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

The 4T score calculator checks for signs typical of heparin-induced thrombocytopenia (HIT) and the probability of its diagnosis. 💉 We won't be just calculating; we'll also talk about the elements of 4T , HIT criteria , as well as platelet nadir and other definitions useful in …

目前临床上先使用4t评分系统评价患者患hit的可能性，如果高度或重度怀疑hit，则应行相应实验室检查来确诊或排除hit；如果只是低度怀疑，是否需要行实验室检查来明确或除外诊断尚无定论。

heparin-induced thrombocytopenia (HIT) [1,2]. Given the ubiquity of heparin use, HIT is one of the most common immune-mediated adverse drug reactions, with frequencies as high as 2–3% for certain groups of postoperative patients and 0.5–1% for general medical patients receiving unfractionated heparin (UFH) for a week or more [3–5].

2024年1月31日 · 为更好地规范肝素诱导的血小板减少症(heparin Induced thrombocytopenia，HIT)患者的诊断和治疗，中国医师协会心血管内科医师分会血栓防治专业委员组织国内专家，成立《肝素诱导的血小板减少症中国专家共识》(2017…

2022年11月15日 · The 4T score is comprised of the following criteria for HIT diagnosis: Timing of platelet count decrease, Thrombosis, Thrombocytopenia, and absence of other causes of Thrombocytopenia.

The pretest clinical scoring system, the ‘4 T’s’ provides high-negative predictive value in assessing patients with suspected HIT when a low score is obtained. Beforehand following data is to be collected ie

The '4T' scoring system is widely used to predict the risk that an individual with Thrombocytopenia may have HIT. The 4Ts in the 4T score are: - Thrombocytopaenia - Timing - Thrombosis - Other causes of Thrombocytopaenia are not evident.

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.

4-5 points, moderate suspicion: 0.6% probability of HIT diagnosis if antibody negative, 58.2% if antibody positive; 6-8 points, high suspicion: 16% probability of HIT diagnosis if antibody negative, 98% if antibody positive. The HIT 4Ts scoring system has a high negative predictive value.