The 4Ts Score is a clinical scoring system to differentiate patients with HIT from those with other causes of thrombocytopenia.

In patients with acute HIT without clinically apparent thrombosis, the ASH guideline panel suggests bilateral lower extremity compression ultrasonography to screen for asymptomatic proximal DVT .

2022年8月12日 · Heparin-induced thrombocytopenia (HIT) is a serious complication of taking the blood thinner heparin. With HIT, your immune system causes your platelets to clot in the presence of heparin, resulting in your platelet levels dropping. Without treatment, the clotting puts you at risk of developing life-threatening blood clots.

The 4Ts is a pretest clinical scoring system for heparin-induced thrombocytopenia (HIT). Although widely used in clinical practice, its predictive value for HIT in diverse settings and patient populations is unknown.

2014年8月25日 · An earlier post discussed how to bridge argatroban to warfarin in patients with HIT but didn't cover how to determine the likelihood of HIT when it is suspected. This post will cover the 4 T's that are used to quantify this probability and guide clinical decision-making.

2022年5月26日 · Heparin-induced thrombocytopenia (HIT) is an adverse drug reaction to heparin that places patients at increased risk for venous or arterial thrombosis. HIT is generally suspected at the bedside when there is a characteristic 50% drop in platelet count following 5-10 days of heparin exposure, but other causes of thrombocytopenia must be considered.

2024年7月30日 · Not all patients who have heparin antibodies develop platelet activation and clinically relevant HIT at most 5% to 30%, of patients who form HIT-IgG will develop clinical HIT

2024年5月14日 · Heparin-Induced Thrombocytopaenia [HIT] is a life-threatening complication of heparin therapy. Two pre-test clinical probability scoring algorithms have been developed to aid with the initial investigation of a suspected case of HIT.

2006年6月4日 · Continuing our theme of Heparin-Induced Thrombocytopenia (HIT) from yesterday, lets talk today about "4 Ts" of HIT. Thrombosis or other sequelae - Proven thrombosis, skin necrosis, or, after heparin bolus, acute systemic reaction. Other cause for thrombocytopenia - …

4Ts Score System assessment for Heparin-Induced Thrombocytopenia is an alternative evaluation tool prior to time-consuming antibody testing for HIT or empiric substitution of heparin for another anti-coagulant. Download result as PDF file. Consider using the 4Ts scoring system 4Ts Score for Heparin-Induced Thrombocytopenia for: