A 75-year-old man with severe aortic stenosis, severe chronic obstructive pulmonary disease, NYHA class III heart failure and a large abdominal aortic aneurysm underwent concurrent transfemoral transcatheter aortic valve replacement (TF-TAVR) and endovascular aneurysm repair (EVAR). An Edwards Sapien device was implanted with resolution of hemodynamics. EVAR was performed using an Endurant bifurcated stent graft system. We describe the procedure technique, periprocedural management and one year outcome. To the authors' best knowledge, this is the first case of simultaneous TF-TAVR and EVAR published in North America.
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http://dx.doi.org/10.1016/j.carrev.2014.12.001 | DOI Listing |
Am J Physiol Heart Circ Physiol
January 2025
Weatherhead P.E.T. Imaging Center, McGovern Medical School at UTHealth, Houston, Texas, USA.
An increasing number of procedures over the past two decades for aortic stenosis (AS) reflects the combination of an aging population and less invasive transcatheter options. As a result, the hemodynamics of the aortic valve (AV) have gained renewed interest to understand its behavior and to optimize patient selection. We studied the hemodynamic relationship between pressure loss (ΔP) and transvalvular flow (Q) of the normal AV as well as the impact of a variable supravalvular stenosis.
View Article and Find Full Text PDFInt J Cardiol Heart Vasc
February 2025
Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.
Aim: This study was performed to evaluate the association between left atrial (LA) stiffness and outcomes in patients undergoing transcatheter aortic valve implantation (TAVI).
Methods And Results: This study involved 279 patients with aortic stenosis (AS) who underwent TAVI at Kumamoto University Hospital between 2015 and 2023. During a median follow-up of 468 days (interquartile range: 258-825 days), 42 deaths occurred.
Medicine (Baltimore)
November 2024
Department of Cardiovascular Surgery, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi Province, China.
Background: Transcatheter closure of percutaneous paravalvular leak (PVL) is a technically challenging procedure, especially after surgical mechanical valve replacements (SMVR), as the risk of interference with the prosthetic valve discs and the complex interventional techniques required for mitral PVL closure. Our study was designed to review the results with transcatheter closure of PVL after SMVR.
Methods: From January 2018 through December 2023, a total of 64 patients with PVL after SMVR underwent transcatheter closure with the help of preoperative 3-dimensional printing model and simulator for image evaluation.
Comput Biol Med
January 2025
UCL Mechanical Engineering, University College London, UK; Ri.MED Foundation, Palermo, Italy; University of Palermo, Department of Engineering, Palermo, Italy. Electronic address:
Aortic valve replacements, both surgical and transcatheter, are nowadays widely employed treatments. Although clinically effective, these procedures are correlated with potentially severe clinical complications which can be associated with the non-physiological haemodynamics that they establish. In this work, the fluid dynamics changes produced by surgical and transcatheter aortic valve replacements are analysed and compared with an ideal healthy native valve configuration, employing advanced fluid-structure interaction (FSI) simulations.
View Article and Find Full Text PDFJ Soc Cardiovasc Angiogr Interv
December 2024
Cardiovascular Institute, Detroit Medical Center, DMC Heart Hospital, Detroit, Michigan.
Transcatheter aortic valve repair (TAVR) presents a minimally invasive alternative to traditional surgical valve replacement, albeit not without its own set of complications. A rare complication is the infolding of the self-expanding valve, which can precipitate cardiac arrest. The estimated incidence rate of this complication stands at 1.
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