Results 31 to 40 of about 191,200 (355)

Evaluation of pliable bioresorbable, elastomeric aortic valve prostheses in sheep during 12 months post implantation

open access: yesCommunications Biology, 2023
Pliable microfibrous, bioresorbable elastomeric heart valve prostheses are investigated in search of sustainable heart valve replacement. These cell-free implants recruit cells and trigger tissue formation on the valves in situ. Our aim is to investigate
Annemijn Vis   +14 more
doaj   +1 more source

Substituição valvar por valva aórtica homóloga montada em suporte e preservada pelo glutaraldeído: estudo multicêntrico Valvar replacement with a glutaraldehyde preserved stent-mounted homologous aortic valve: a multicenter study

open access: yesBrazilian Journal of Cardiovascular Surgery, 1988
A substituição valvar por valva aórtica homóloga montada em suporte flexível e preservada pelo glutaraldeído é procedimento original e informações preliminares já foram relatadas anteriormente.
Ênio Buffolo   +6 more
doaj   +1 more source

Fatores de risco em operações valvares: análise de 412 casos

open access: yesBrazilian Journal of Cardiovascular Surgery, 1997
O tratamento cirúrgico das valvopatias é muito freqüente e sua mortalidade ainda não se aproxima de zero. Neste estudo, procuramos identificar diversos fatores que poderiam aumentar o risco cirúrgico nestes procedimentos.
Ronaldo Machado BUENO   +2 more
doaj   +1 more source

Optimization of anticoagulant therapy in patients undergoing mechanical heart valve replacement

open access: yesФундаментальная и клиническая медицина, 2023
Acquired heart defects have a high prevalence among patients of different age groups and represent a significant social problem. To date, surgery remains the only effective option to treat acquired heart disease, and replacement of the dysfunctional ...
S. A. Tkachenko   +7 more
doaj   +1 more source

Prediction of Turbulent Shear Stresses through Dysfunctional Bileaflet Mechanical Heart Valves using Computational Fluid Dynamics

open access: yes, 2018
There are more than 300,000 heart valves implanted annually worldwide with about 50% of them being mechanical valves. The heart valve replacement is often a common treatment for severe valvular disease.
Gamage, Peshala T.   +2 more
core   +1 more source

Nanopatterned acellular valve conduits drive the commitment of blood-derived multipotent cells [PDF]

open access: yes, 2016
Considerable progress has been made in recent years toward elucidating the correlation among nanoscale topography, mechanical properties, and biological behavior of cardiac valve substitutes.
Aguiari, Paola   +11 more
core   +2 more sources

Prosthetic Heart Valves

open access: yesInternational Journal of Clinical Practice, 2014
Heart valve replacements improve symptoms and life expectancy but may have potential problems. Biological replacements have limited durability but do not require anticoagulation and are usually used for the relatively elderly. Mechanical valves have a virtually zero primary failure rate but require anticoagulation and are usually used for the ...
openaire   +3 more sources

Standards for heart valve surgery in a ‘Heart Valve Centre of Excellence’ [PDF]

open access: yesOpen Heart, 2015
Surgical centres of excellence should include multidisciplinary teams with specialist expertise in imaging, clinical assessment and surgery for patients with heart valve disease. There should be structured training programmes for the staff involved in the periprocedural care of the patient and these should be overseen by national or international ...
Philippe Pibarot   +13 more
openaire   +3 more sources

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

open access: yes, 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   +45 more
core   +2 more sources

The Endocardium and Heart Valves

open access: yesCold Spring Harbor Perspectives in Biology, 2020
Endocardial cells are specialized endothelial cells that, during embryogenesis, form a lining on the inside of the developing heart, which is maintained throughout life. Endocardial cells are an essential source for several lineages of the cardiovascular system including coronary endothelium, endocardial cushion mesenchyme, cardiomyocytes, mural cells,
Bailey K Dye, Joy Lincoln
openaire   +4 more sources

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