Results 1 to 10 of about 192,640 (96)

Prosthetic Heart Valve [PDF]

open access: yesCirculation, 2011
A 55-year-old invasive/clinical cardiologist worked full time, exercised regularly, and was asymptomatic. Two weeks previously, he had new onset of angina on exertion. Echocardiography/Doppler and cardiac catheterization confirmed the clinical assessment of severe aortic stenosis with a valve area of 0.5 cm2/m2.
Shahbudin H. Rahimtoola, Grace Huang
openaire   +3 more sources

The Heart Valves

open access: yesCardiology Plus, 2021
Abstract The four heart valves are arranged in different planes from each other. The aortic valve is most centrally located being related to all four cardiac chambers.
openaire   +3 more sources

Reversing Blood Flows Act through klf2a to Ensure Normal Valvulogenesis in the Developing Heart [PDF]

open access: yes, 2009
Heart valve anomalies are some of the most common congenital heart defects, yet neither the genetic nor the epigenetic forces guiding heart valve development are well understood.
A. C Oates   +60 more
core   +5 more sources

Design and Fabrication of Three-Dimensional Scaffolds for Tissue Engineering of Human Heart Valves [PDF]

open access: yes, 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

Dynamic Views of Structure and Function during Heart Morphogenesis [PDF]

open access: yes, 2006
Congenital heart defects remain the most common birth defect in humans, occurring in over 1% of live births. The high prevalence of cardiac malformations can be partially attributed to limited knowledge regarding the embryonic roots of the disease.
Forouhar, Arian Soroush
core   +1 more source

The living aortic valve: From molecules to function. [PDF]

open access: yes, 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

Guided Tissue Regeneration in Heart Valve Replacement: From Preclinical Research to First-in-Human Trials [PDF]

open access: yes, 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

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

Comparative study of wall shear stress at the ascending aorta for different mechanical heart valve prostheses [PDF]

open access: yes, 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

HEART VALVE SURGERY

open access: yesThe Journal of Thoracic and Cardiovascular Surgery, 1965
SUMMARY This paper summarizes the experience in the treatment of a series of 1,370 cases of open-heart surgery. Of these, 964 valvular lesions and the associated pathologic lesion are analyzed. Details of correction and immediate and late results in the treatment of the following groups of lesions were studied: 74 cases of congenital aortic stenosis ...
Delmont Bittencourt   +2 more
openaire   +3 more sources

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