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Lupus Anticoagulant Measurement

  • I. J. Mackie
  • S. Donohoe
  • S. J. Machin

Abstract

In 1952, Conley and Hartman described patients with haemorrhagic symptoms, whose plasma prolonged the whole blood clotting time and failed to correct on the addition of normal plasma. Further patients were reported and in 1972 the term “lupus anticoagulant” was coined [1], as the apparent inhibitor of coagulation had been observed in patients with systemic lupus erythematosus (SLE). Unfortunately, the term lupus anticoagulant (LA) is a misnomer, as delayed coagulation is only observed in vitro, and hemorrhage in patients with LA is rare. The phenomenon is not confined to SLE and has been observed in patients with a wide range of disease states as well as asymptomatic, apparently healthy subjects. LA appears to be due to certain acquired immunoglobulins of varying class that interact with prothrombin/ phospholipid and β 2-glycoprotein I/phospholipid complexes in a manner that influences phospholipid-dependent in vitro coagulation tests. There may also be additional target proteins involved.

Keywords

Systemic Lupus Erythematosus Normal Plasma Lupus Anticoagulant Confirmation Step Thromboplastin Reagent 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag London 2000

Authors and Affiliations

  • I. J. Mackie
  • S. Donohoe
  • S. J. Machin

There are no affiliations available

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