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[beta-Thromboglobulin in plasma in patients with heart-valve diseases and with prosthetic heart valves (author's transl)].

In each 50 patients with rheumatic heart valve diseases and after implantation of prosthetic heart valves and in 20 patients with bioprostheses, beta-thromboglobulin (beta-TG) in plasma was determined. In all cases beta-TG was significantly elevated above the normal range. The levels of beta-TG lay in patients with bioprostheses lower than in the other groups. Bioprostheses are less damaging the thrombocytes than prosthetic heart valves.