4Ts scoring with hemofiltration or hemodialysis clotting

Excerpt

In this issue of Journal of Clinical Monitoring and Computing, Perbet et al. [1] report 2 intensive care unit (ICU) patients with hemofiltration filter clotting associated with heparin-induced thrombocytopenia (HIT), an immune-mediated prothrombotic adverse drug reaction [2, 3]. In both patients, early (within 6 h) hemofilter thrombosis occurred at a time when the patients were not thrombocytopenic. The authors propose that hemofilter clotting should be considered a thrombotic event in the 4Ts scoring system (discussed subsequently), even in the absence of thrombocytopenia. The authors specifically suggest [1] that rapid hemofiltration clotting should score as 2 points for the category, Thrombosis, in this scoring system. …