A Novel Sensorized Heart Valve Prosthesis: Preliminary In Vitro Evaluation. [PDF]
Sensors (Basel), 2018 Background: Recent studies have shown that subclinical valve thrombosis in heart valve prosthesis (HVP) can be responsible for reduced leaflet motion detectable only by advanced imaging diagnostics. We conceived a novel sensorized HVP able to detect earlier any thrombus formation that may alter the leaflets motion using an electric impedance ...
Marcelli E +3 more
europepmc +10 more sources
Structural valve deterioration in the Mitroflow biological heart valve prosthesis [PDF]
European Journal of Cardio-Thoracic Surgery, 2017 Concern has been raised regarding the long-term durability of the Mitroflow biological heart valve prosthesis. Our aim was to assess the incidence of structural valve degeneration (SVD) for the Mitroflow bioprosthesis in a nationwide study in Denmark including all patients alive in Denmark who had received a Mitroflow aortic bioprosthesis since 2000 ...
Issa, Issa Farah +9 more
semanticscholar +8 more sources
A Computational Tool for the Microstructure Optimization of a Polymeric Heart Valve Prosthesis. [PDF]
J Biomech Eng, 2016 Styrene-based block copolymers are promising materials for the development of a polymeric heart valve prosthesis (PHV), and the mechanical properties of these polymers can be tuned via the manufacturing process, orienting the cylindrical domains to achieve material anisotropy.
Serrani M +6 more
europepmc +7 more sources
Optimum INR intensity and therapeutic INR control in patients with mechanical heart valve prosthesis on warfarin oral anticoagulation at Dr George Mukhari academic hospital: a three-year retrospective study [PDF]
South African Family Practice, 2018 Background: Available evidence suggest that the optimum prothrombin time-international normalised ratio (PT-INR) intensities recommended for anticoagulation of patients with mechanical heart valve prosthesis may not apply to all race groups.
S. Ntlokotsi +4 more
doaj +3 more sources
The longest functioning heart valve prosthesis? [PDF]
The Journal of Thoracic and Cardiovascular Surgery, 2007 Lognathen Balacumaraswami +3 more
core +6 more sources
Choice of heart valve prosthesis [PDF]
Heart, 2002 It is 40 years since Starr and Edwards' description of successful prosthetic valve replacement in 1961. Some patients who underwent valve replacement with the original Starr-Edwards prosthesis in the 1960s are alive to this day. The Starr-Edwards ball and cage prosthesis, albeit in modified form, is still available commercially.
P Bloomfield
openaire +5 more sources
Progress on a Novel, 3D-Printable Heart Valve Prosthesis. [PDF]
Polymers (Basel), 2023 (1) Background: Polymeric heart valves are prostheses constructed out of flexible, synthetic materials to combine the advantageous hemodynamics of biological valves with the longevity of mechanical valves. This idea from the early days of heart valve prosthetics has experienced a renaissance in recent years due to advances in polymer science.
Schröter F +4 more
europepmc +3 more sources
The First Experience of Aortic Valve Repeated Replacement Using the “Valve in Valve” Technique in a Patient With Dysfunction of a Biological Prosthesis [PDF]
Неотложная медицинская помощь, 2021 Introduction. Aortic valve replacement in cardiopulmonary bypass with suture fixation of the prosthesis is the “gold standard” in cardiac surgery. Currently, the frequency of use of heart valve bioprostheses is increasing in older patients.
V. V. Vladimirov +8 more
doaj +3 more sources
Prediction of Turbulent Shear Stresses through Dysfunctional Bileaflet Mechanical Heart Valves using Computational Fluid Dynamics [PDF]
arXiv, 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. However, valves may dysfunction leading to adverse hemodynamic conditions.
Gamage, Peshala T. +2 more
arxiv +3 more sources
Balloon Fracturing Valve-in-Valve: How to Do It and a Case Report of TAVR in a Rapid Deployment Prosthesis [PDF]
Journal of Interventional Cardiology, 2022 Transcatheter aortic valve replacement (TAVR) to treat degeneration of bioprosthetic heart valves (BHVs), called as valve-in-valve (ViV), is becoming a key feature since the number of BHVs requiring intervention is increasing and many patients are at ...
Rodrigo Petersen Saadi +4 more
doaj +2 more sources