Results 41 to 50 of about 3,694,568 (218)

Long-term durability of a new surgical aortic valve: A 1 billion cycle in vitro studyCentral MessagePerspective

JTCVS Open, 2022
Background: This study assessed the long-term hemodynamic functional performance of the new Inspiris Resilia aortic valve after accelerated wear testing (AWT). Methods: Three 21-mm and 23-mm Inspiris valves were used for the AWT procedure.
Vahid Sadri, PhD, Phillip M. Trusty, PhD, Immanuel David Madukauwa-David, PhD, Ajit P. Yoganathan, PhD   +3 more
doaj   +1 more source

Impact of reintervention after index aortic valve replacement on the risk of subsequent mortalityCentral MessagePerspective

JTCVS Open, 2023
Objectives: The use of bioprosthetic aortic valve replacement (AVR) is inherently associated with a risk of structural valve degeneration (SVD) and the need for aortic valve (AV) reintervention.
William Y. Shi, MD, PhD, Alexandra Malarczyk, BS, Ryan A. Watson, MD, Prem Patel, BS, Paige Newell, MD, Jake Awtry, MD, Siobhan McGurk, BS, Tsuyoshi Kaneko, MD   +7 more
doaj   +1 more source

Aortic valve replacement after previous TAVI

Вестник трансплантологии и искусственных органов, 2023
Endovascular surgery for aortic valve defects has proven itself well in elderly patients with severe comorbidities competing with the underlying disease. However, the risk of dysfunction resulting from structural degeneration of bioprosthetic heart valve
D. A. Titov, M. N. Sorkomov, D. M. Pursanova, M. I. Fedoseykina, S. I. Babenko, R. M. Muratov   +5 more
doaj   +1 more source

Prosthesis-Patient Mismatch Predicts Structural Valve Degeneration in Bioprosthetic Heart Valves [PDF]

Circulation, 2010
Background— Prosthesis-patient mismatch (P-PtM) after aortic valve replacement results in disturbed valve performance associated with increased pressure gradients. However, it is unknown whether this can be related to future structural valve deterioration (SVD) of the bioprosthesis.
Willem, Flameng, Marie-Christine, Herregods, Monique, Vercalsteren, Paul, Herijgers, Kris, Bogaerts, Bart, Meuris   +5 more
openaire   +2 more sources

Clinical and Technical Challenges of Prosthesis–Patient Mismatch After Transcatheter Aortic Valve Implantation

Frontiers in Cardiovascular Medicine, 2021
Prosthesis–patient mismatch (PPM) is present when the effective area of a prosthetic valve inserted into a patient is inferior to that of a normal human valve; the hemodynamic consequence of a valve too small compared with the size of the patient's body ...
Pier Pasquale Leone, Pier Pasquale Leone, Fabio Fazzari, Francesco Cannata, Francesco Cannata, Jorge Sanz-Sanchez, Jorge Sanz-Sanchez, Antonio Mangieri, Lorenzo Monti, Ottavia Cozzi, Ottavia Cozzi, Giulio Giuseppe Stefanini, Giulio Giuseppe Stefanini, Renato Bragato, Antonio Colombo, Bernhard Reimers, Damiano Regazzoli   +16 more
doaj   +1 more source

Structural valve degeneration: are there common mechanisms with atherosclerosis and calcific aortic stenosis?

Russian Journal of Transplantology and Artificial Organs, 2022
Current research shows that some of the pathogenetic processes behind structural destruction of bioprosthetic valves are largely similar to those involved in the development of atherosclerotic vascular lesions and native valve calcification.
A. Kostyunin
semanticscholar   +1 more source

Bioprosthetic Aortic Valve Degeneration: a Review from a Basic Science Perspective

Brazilian Journal of Cardiovascular Surgery, 2021
Introduction: The increase in the prevalence of aortic stenosis due to an aging population has led to an increasing number of surgical aortic valve replacements.
Tiago R Velho, Rafael Maniés Pereira, Frederico Fernandes, Nuno Carvalho Guerra, Ricardo Ferreira, Ângelo Nobre   +5 more
doaj   +1 more source

Bioprosthetic Heart Valves: Upgrading a 50-Year Old Technology

Frontiers in Cardiovascular Medicine, 2019
Prosthetic heart valves have been commonly used to address the increasing prevalence of valvular heart disease. The ideal prosthetic heart valve substitute should closely mimic the characteristics of a normal native heart valve.
Kan Yan Chloe Li
doaj   +1 more source

Expression of tissue inhibitors of metalloproteinases type 1 and type 2 in the leaflets of explanted bioprosthetic heart valves: a new pathogenetic parallel between structural valve degeneration and calcific aortic stenosis

Russian Journal of Transplantology and Artificial Organs, 2021
Objective: to study cellular and lipid infiltration, as well as the expression of tissue inhibitors of metalloproteinases (TIMP) types 1 and 2 in biological prosthetic heart valves (BPHVs) explanted due to dysfunction.Material and Methods. We examined 17
A. Kostyunin, T. Glushkova, L. Bogdanov, E. Ovcharenko   +3 more
semanticscholar   +1 more source

Polymeric prosthetic heart valves: A review of current technologies and future directions

Frontiers in Cardiovascular Medicine, 2023
Valvular heart disease is an important source of cardiovascular morbidity and mortality. Current prosthetic valve replacement options, such as bioprosthetic and mechanical heart valves are limited by structural valve degeneration requiring reoperation or
Sameer K. Singh, Mateusz Kachel, Mateusz Kachel, Estibaliz Castillero, Yingfei Xue, David Kalfa, Giovanni Ferrari, Isaac George   +7 more
doaj   +1 more source