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You are here: Contents > 2013 > Volume 22 Number 5 September 2013 > MISCELLANEOUS > Resistance to Secondary Thrombosis of the On-X Mitral Prosthesis

Resistance to Secondary Thrombosis of the On-X Mitral Prosthesis

Federica Jiritano, Giuseppe F. Serraino, Michele Rossi, Giuseppe Pisano, Attilio Renzulli

Cardiac Surgery Unit, Magna Graecia University of Catanzaro, Italy

A 60-year-old man underwent aortic and mitral valve replacement with mechanical On-X prostheses, plus tricuspid annuloplasty ring and maze radiofrequency ablation. Two years later, he was admitted to hospital with severe orthopnea and hemolysis. Echocardiography revealed a blocked prosthetic mitral leaflet due to interference of the preserved subvalvular apparatus. Intraoperatively, one

leaflet was found to be blocked by the native mitral apparatus, but no thrombus and/or pannus was present. Although, despite an abnormal blood flow, the On-X prosthesis is resistant to secondary thrombosis, even under adverse hemodynamic conditions, interference of the valve with cardiac structures remains a possibility.

The Journal of Heart Valve Disease 2013;22:740-742

Resistance to Secondary Thrombosis of the On-X Mitral Prosthesis

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