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Updated: Oct 2, 2025

Catheter-based Endovascular Angioplasty for Fibrosing Mediastinitis-associated Pulmonary Vein Stenosis
Published on: August 26, 2025
Bioprosthetic mitral valve stenosis secondary to hypereosinophilic syndrome
Xin Quan1, Yunhu Song2, Hongyue Wang3
1Department of Echocardiography, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science, Peking Union Medical College, Beijing, China.
Abstract:
Herein we present a case of hypereosinophilic syndrome (HES) with recurrent involvement of mitral valve. The patient developed mitral regurgitation secondary to HES. Surgical mitral valve replacement was performed successfully. The prosthetic valve dysfunction occurred 3 years later and echocardiography showed severe mitral valve stenosis. Extensive mural thrombi were discovered on both sides of the stenotic valve with eosinophilic infiltration. The patient underwent a repeated mechanical prosthesis replacement and recovered uneventfully.
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