Results 81 to 90 of about 6,576 (220)

Facile engineering of interactive double network hydrogels for heart valve regeneration

open access: yesNature Communications
Regenerative heart valve prostheses are essential for treating valvular heart disease, which requested interactive materials that can adapt to the tissue remodeling process.
Jinsheng Li   +12 more
doaj   +1 more source

Avaliação clínica e ecocardiográfica de pacientes submetidos a implante de bioprótese mitral com preservação da valva natural Clinical and echocardiography evaluation of patients submitted to mitral bioprosthesis implantations with preservation of their native valves

open access: yesBrazilian Journal of Cardiovascular Surgery, 1990
O objetivo deste trabalho é apresentar os resultados pós-operatórios preliminares de 16 pacientes submetidos a implante de bioprótese valvular de pericárdio bovino com preservação de suas valvas naturais, operados seqüencialmente no período de março a ...
Altamiro Ribeiro Dias   +10 more
doaj  

An intelligent nanoreservoir system promotes heart valve regeneration via ROS scavenging and immunomodulation

open access: yesBioactive Materials
In situ regeneration of tissue-engineered heart valves (TEHV) is a promising strategy to overcome the limitations of existing heart valve prostheses. Although, decellularized aortic valves (DAVs) are widely regarded as a scaffold in the construction of ...
Pengning Fan   +14 more
doaj   +1 more source

Pulsatile flow testing of heart valve prostheses in vitro [PDF]

open access: gold, 2022
Sebastian Kaule   +8 more
openalex   +1 more source

Purinergic ecto-enzymes in human and ovine aortic valves: indicators of bacterial nanocellulose scaffold cellularization

open access: yesArtificial Cells, Nanomedicine, and Biotechnology
Purinergic signalling pathways play a vital role in the biological functions of the aortic valve (AV) through nucleotide and adenosine-dependent receptor effects.
Barbara Kutryb-Zając   +9 more
doaj   +1 more source

Feasibility Study for Dual Phase Free Breathing 3D bSSFP MRA With Preserved Eddy‐Current Tolerance With Adaptive k‐Space Lengths (PETAL) Acquisition

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 4, Page 2078-2091, April 2026.
ABSTRACT Purpose To demonstrate the feasibility of a novel dual‐phase self‐navigated, free‐breathing balanced steady‐state free‐precession whole‐heart MRA acquisition for aortic annulus size measurement using a Cartesian trajectory that mitigates eddy‐current artifacts by minimizing k‐space jumps between consecutive readouts with predictable scan times.
Tassia Ribeiro Salles Moura   +11 more
wiley   +1 more source

Tratamento cirúrgico das valvopatias: parte 1 Valvopathies: surgical treatment. Part 1

open access: yesBrazilian Journal of Cardiovascular Surgery, 1994
Este assunto, de amplo aspecto, será abordado em três partes. O presente trabalho trata-se do histórico, indicação cirúrgica, conduta pré-operatória e próteses valvulares cardíacas.
Domingo M. Braile   +3 more
doaj  

Percutaneous Left Atrial Appendage Occlusion for Atrial Fibrillation in Cardiac Amyloidosis

open access: yesJournal of Arrhythmia, Volume 42, Issue 1, February 2026.
Left atrial appendage occlusion‐related outcomes in patients with amyloid cardiomyopathy. ABSTRACT Background Cardiac amyloidosis (CA) is frequently complicated by atrial fibrillation (AF), yet outcomes after left atrial appendage occlusion (LAAO) in this population remain poorly defined.
Abdul Hakim Almakadma   +10 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

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