Results 21 to 30 of about 407,209 (362)
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2021 Background The ratio of acceleration time/ejection time (AT/ET) is a simple and reproducible echocardiographic parameter that integrates aortic stenosis severity and its consequences on the left ventricle.
Alexandre Altes +10 more
doaj +1 more source
Guided Tissue Regeneration in Heart Valve Replacement: From Preclinical Research to First-in-Human Trials [PDF]
, 2015 Heart valve tissue-guided regeneration aims to offer a functional and viable alternative to current prosthetic replacements. Not requiring previous cell seeding and conditioning in bioreactors, such exceptional tissue engineering approach is a very ...
Gerosa, Gino, Iop, Laura
core +4 more sources
JACC: Case Reports, 2021 A 79-year-old woman was treated with a 23-mm balloon-expandable transcatheter heart valve (THV) that was initially complicated by an embolized THV requiring deployment in the descending aorta. She presented 13-years later with a degenerated bioprosthesis
Abdul Rahman Ihdayhid, MBBS, PhD +4 more
doaj +1 more source
Nanopatterned acellular valve conduits drive the commitment of blood-derived multipotent cells [PDF]
, 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
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2017 BackgroundCardiac disease after mediastinal radiotherapy for thoracic malignancy (chest radiotherapy [XRT]) often manifests as progressive aortic stenosis.
Eoin Donnellan +10 more
doaj +1 more source
Comparative study of wall shear stress at the ascending aorta for different mechanical heart valve prostheses [PDF]
, 2019 An experimental study is reported which investigates the wall shear stress (WSS) distribution in a transparent model of the human aorta comparing a bileaflet mechanical heart valve (BMHV) with a trileaflet mechanical heart valve (TMHV) in physiological ...
Bruecker, C., Li, Q.
core +1 more source
Conduction Abnormalities After Transcatheter Aortic Valve Replacement
US Cardiology Review, 2019 Transcatheter aortic valve replacement (TAVR) has been established as a therapeutic option for patients with severe symptomatic aortic stenosis who are of intermediate or higher surgical risk.
Somsupha Kanjanauthai +3 more
doaj +1 more source
Moderate Aortic Stenosis: What is it and When Should We Intervene?
Interventional Cardiology: Reviews, Research, Resources, 2021 Current guidelines recommend aortic valve replacement in patients with severe aortic stenosis in the presence of symptoms or a left ventricular ejection fraction
Sveeta Badiani +4 more
doaj +1 more source
The living aortic valve: From molecules to function. [PDF]
, 2014 The aortic valve lies in a unique hemodynamic environment, one characterized by a range of stresses (shear stress, bending forces, loading forces and strain) that vary in intensity and direction throughout the cardiac cycle.
Bertazzo, S +5 more
core +1 more source
Design and Fabrication of Three-Dimensional Scaffolds for Tissue Engineering of Human Heart Valves [PDF]
, 2009 We developed a new fabrication technique for 3-dimensional scaffolds for tissue engineering of human heart valve tissue. A human aortic homograft was scanned with an X-ray computer tomograph.
Fu, P. +8 more
core +1 more source