Results 41 to 50 of about 3,618 (199)

Benefit of 3D Vena Contracta Area over 2D-Based Echocardiographic Methods in Quantification of Functional Mitral Valve Regurgitation

Diagnostics, 2023
Background: The two-dimensional proximal isovelocity surface area (2D PISA) method in the quantification of an effective regurgitation orifice area (EROA) has limitations in functional mitral valve regurgitation (FMR), particularly in non-circular ...
Vinzenz M. Jungels, Felix M. Heidrich, Christian Pfluecke, Axel Linke, Krunoslav M. Sveric   +4 more
doaj   +1 more source

Atrial Functional Tricuspid Regurgitation

JACC: Advances
Background: Despite increasing clinical recognition of atrial functional tricuspid regurgitation (AF-TR), there remains limited literature regarding the characteristics, outcomes, and adverse prognosticators for this valve lesion.
Agostina M. Fava, MD, Michael Nakhla, MD, Adel Hajj Ali, MD, Emmanuel Akintoye, MD, MPH, Kevser Akyuz, MD, Aro Daniela Arockiam, MD, Elio Haroun, MD, Joseph El Dahdah, MD, Yi-Wen Becky Liao, MBChB, Zoran Popovic, MD, PhD, Marc Gillinov, MD, Gosta Pettersson, MD, PhD, Brian Griffin, MD, Milind Y. Desai, MD, Tom Kai Ming Wang, MBChB, MD   +14 more
doaj   +1 more source

Primary cardiac T‐cell rich large B‐cell lymphoma causing aortic stenosis with metastasis in a Warmblood

Equine Veterinary Education, EarlyView.
Summary An 18‐year‐old Warmblood mare was presented to the Royal Veterinary College Equine Referral Hospital for investigation of progressive periocular and facial swelling, weight loss and tachycardia. Physical examination additionally identified bilateral pansystolic (grade 5/6 basilar left‐sided, 2/6 right‐sided), cardiac murmurs, submandibular ...
S. E. Talbot, F. Z. X. Lean, H. M. Martineau, B. Dunkel, J. Reed   +4 more
wiley   +1 more source

Automated flow rate calculation based on digital analysis of flow convergence proximal to regurgitant orifice

, 1993
Objectives. The purpose of the study was to develop and validate an automated method for calculating regurgitant flow rate using color Doppler echocardiography.Background.
David H. Thoreau, J.Miguel Rivera, Arthur E. Weyman, Pieter M. Vandervoort, Rivera, J.Miguel, Vandervoort, Pieter M., Thomas, James D., Weyman, Arthur E., Robert A. Levine, Levine, Robert A., James D. Thomas, Thoreau, David H.   +11 more
core   +1 more source

Association between the proportionality of functional mitral regurgitation and survival after mitral valve operationCentral MessagePerspective

JTCVS Open
Objective: The concept of proportionate and disproportionate functional mitral regurgitation suggests that transcatheter edge-to-edge mitral repair may benefit patients with a smaller left ventricle relative to a higher regurgitant burden.
Makoto Mori, MD, PhD, Christina Waldron, BS, Sigurdur Ragnarsson, MD, Soh Hosoba, MD, PhD, Mina Zaky, MD, Dustin Lieu, MD, Markus Krane, MD, Arnar Geirsson, MD   +7 more
doaj   +1 more source

The Conundrum of Tricuspid Regurgitation Grading

Frontiers in Cardiovascular Medicine, 2018
Findings from early percutaneous tricuspid intervention trials have shown that the severity of tricuspid regurgitation (TR) far exceeded the current definition of severe TR.
Yun Yun Go, Raluca Dulgheru, Raluca Dulgheru, Patrizio Lancellotti, Patrizio Lancellotti, Patrizio Lancellotti   +5 more
doaj   +1 more source

795–2 Dynamic Changes in Aortic Regurgitant Orifice Area: A Chronic Animal Model Study

, 1995
Our aim was to determine dynamic changes in aortic regurgitant (AR) orifice size using calibrated electromagnetic flow meters (EM) and color Doppler (CD) flow convergence (FC) methods.
Ajit P. Yoganathan, Takahiro Shiota, Shuping Ge, Michael Jones, Jones, Michael, Sinclair, Brian, Sahn, David J., Brian Sinclair, Ge, Shuping, Ishii, Masahiro, Heinrich, Russell S., Russell S. Heinrich, Masahiro Ishii, Shiota, Takahiro, Yamada, Izumi, Yoganathan, Ajit P., David J. Sahn, Izumi Yamada   +17 more
core   +1 more source

The Comparison of Different Constitutive Laws and Fiber Architectures for the Aortic Valve on Fluid–Structure Interaction Simulation

Frontiers in Physiology, 2021
Built on the hybrid immersed boundary/finite element (IB/FE) method, fluid–structure interaction (FSI) simulations of aortic valve (AV) dynamics are performed with three different constitutive laws and two different fiber architectures for the AV ...
Li Cai, Li Cai, Ruihang Zhang, Yiqiang Li, Guangyu Zhu, Xingshuang Ma, Yongheng Wang, Xiaoyu Luo, Hao Gao   +8 more
doaj   +1 more source

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

Advanced Functional Materials, Volume 36, Issue 39, 14 May 2026.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco, Pierfrancesco Gaziano, Serena Anglese, Simone Morganti, Carlo de Vincentiis, Ferdinando Auricchio, Michele Marino, Michele Conti   +7 more
wiley   +1 more source

Datasheet1_Comparison of effective regurgitant orifice area by the PISA method and tricuspid coaptation gap measurement to identify very severe tricuspid regurgitation and stratify mortality risk.pdf

, 2023
IntroductionVarious definitions of very severe (VS) tricuspid regurgitation (TR) have been proposed based on the effective regurgitant orifice area (EROA) or tricuspid coaptation gap (TCG). Because of the inherent limitations associated with the EROA, we
Augustin Coisne (10860039), Erwan Donal (462326), Julien Dreyfus (10860000), Christophe Tribouilloy (4068448), Léa Tordjman (15364456), Léa Tordjman, Yohann Bohbot (10860003), Benjamin Elegamandji, Samy Aghezzaf, Erwan Donal, Guillaume L’official, Yoan Lavie-Badie (11771762), Benjamin Elegamandji (15364459), Pierre Yves Turgeon, David Messika Zeitoun, Thierry Le Tourneau (9407881), Antoine Fraix (15210598), Guillaume L’official (15364462), Yoan Lavie-Badie, Christine Selton-Suty (3155019), Pierre Yves Turgeon (15364465), Maurice Enriquez-Sarano (10172019), David Messika Zeitoun (15364468), Samy Aghezzaf (13540630), Julien Dreyfus, Yohann Bohbot, Maurice Enriquez-Sarano, Thierry Le Tourneau, Christine Selton-Suty, Antoine Fraix, Augustin Coisne, Christophe Tribouilloy   +31 more
core   +1 more source