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The most widely used heart valve worldwide is the Edwards Sapien, which currently has 60% of the worldwide transcatheter aortic valve implantation (TAVI) market. The CoreValve is next in line in popularity, encompassing 35% of the worldwide TAVI market. Although these two valves dominate the TAVI market, a number of newer transcatheter valves have been introduced and others are in early clinical evaluation. The new valves are designed to reduce catheter delivery diameter, improve ease of positioning and sealing, and facilitate repositioning or removal. The most recent transcatheter valves for transapical use include Acurate TA (Symetis), Engager (Medtronic), and JenaValve the Portico (St Jude), Sadra Lotus Medical (Boston Scientific), and the Direct Flow Medical. These new inventions may introduce more effective treatment options for high-risk patients with severe aortic stenosis. Improvements in transcatheter valves and the developing variability among them may allow for more tailored approaches with respect to patient's anatomy, while giving operators the opportunity to choose devices they feel more comfortable with. Moreover, introducing new devices to the market will create a competitive environment among producers that will reduce high prices and expand availability. The present review article includes a discussion of recent patents related to Transcatheter Aortic Valves.
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http://dx.doi.org/10.2174/1574890108666131126145250 | DOI Listing |
Catheter Cardiovasc Interv
December 2024
Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China.
Background: Hypoattenuating leaflet thickening (HALT) following transcatheter aortic valve replacement (TAVR) may compromise valve durability, posing a significant barrier to the broader adoption of this technology among younger patients. Self-expanding valves (SEVs) are the most commonly used transcatheter heart valves (THVs) among Chinese patients with aortic stenosis. Understanding the potential mechanisms underlying HALT is, therefore, critical to guide future THV design and development.
View Article and Find Full Text PDFCatheter Cardiovasc Interv
December 2024
Cardiology Department, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
Background: The management of Transcatheter Aortic Valve Implantation (TAVI) patients with a small aortic annulus (SAA) postures a substantial challenge, increasing the risk of patient- prosthesis mismatch (PPM) and overall mortality.
Aims: This study aimed to compare the hemodynamic and clinical outcomes of transcatheter balloon-expandable valve (BEV) versus transcatheter self-expandable valve (SEV) in SAA.
Methods: We conducted propensity score matching (PSM) of severe AS patients with SAA who underwent trans-femoral TAVR and enrolled to the Israeli TAVR registry between the years 2008 and 2023.
Front Cardiovasc Med
December 2024
Oxford Heart Centre, Oxford University Hospitals NHS Trust, Oxford, United Kingdom.
In patients undergoing transcatheter aortic valve implantation (TAVI), multi-valve disease is common and associated with worse outcomes. Despite multiple emerging transcatheter valve treatment options, no guidelines exist for the transcatheter treatment of multi-valve disease. We present a case of a 76-year-old patient with concomitant severe aortic valve stenosis and severe mitral valve stenosis who underwent concurrent TAVI and transcatheter mitral valve replacement.
View Article and Find Full Text PDFARYA Atheroscler
January 2024
Hypertension Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
Background: Secundum Atrial Septal Defects (ASDs) are the most common type of atrial septal defects. Today, using different types of occluders, transcatheter closure is widely used to treat ASD and has replaced the surgical procedure in anatomically suitable patients. This study was performed to evaluate the short-term clinical outcomes of treatment of adult patients requiring an ASD device closure referred to Shahid Chamran Cardiovascular Center in Isfahan, Iran.
View Article and Find Full Text PDFCan J Anaesth
December 2024
Department of Anesthesiology and Critical Care Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.
Purpose: Safe perioperative management of patients undergoing transcatheter aortic valve implantation (TAVI) is crucial. Remimazolam is a newly developed short-acting benzodiazepine. We hypothesized that combining remimazolam and flumazenil would reduce emergence time compared with sevoflurane in patients undergoing general anesthesia for TAVI.
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