Results 11 to 20 of about 121,770 (258)

A New Nanocomposite Copolymer Based On Functionalised Graphene Oxide for Development of Heart Valves

Scientific Reports, 2020
Polymeric heart valves seem to be an attractive alternative to mechanical and biological prostheses as they are more durable, due to the superior properties of novel polymers, and have the biocompatibility and hemodynamics comparable to tissue ...
E. Ovcharenko, A. Seifalian, M. Rezvova, K. Klyshnikov, T. Glushkova, T. N. Akenteva, L. Antonova, E. Velikanova, Vera S. Chernonosova, G. Y. Shevelev, D. Shishkova, E. Krivkina, Yuliya A. Kudryavceva, A. Seifalian, L. Barbarash   +14 more
semanticscholar   +1 more source

Developing the Tissue Engineered Heart Valve – a Descriptive Hemodynamic and Ultrasound in Vitro Characterization Study of Heart Valves in a Bioreactor [PDF]

Romanian Journal of Cardiology, 2021
The inherent limitations of current heart valve substitutes create the premise for the Tissue Engineered Heart Valve (TEHV), considered the perfect substitute. We aimed to compare in vitro hemodynamic performances of our TEHV, the conventional prosthetic
Ionela MOVILEANU, Dan Octavian NISTOR, Leslie SIERAD, Klara BRINZANIUC, Codrut OPRITA, Marius Mihai HARPA, Terezia PREDA, Ovidiu COTOI, Hussam AL HUSSEIN, Hamida AL HUSSEIN, Alexandru CHERTES, Horatiu SUCIU, Agneta SIMIONESCU, Dan SIMIONESCU   +13 more
doaj   +1 more source

Toward acellular xenogeneic heart valve prostheses: Histological and biomechanical characterization of decellularized and enzymatically deglycosylated porcine pulmonary heart valve matrices

Xenotransplantation, 2020
The use of decellularized xenogeneic heart valves might offer a solution to overcome the issue of human valve shortage. The aim of this study was to revise decellularization protocols in combination with enzymatic deglycosylation, in order to reduce the ...
K. Findeisen, L. Morticelli, T. Goecke, Louisa Kolbeck, R. Ramm, H. Höffler, G. Brandes, Sotirios Korossis, A. Haverich, A. Hilfiker   +9 more
semanticscholar   +1 more source

Commissural Misalignment Following Valve-in-Valve Transcatheter Aortic Valve Implantation. [PDF]

Catheter Cardiovasc Interv
ABSTRACT Background Data on commissural misalignment (CMA) during valve‐in‐valve transcatheter aortic valve implantation (ViV‐TAVI) for valve failure after surgical aortic valve replacement (SAVR) is scarce. Aims To study the impact of CMA on clinical and hemodynamic outcomes following ViV‐TAVI for failed SAVR.
Raschpichler M, Loria JRD, Patel V, Noack T, Nüsser K, Dumpies O, Patel D, Nagasaka T, Madaan P, Gupta A, Thiele H, Borger MA, Makkar R, Abdel-Wahab M.   +13 more
europepmc   +2 more sources

Anticoagulation During Pregnancy with a Mechanical Pulmonary Valve: Patient and Medical Perspective

Cardiology and Therapy, 2022
This article discusses the challenges of supporting a successful pregnancy in a woman with multiple prosthetic heart valves and a complicated cardiac history, from both the patient and provider perspective.
Lauren Ledingham, Amanda Thiess, May Ling Mah   +2 more
doaj   +1 more source

Evaluation of the marker of hypercoagulability prothrombin fragment F 1+2 in patients with mechanical or biological heart valve prostheses

Arquivos Brasileiros de Cardiologia, 2002
OBJECTIVE: To investigate whether patients with heart valve prostheses and similar International Normalized Ratios (INR) have the same level of protection against thromboembolic events, that is, whether the anticoagulation intensity is related to the ...
Claudia Natália Ferreira, Lauro Mello Vieira, Luci Maria Sant'Ana Dusse, Carlos Faria Santos Amaral, William Antônio de Magalhães Esteves, Lúcia Maria Amorim Fenelon, Maria das Graças Carvalho   +6 more
doaj   +1 more source

Echocardiographic assessment of heart valve prostheses

Journal of Cardiovascular Echography, 2014
Patients submitted to valve replacement with mechanical or biological prosthesis, may present symptoms related either to valvular malfunction or ventricular dysfunction from other causes. Because a clinical examination is not sufficient to evaluate a prosthetic valve, several diagnostic methods have been proposed to assess the functional status of a ...
Sordelli, Chiara, Severino, Sergio, Ascione, Luigi, Coppolino, Pasquale, Caso, Pio   +4 more
openaire   +3 more sources

Artificial Heart Valves with Balanced Charged Networks Exhibiting Anti-Calcification Properties.

ACS Applied Bio Materials, 2019
Currently, the only treatment for moderate and severe aortic valve calcification disease is valve replacement. The clinical use of bioprosthetic heart valves (BHVs) is limited because of device failure caused by structural degeneration, such as the ...
Feng Guo, Yunen Liu, K. Jiao, Rui Yang, Mingxiao Hou, Xing Zhang   +5 more
semanticscholar   +1 more source

Surgical techniques for aortic valve xenotransplantation

Journal of Cardiothoracic Surgery, 2021
Background Heart valve replacement in neonates and infants is one of the remaining unsolved problems in cardiac surgery because conventional valve prostheses do not grow with the children.
Jennie H. Kwon, Morgan Hill, Brielle Gerry, Steven W. Kubalak, Muhammad Mohiuddin, Minoo N. Kavarana, T. Konrad Rajab   +6 more
doaj   +1 more source

The Use of Biological Heart Valves.

Deutsches Ärzteblatt International, 2019
BACKGROUND Biological heart-valve prostheses have undergone continuous devel- opment up to the present, and technological advances have been made in catheter- assisted valve systems (transcatheter aortic valve implantation, TAVI) and minimally invasive ...
S. Kueri, F. Kari, R. A. Fuentes, H. Sievers, F. Beyersdorf, W. Bothe   +5 more
semanticscholar   +1 more source