ReviewFrontiers in cardiovascular medicine2026
Bioprosthetic heart valve degeneration: new insights into structural remodeling and calcification.
Review in Frontiers in cardiovascular medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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5 authors.
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Abstract
Bioprosthetic heart valves (BHVs) are widely used to treat aortic valve disease, and their demand is rising. However, BHV lifespan remains limited by degeneration, with patients often requiring surgical or transcatheter reintervention within a decade. BHVs lack intrinsic remodeling capabilities, and the mechanisms contributing to their failure remain poorly understood. In this review, we summarize current knowledge of BHV degeneration by integrating findings from native aortic valve disease with studies of explanted bioprosthetic valves. We discuss the structural hallmarks of degeneration, including collagen remodeling, calcification, and inflammatory cell accumulation, and examine evidence that circulating blood-derived factors infiltrate BHV tissue and contribute to degeneration progression. Particular emphasis is placed on macrophages, which are consistently identified in explanted BHVs and may promote extracellular matrix (ECM) degradation. We also highlight extracellular vesicles (EVs) as potential mediators of cardiovascular calcification and propose that macrophage-derived EVs may promote ECM remodeling beyond sites of direct cellular accumulation. In addition, we review experimental approaches, including histological imaging,
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