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Annuloplasty should always accompany mitral valve repair in order to achieve proper annular remodeling and stabilization. Numerous types of annuloplasty rings-that differ from rigid to semi-rigid and flexible devices, from complete to partial, and from flat to saddle-shaped rings-are clinically available. A deeper understanding of mitral valve function, in conjunction with several recent studies, suggest it is advisable to prefer annuloplasty rings that mimic the physiological mitral annulus shape and three-dimensional (3D) dynamic changes in order to reduce haemodynamic stress on valve components and optimize leaflet coaptation, perhaps improving valve repair durability too. This paper aims to focus on 3D annuloplasty rings, with dynamic features: MEMO 3D™ and MEMO 4D™ (Sorin Medical, New York, New York), as well as Physio Flex (Edwards Lifesciences, Irvine, California).
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http://dx.doi.org/10.52198/24.STI.44.CV1795 | DOI Listing |
Egypt Heart J
September 2025
Department of Cardiology, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, King Abdullah International Medical Research Center, Jeddah, Saudi Arabia.
Background: Long-term outcomes of transcatheter mitral valve edge-to-edge repair (TEER) are compared with medical therapy remain under investigation. This study evaluated the 3-year effects of MitraClip on mitral regurgitation (MR) severity, ventricular remodeling, and clinical outcomes in high surgical-risk patients.
Methods: A single-center retrospective cohort included 31 MitraClip patients (2016-2023) and 30 contemporaneous controls on maximally tolerated guideline-directed medical therapy.
Clin Res Cardiol
September 2025
AGEL Hospital Trinec-Podlesi, Konska 453, Trinec, 739 61, Czech Republic.
Background: Pulmonary hypertension (PH) often coexists in patients undergoing transcatheter edge-to-edge mitral valve repair procedure (M-TEER). Its pre-procedural severity is considered a negative prognostic marker. Whether the post-procedural PH resulting from M-TEER can also serve as a long-term prognostic marker is unknown.
View Article and Find Full Text PDFJACC Cardiovasc Imaging
September 2025
Department of Cardiology, Ziekenhuis Oost-Limburg, Genk, Belgium; Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium. Electronic address:
Background: Atrial functional mitral regurgitation (AFMR) is prevalent among patients with heart failure with preserved ejection fraction (HFpEF) and associated with adverse outcome, yet this bidirectional association remains underexplored.
Objectives: The purpose of this study was to elucidate the pathophysiological and prognostic significance of AFMR in HFpEF, both at rest and during exercise.
Methods: In this multicenter cohort study, consecutive patients with HFpEF underwent cardiopulmonary exercise testing with echocardiography, with a particular focus on mitral regurgitation (MR) severity assessment in rest and during exercise.
JTCVS Open
August 2025
Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
Objective: To compare the clinical outcomes of double-valve replacement (DVR) using bovine pericardial and porcine bioprostheses, using a nationwide administrative claims database.
Methods: Adult patients (age ≥40 years) who underwent bioprosthetic DVR between 2003 and 2018 were identified from the Korean National Health Insurance Service database. The outcomes of interest were all-cause mortality, cardiac mortality, and valve-related events, including the incidences of reoperation, endocarditis, systemic thromboembolism, and major bleeding.
JTCVS Open
August 2025
The State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China.
Objectives: Left ventricular vortex dynamics play a crucial role in cardiac function but are significantly altered by mitral valve diseases or surgical interventions. Such hemodynamic changes may lead to maladaptive intracardiac vortices, potentially triggering pathways associated with progressive left ventricular remodeling and thrombosis. This study assessed left ventricular hemodynamics under both physiological and pathological conditions using a biohybrid in vitro platform, aiming to analyze the impact of these conditions on cardiac function.
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