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Thrombocytopenia induced by clopidogrel: a rare adverse effect
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Introduction: Immune thrombocytopenic purpura (ITP) can be induced by several drugs but there are few case reports of ITP induced by clopidogrel. Second-line treatment with thrombopoietin receptor agonists (TPO-RA) presents solid evidence and should be considered in patients in need of elective surgery who are poor responders to steroids.
Case description: We report the case of a 79-year-old male who developed severe immune thrombocytopenic purpura after initiating treatment with clopidogrel. Because he needed elective orthopaedic surgery and he did not respond to corticotherapy and immunoglobulin, second-line treatment with romiplostim was initiated with a significant increase in platelet count.
Discussion and conclusion: Clopidogrel can induce ITP and this diagnosis should be considered in patients who present with isolated thrombocytopenia. First-line therapy of ITP is not always successful; second-line treatment with TPO-RA has a high response rate and should be considered in patients in need of elective surgery who have failed to respond to first-line therapy.
Learning points: Clopidogrel can cause immune thrombocytopenic purpura (ITP); although there are some published cases in literature, it is a rare adverse effect.ITP induced by clopidogrel should be considered in the differential diagnosis of patients experiencing isolated thrombocytopenia.Second-line treatment of ITP with thrombopoietin receptor agonists (TPO-RA) presents solid evidence and should be considered in patients in need of elective surgery who are poor responders to steroids.
Descrição
Palavras-chave
Thrombocitopenia Clopidogrel Thrombocytopenia
Contexto Educativo
Citação
Eur J Case Rep Intern Med . 2023 Oct 5;10(11):004