

Advanced Functional Materials, EarlyView.
Flow‐induced vascular remodeling plays a critical role in network stabilization and function. Using a vasculature‐on‐chip system, this study reveals how physiological VEGF levels and flow affect vascular remodeling and provides insights into tumor vessel normalization.
Fatemeh Mirzapour‐Shafiyi, Elias Huber, Leonie Karr, Johnny Tong, Andreas Richard Bausch, Friedrich Christian Simmel, Karen Alim   +6 more
wiley   +1 more source

Inhibition of MAPK-Erk pathway in vivo attenuates aortic valve disease processes in Emilin1-deficient mouse model [PDF]

, 2017
Aortic valve disease (AVD) is a common condition with a progressive natural history, and presently, there are no pharmacologic treatment strategies. Elastic fiber fragmentation (EFF) is a hallmark of AVD, and increasing evidence implicates developmental ...
Aikawa, Barnette, Basalyga, Bonow, Brown-Augsburger, Brunskill, Brunskill, Chung, Fondard, Franco, Gallegos, Gapski, Ghosh, Gu, Helske, Hinton, Hinton, Holm, Ihn, Iverson, Jensen, Keane, Krenz, Liang, Lindeman, Marshall, Mercer, Mohler, Mozaffarian, Munjal, Nishimura, Nkomo, Perrotta, Poggio, Potter, Rajamannan, Rossebo, Sauls, Schmieder, Schoen, Starcher, Vesely, Wirrig, Wylie-Sears, Xiong, Xiong   +45 more
core   +2 more sources

Early hypo-attenuated leaflet thickening in balloon-expandable transcatheter aortic heart valves.

European Heart Journal, 2016
AIMS We sought to evaluate the frequency of early hypo-attenuated leaflet thickening (HALT) of the SAPIEN 3 transcatheter aortic valve (S3). METHODS AND RESULTS Of 249 patients who had undergone S3 implantation, we studied 156 consecutive patients (85 ...
G. Pache, S. Schoechlin, P. Blanke, S. Dorfs, N. Jander, Chesnal D. Arepalli, M. Gick, H. Buettner, J. Leipsic, M. Langer, F. Neumann, P. Ruile   +11 more
semanticscholar   +1 more source

High‐Performance Millimeter Scale Electromagnetic Generator

Advanced Functional Materials, EarlyView.
A high‐performance millimeter‐scale electromagnetic generator (mmEMG) is developed using magnetic flux concentrator (MFC) films on both coil ends to enhance magnetic flux. Through simulations and experiments, structural and magnetic properties are optimized, achieving a 5.6‐fold electrical output improvement.
Jin Pyo Lee, Xinran Zhou, Yangyang Xin, Dace Gao, Peiwen Huang, Pooi See Lee   +5 more
wiley   +1 more source