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  • Title: Protein C deficiency in two Austrian families.
    Author: Pabinger-Fasching I, Bertina RM, Lechner K, Niessner H, Korninger C.
    Journal: Thromb Haemost; 1983 Dec 30; 50(4):810-3. PubMed ID: 6665761.
    Abstract:
    Protein C antigen was determined by Laurell rocket immunoelectrophoresis in 225 patients with a history of venous thrombosis. Among these patients two females with protein C deficiency were detected. Additional studies in the families of the protein C deficient patients revealed further 7 family members with protein C deficiency. In 8 not anticoagulated patients with protein C deficiency the protein C ranged from 36 to 62% (median: 45%). In one patient on oral anticoagulant treatment protein C antigen concentration was less than 10%, F II and FX were 65 and 50%, respectively. The pattern of inheritance was consistent with autosomal dominant inheritance. 5 of the 9 protein C deficient patients had severe thrombotic tendency characterized by recurrent deep venous thrombosis (n = 4), pulmonary embolism (n = 1), probable mesenteric vein thrombosis (n = 1) and superficial thrombophlebitis (n = 2). All protein C deficient patients without thrombosis were less than 17 years old.
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