Results 101 to 110 of about 2,712,102 (401)

Tissue Heart Valve Replacement at BSMMU- Initial Experience with Two Cases

open access: yesBangabandhu Sheikh Mujib Medical University Journal, 2010
Research on prosthesis to replace diseased heart valves began almost simultaneously with mechanical valves which are durable but with inherent thromboembolic complication requiring life-long anticoagulant therapy and tissue valves which are more prone to
Rezwanul Hoque   +5 more
doaj   +1 more source

Fluid–Structure Interaction Models of Bioprosthetic Heart Valve Dynamics in an Experimental Pulse Duplicator [PDF]

open access: hybrid, 2020
Jae Ho Lee   +8 more
openalex   +1 more source

Atomic‐Level Ionic Displacement Polarization Enhanced Piezocatalytic Hydrogen Evolution in Covalent Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
Two isomorphic COFs were synthesized and compared, including an amphoteric COF (SQ‐TAPT) and a neutral COF (PDA‐TAPT). The ionic bonds in SQ‐TAPT introduce more Born effective charges, thereby enhancing its ionic displacement polarization. Experimental and theoretical calculations demonstrated that SQ‐TAPT exhibited higher polarity and stronger ...
Ge Yan   +12 more
wiley   +1 more source

Recurrent infective endocarditis causing heart valve failure: A case report

open access: yesHuman Pathology: Case Reports, 2017
Infective endocarditis (IE) is an infection that does not usually respond rapidly to treatment, often because its early symptoms are non-specific. The diseased valves (native or bioprosthetic) may be calcified and the thrombotic vegetations on them ...
Victoria McIntyre, BASc Chemical Engineering (2018 candidate)   +3 more
doaj   +1 more source

Topography of aortic heart valves [PDF]

open access: yes
The cooperative effort towards the development of a tri-leaflet prosthetic heart valve is described. The photogrammetric studies were conducted on silicone rubber molds.
Karara, H. M.
core   +1 more source

The anatomy of interatrial communications - what does the interventionist need to know? [PDF]

open access: yes, 2008
Increasingly, the interventional cardiologist is seeking to close interatrial communications by inserting devices by means of catheterisation. So as to optimise these procedures, it is adavantageous to have a firm grasp of the anatomy of the normal ...
Anderson, RH, Martins, JDF
core   +1 more source

Multiple-Step Injection Molding for Fibrin-Based Tissue-Engineered Heart Valves

open access: yesTissue Engineering. Part C, Methods, 2015
Heart valves are elaborate and highly heterogeneous structures of the circulatory system. Despite the well accepted relationship between the structural and mechanical anisotropy and the optimal function of the valves, most approaches to create tissue ...
Miriam Weber   +8 more
semanticscholar   +1 more source

Cell Calcification Models and Their Implications for Medicine and Biomaterial Research

open access: yesAdvanced Healthcare Materials, EarlyView.
Calcification, is the process by which the tissues containing minerals are formed, occurring during normal physiological processes, or in pathological conditions. Here, it is aimed to give a comprehensive overview of the range of cell models available, and the approaches taken by these models, highlighting when and how methodological divergences arise,
Luke Hunter   +5 more
wiley   +1 more source

Do patients with suspected heart failure and preserved left ventricular systolic function suffer from "diastolic heart failure" or from misdiagnosis? A prospective descriptive study [PDF]

open access: yes, 2000
OBJECTIVES: To characterise the clinical features of patients with suspected heart failure but preserved left ventricular systolic function to determine if they have other potential causes for their symptoms rather than being diagnosed with 'diastolic ...
Caruana, L.   +3 more
core   +2 more sources

Mitral Valve Repair of Atrial Functional Mitral Regurgitation in Heart Failure with Preserved Ejection Fraction [PDF]

open access: gold, 2020
Zsuzsanna Balogh   +11 more
openalex   +1 more source

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