A 48-year-old woman presented with heart failure and bioprosthetic pulmonary valve regurgitation 2 years after pulmonary valve replacement. Intracardiac echocardiography demonstrated uniform thickening of a single prosthetic valve leaflet suggesting leaflet thrombosis rather than bioprosthetic valve degeneration. After 3 months of anticoagulation, valve regurgitation and symptoms improved. ().

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8302786PMC
http://dx.doi.org/10.1016/j.jaccas.2021.02.025DOI Listing

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