Results 171 to 180 of about 117,950 (235)
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Alloplastic materials for heart-valve prostheses
Medical & Biological Engineering & Computing, 1980Alloplastic materials have found wide application in heart-valve prostheses, in spite of the need for permanent anticoagulant treatment. Though biological valves exhibit excellent thromboresistance, they fail in long-term application because of a disintegration of the tissue structure.
P, Baurschmidt, M, Schaldach
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International Journal of Artificial Organs, 2019
The past 65 years have witnessed remarkable progress in the development of safe, hemodynamically favorable mechanical heart valves. Today, there are a large number and variety of prostheses in use and many prostheses have been used for a while and then ...
M. Kalçık +9 more
semanticscholar +1 more source
The past 65 years have witnessed remarkable progress in the development of safe, hemodynamically favorable mechanical heart valves. Today, there are a large number and variety of prostheses in use and many prostheses have been used for a while and then ...
M. Kalçık +9 more
semanticscholar +1 more source
Colloids and Surfaces B: Biointerfaces, 2014 Tissue-Engineered Heart Valve Prostheses: ‘State of the Heart‘
Regenerative Medicine, 2008In this article, we will review the current state of the art in heart valve tissue engineering. We provide an overview of mechanical and biological replacement options, outlining advantages and limitations of each option. Tissue engineering, as a field, is introduced, and specific aspects of valve tissue engineering are discussed (e.g., biomaterials ...
Francesco, Migneco +2 more
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2015
Abstract Echocardiography is the single most-useful imaging modality to assess heart valve prosteses function. In the majority of patients, transthoracic echocardiography (TTE) is sufficient to assess baseline prostehsis hemodynamics and routine follow-up studies.
Luigi P. Badano, Denisa Muraru
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Abstract Echocardiography is the single most-useful imaging modality to assess heart valve prosteses function. In the majority of patients, transthoracic echocardiography (TTE) is sufficient to assess baseline prostehsis hemodynamics and routine follow-up studies.
Luigi P. Badano, Denisa Muraru
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Pitfalls in statistical analysis of heart valve prostheses
The Annals of Thoracic Surgery, 1989Beware of the dangers of automated analysis, especially in multiple regression, and of overinterpretation of data. Do not let yourself be manipulated by numbers.
G L, Grunkemeier, A, Starr
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JACC: Cardiovascular Interventions, 2023
BACKGROUND Valve-in-valve (ViV) transcatheter aortic valve replacement (TAVR) may be associated with adverse hemodynamics, which might affect clinical outcomes.
M. Fukui +11 more
semanticscholar +1 more source
BACKGROUND Valve-in-valve (ViV) transcatheter aortic valve replacement (TAVR) may be associated with adverse hemodynamics, which might affect clinical outcomes.
M. Fukui +11 more
semanticscholar +1 more source
2010
Prosthetic heart valves may be mechanical or bioprosthetic. Mechanical valves, which are composed primarily of metal or carbon alloys, are classified according to their design as ball-caged, single-tilting-disc, or bileaflet-tilting-disc valves (Fig. 9.1). In ball-caged valves, the occluder is a sphere that is contained by a metal “cage” when the valve
Luigi P. Badano, Rosa Sicari
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Prosthetic heart valves may be mechanical or bioprosthetic. Mechanical valves, which are composed primarily of metal or carbon alloys, are classified according to their design as ball-caged, single-tilting-disc, or bileaflet-tilting-disc valves (Fig. 9.1). In ball-caged valves, the occluder is a sphere that is contained by a metal “cage” when the valve
Luigi P. Badano, Rosa Sicari
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A hydraulic figure‐of‐merit for heart valve prostheses
Journal of Biomedical Materials Research, 1967AbstractThe pressure losses in the currently available prostheses are too high. We believe an excellent way to focus designers' attention upon this fact is to rank the various designs according to their hydraulic efficiency. The proposal of this paper is for pressure drop vs.
R F, Viggers, S B, Robel, L R, Sauvage
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