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Acute thrombotic obstruction of mitral valve prosthesis: low protein C level
Toshihiro Ohata1, Tetsuo Sakakibara, Hiroshi Takano
1Department of Cardiovascular Surgery, Osaka Police Hospital, Osaka, Japan. tohata@aol.com
Asian Cardiovascular & Thoracic Annals
|June 25, 2002
Abstract:
A 51-year-old female underwent redo mitral valve replacement with a pericardial bioprosthesis because of acute thrombotic obstruction of a mechanical valve, in spite of adequate anticoagulation with warfarin. Her protein C level was 24% of the normal value and protein S was reduced to 54% of normal.