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Refined Approach to the Treatment of Caseous Calcification of the Mitral Annulus: A Case Report.
Cureus
December 2024
Cardiothoracic Surgery, Palmetto General Hospital, Hialeah, USA.
Caseous calcification of the mitral annulus (CCMA) is a rare variant of mitral annular calcification (MAC), in which the core of the calcification undergoes a caseous transformation. CCMA can cause dysfunction of the mitral valve or embolization of caseous material, requiring surgery. There is currently no clear consensus on the optimal treatment strategy for CCMA.
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 PDFDifferentiating Apical and Basal Left Ventricular Aneurysms Using Sphericity Index: A Clinical Study.
Medicina (Kaunas)
January 2025
Cardiovascular Institute ''Dedinje'', 11040 Belgrade, Serbia.
: Left ventricular aneurysm (LVA) causes geometric changes, including reduced systolic function and a more spherical shape, which is quantified by the sphericity index (SI), the ratio of the short to long axis in the apical four-chamber view. This study aimed to assess SI's value in A-LVA and B-LVA, identify influencing factors, and evaluate its clinical relevance. : This clinical study included 54 patients with post-infarction LVA and used echocardiography to determine LVA locations (A-LVA near the apex and B-LVA in the basal segments), with SI and other echocardiographic measures assessed in both systole and diastole for the entire cohort and stratified by A-LVA and B-LVA groups.
View Article and Find Full Text PDFA multi-modal computational fluid dynamics model of left atrial fibrillation haemodynamics validated with 4D flow MRI.
Biomech Model Mechanobiol
January 2025
Laboratoire d'Imagerie Biomédicale (LIB), Institut National de La Recherche Médicale (INSERM), Centre National de La Recherche Scientifique (CNRS), Sorbonne Université, Paris, France.
Atrial fibrillation (AF) is characterized by rapid and irregular contraction of the left atrium (LA). Impacting LA haemodynamics, this increases the risk of thrombi development and stroke. Flow conditions preceding stroke in these patients are not well defined, partly due the limited resolution of 4D flow magnetic resonance imaging (MRI).
View Article and Find Full Text PDFHemangioma of the Mitral Valve and Aortomitral Curtain in an Adolescent.
JACC Case Rep
December 2024
Department of Cardiovascular Surgery, The Mount Sinai Hospital, New York, New York, USA.
A hemangioma of the mitral valve and aortomitral curtain was incidentally discovered in an adolescent. The lesion was surgically excised, and the mitral valve was reconstructed with complete preservation of valvular function. Pertinent principles of multimodality imaging-based diagnosis and nuances of operative management of this rare, vascular tumor are discussed.
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