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Involvement of TGF-β, mTOR, and inflammatory mediators in aging alterations during myxomatous mitral valve disease in a canine model.
Geroscience
January 2025
Department for Basic and Preclinical Sciences, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Torun, 87-100, Torun, Poland.
Inflammaging, a state of chronic low-grade inflammation associated with aging, has been linked to the development and progression of various disorders. Cellular senescence, a state of irreversible growth arrest, is another characteristic of aging that contributes to the pathogenesis of cardiovascular pathology. Senescent cells accumulate in tissues over time and secrete many inflammatory mediators, further exacerbating the inflammatory environment.
View Article and Find Full Text PDFComputational modeling of cardiac hemodynamics including chordae tendineae, papillaries, and valves dynamics.
Comput Biol Med
January 2025
LaBS, Dipartimento di Chimica, Materiali e Ingegneria Chimica "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, Milan, 20133, Italy. Electronic address:
In the context of dynamic image-based computational fluid dynamics (DIB-CFD) modeling of cardiac system, the role of sub-valvular apparatus (chordae tendineae and papillary muscles) and the effects of different mitral valve (MV) opening/closure dynamics, have not been systemically determined. To provide a partial filling of this gap, in this study we performed DIB-CFD numerical experiments in the left ventricle, left atrium and aortic root, with the aim of highlighting the influence on the numerical results of two specific modeling scenarios: (i) the presence of the sub-valvular apparatus, consisting of chordae tendineae and papillary muscles; (ii) different MV dynamics models accounting for different use of leaflet reconstruction from imaging. This is performed for one healthy subject and one patient with mitral valve regurgitation.
View Article and Find Full Text PDFTranscatheter management of residual mitral regurgitation after transcatheter edge-to-edge repair: a systematic review.
Cardiovasc Interv Ther
January 2025
Heart Valve Center, IRCCS San Raffaele, Milan, Italy.
Background: Treatment of residual mitral regurgitation (MR) with different percutaneous devices after transcatheter edge-to-edge repair (TEER) has been reported as an alternative option to reclipping or surgery. This review aims at describing the different transcatheter strategies available and their results when managing residual MR after TEER.
Methods: A literature search was undertaken across Pubmed, ScienceDirect, SciELO, DOAJ, and Cochrane library databases, to identify article reporting patients with post-TEER residual MR managed by a transcatheter approach that did not involve only the implantation of new clips.
Cardiac papillary fibroelastoma involving the mitral valve: A case report.
Medicine (Baltimore)
January 2025
Ultrasound Medical Center, Second Hospital of Lanzhou University, Lanzhou, China.
Rationale: Cardiac papillary fibroelastoma (CPF) is a rare cardiac tumor that can lead to severe and potentially fatal complications such as stroke, myocardial infarction, and sudden cardiac death. The rarity of CPF makes it challenging for clinicians to diagnose and treat, highlighting the importance of timely and accurate diagnosis to prevent catastrophic outcomes. This case report aims to contribute to the clinical understanding of CPF involving the mitral valve (MV), providing insights into diagnosis and treatment strategies.
View Article and Find Full Text PDFOutcomes of a transapical edge-to-edge repair system in secondary mitral regurgitation.
J Invasive Cardiol
January 2025
Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, China; State Key Laboratory of Cardiovascular Diseases, Zhongshan Hospital, Fudan University; NHC Key Laboratory of Ischemic Heart Diseases; Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences; National Clinical Research Center for Interventional Medicine, Shanghai, China.
Objectives: The ValveClamp system (Hanyu Medical Technology) is a novel transcatheter edge-to-edge repair (TEER) system designed for ease of operation; however, there is a lack of data on its application in secondary mitral regurgitation (SMR). The authors report the mid-term outcomes of TEER using the ValveClamp system in SMR.
Methods: The study prospectively analyzed consecutive severe SMR patients who underwent transapical ValveClamp implantation at 10 Chinese centers.
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