Management Of Antiplatelet Therapy In Acute Coronary Syndrome Patients With Thrombocytopenia

Dual antiplatelet therapy (DAPT) consisting of aspirin and clopidogrel is essential in the treatment of acute coronary syndrome (ACS). Immune thrombocytopenic purpura (ITP) patients - and especially those receiving thrombopoietin analog (TPO) treatment - deserve special attention. In ACS patients with platelet counts between 50 G/L and 100 G/L and no bleeding symptoms, DAPT is indicated for 1 month after the placement of new generation drug eluting stents (the length of treatment is 1 year in the case of patients with average bleeding risk) followed by clopidogrel monotherapy. In patients with average bleeding risk, DAPT is recommended for 1 year after the ACS. Our aim was to investigate the incidence and outcome of ACS in ITP patients, who were treated in our clinic between 1st January 2015 and 1st October 2020. Out of 168 patients treated for ITP, 3 patients suffered from ACS in the last 5 years. These patients received TPO treatment (2 patients subcutan romiplostim, 1 patient oral eltrombopag). None of these ITP patients treated with DAPT and with TPO analog suffered from bleeding complications. 1 patient developed ACS three times within the last 5 years (he received bare-metal stent once and drug-eluting stent twice).Drug-eluting stent was placed once in the third, and twice (with 1 year difference) in the second patient. Acute and long-term medication of patients suffering from both ITP and ACS is a challenging task and needs individual evalu-ation. Establishment of treatment guidelines for this special group is warranted.