The calibrated automated thrombogram (CAT): a universal routine test for hyper- and hypocoagulability

Pathophysiol Haemost Thromb. 2002 Sep-Dec;32(5-6):249-53. doi: 10.1159/000073575.


By using a "slow" fluorogenic thrombin substrate and continuous comparison to a simultaneously run calibrator, thrombin generation can be monitored automatically, on line, in clotting PPP or PRP at a throughput of up to 100 samples per hour. The resulting "Thrombogram" in PPP measures hypocoagulability (haemophilias, oral anticoagulants, heparins (-likes), direct inhibitors) and hypercoagulabilities (AT deficiency, prothrombin hyperexpression, prot. C and S deficiency, factor V Leiden, oral contraceptives). In PRP it is diminished in thrombopathies, in von Willebrand disease, by antibodies blocking GPIIb-IIIa or GPIb, or by antiplatelet drugs like aspirin and clopidogrel. Lupus anticoagulant both retards and increases thrombin generation. The thrombogram thus appears to be a broad function test of the haemostatic-thrombotic mechanism of the blood.

Publication types

  • Review

MeSH terms

  • Blood Coagulation Disorders / diagnosis*
  • Blood Coagulation Tests / methods*
  • Humans
  • Thrombin / analysis*


  • Thrombin