Observational (n=22)
Pathologic assessment of explanted balloon-expandable transcatheter aortic valves showed acceptable short-term durability and biocompatibility, with moderate thrombus in 14% and rare calcification.
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Yahagi et al. (2017) conducted an observational in Severe aortic stenosis (n=22). Edwards SAPIEN transcatheter aortic valves was evaluated on Pathologic responses including extent of thrombus, inflammation, neointima, and leaflet degeneration/calcification.
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