Results 71 to 80 of about 2,647,008 (379)

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

open access: yesEuropean 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   +11 more
semanticscholar   +1 more source

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

open access: yesAdvanced 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   +6 more
wiley   +1 more source

Cytokine expression profile of native heart valves obtained from patients with infective endocarditis

open access: yesМедицинская иммунология
Infectious endocarditis is characterized by dysfunction of heart valves and contribute significantly to the cardiovascular morbidity and mortality worldwide, especially in low- and middle-income countries. Immune response is playing the important role in
A. V. Sinitskaya   +7 more
doaj   +1 more source

Innovative Modeling of Outcome in Cardiac Surgery [PDF]

open access: yes, 2013
In the normal heart both left and right ventricle have a valve at the atrio-ventricular connection and at the ventriculo-arterial connection. In the left ventricle the inflow valve is the mitral valve and the outflow valve is the aortic valve.
Mokhles, M.M. (Mostafa)
core   +1 more source

Contribution of Extra‐Cardiac Cells in Murine Heart Valves is Age‐Dependent

open access: yesJournal of the American Heart Association : Cardiovascular and Cerebrovascular Disease, 2017
Background Heart valves are dynamic structures that open and close over 100 000 times a day to maintain unidirectional blood flow during the cardiac cycle.
Lindsey J Anstine   +3 more
semanticscholar   +1 more source

High‐Performance Millimeter Scale Electromagnetic Generator

open access: yesAdvanced 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   +5 more
wiley   +1 more source

EVALUATION OF THE LOCAL PROFILE OF CYTOKINES EXPRESSED BY NATIVE HEART VALVES OBTAINED FROM PATIENTS WITH ACQUIRED HEART DEFECTS

open access: yesБайкальский медицинский журнал, 2023
Doing. The pathogenesis of acquired heart defects is a complex process involving many different factors. One of the triggers for the development of dysfunctions of native heart valves can be an inflammatory process caused by various types of pathogens ...
Anna Victorovna Sinitskaya   +3 more
doaj   +1 more source

A Vertically‐Stacked Optoelectronic Sensor for Localized Hemodynamics Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces a hemodynamics monitoring sensor that features vertically stacked microLEDs and a heterogeneously integrated photodetector. The vertically stacked microLEDs enable localized measurements, and by designing the interoptode distance according to the depth of the target region, this vertically stacked optoelectronic sensor is ...
Taeyeon Lee   +9 more
wiley   +1 more source

Structural evolution of mechanical heart valves (review)

open access: yesВестник трансплантологии и искусственных органов
Prosthetic heart valves are widely used biomedical devices. The need for these prostheses is increasing due to the increasing life expectancy of the general population and the consequent incidence of age-related degenerative valvular defects.
M. A. Lepilin   +9 more
doaj   +1 more source

Hybrid heart valves with VEGF-loaded zwitterionic hydrogel coating for improved anti-calcification and re-endothelialization

open access: yesMaterials Today Bio, 2022
With the aging of the population in worldwide, valvular heart disease has become one of the most prominent life-threatening diseases in human health, and heart valve replacement surgery is one of the therapeutic methods for valvular heart disease ...
Qi Tong   +6 more
doaj  

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