PREDICTING perioperative blood loss is traditionally fraught with great difficulties. Medical history is certainly crucial in the risk assessment of perioperative blood loss because it provides information on bleeding history, the use of antiplatelet drugs, and oral anticoagulation. However, so far there is no laboratory parameter that could reliably predict perioperative blood loss. According ...

OBJECTIVE To provide a comprehensive literature review on roles of coagulation factor XIII (FXIII) in coagulation, wound healing, neoplasm, bone metabolism, and pregnancy. DATA SOURCES All articles in PubMed with key words "Coagulation factor XIII", "wound", "leukemia", "tumor", "bone," and "pregnancy" with published date from 2001 to 2016 were included in the study. Frequently cited publicat...

A patient is described who had an inhibitor to coagulation factor XIII associated with serum autoantibodies to certain tissues. The relationship of these abnormal findings to practolol therapy suggests that this was practolol-induced lupus erythematosus. Further investigations delineating the site of action of the inhibitor to factor XIII are reported.

Factor XIII A subunit was detected in U937 cells and human alveolar macrophages by immunohistology and Western blotting. U937 cells synthesize factor XIII A subunit de novo under serum-free, platelet-free conditions, as indicated by 35S-methionine labeling and immunoprecipitation. Thrombin-dependent activity was demonstrated to account for 98% of the total transglutaminase activity in U937 cell...

Factor XIIIa (active fibrin-stabilizing factor) generated in heat-defibrinated plasma by the addition of thrombin can be measured by 14C-putrescine incorporation into casein. Modification of this assay be substituting 3H-putrescine of high specific activity as the donor amine permits measurement of amine incorporation by plasma even in the absence of added thrombin. Incorporation is calcium dep...

Patients with undiagnosed haemostatic defects seen at The Aga Khan Hospital and Fatimid Blood Transfusion Centre during the period of 7 years (1985-1992) were screened with routine tests including bleeding time (BT), whole blood clotting time (CT), platelet count, activated partial thromboplastin time (APTT), prothrombin time (PT) and 5 molar urea test. Nine patients had a positive 5 molar urea...

tables or figures and should relate solely to an article published in Circulation within the preceding 12 weeks. Authors of letters selected for publication will receive prepublication proofs, and authors of the article cited in the letter will be invited to reply. Replies must be signed by all authors listed in the original publication. Please submit three typewritten, double-spaced copies of ...

OBJECTIVE Abnormalities in the coagulation pathway are often included in the diagnostic work-up of stroke patients, especially in young adults with cryptogenic stroke. METHODS Three common genetic variants within the coagulation cascade were investigated in 500 control subjects and in 167 patients with ischemic stroke defined by TOAST subclassification. Analysed variants were factor V Leiden,...

BACKGROUND Fibrinogen concentrate treatment can improve coagulation during massive traumatic bleeding. The aim of this in vitro study was to determine whether fibrinogen concentrate, or a combination of factor XIII and fibrinogen concentrates, could reverse a haemodilution-induced coagulopathy during hypothermia. METHODS Citrated venous blood from 10 healthy volunteers was diluted in vitro by...