Clinical features of 27 cases with interferon alpha- induced severe thrombocytopenia.
Shijie Huaren Xiaohua Zazhi 2009;
17:1147-1151. [DOI:
10.11569/wcjd.v17.i11.1147]
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Abstract
AIM: To analyze clinical features of interferon alpha-induced severe thrombocytopenia.
METHODS: Twenty six cases with interferon alpha-induced severe thrombocytopenic purpu-ra were collected from Medline and CNKI and another case from our clinical practice, and all cases were classified into two groups: immune thrombocytopenic purpura group and throm-botic thrombocytopenic purpura group accord-ing to their mechanism. Clinical manifestations, results of laboratory examinations, treatment and prognosis of different groups were observed and analyzed.
RESULTS: Twenty four cases of ITP presented hemorrhagic tendency, severe thrombocytope-nia, elevated antiplatelet antibody or platelet related IgG, megacaryocyte hyperplasia. The platelet counts increased after discontinuation of IFNα and treatment with immune suppression agents for 1 or 2 weeks and the prognosis of ITP was good. Three cases of TTP presented fever, decreased platelet count, hemolytic anemia, neu-ropsychological symptoms and renal disorder. Plasma transfusion was the main therapy with poor prognosis and high mortality. ITP and TTP usually occurred in the process of anti- HCV treatment of IFNα.
CONCLUSION: Two kinds of IFNα-induced se-vere thrombocytopenia could occur during the process of anti-virus. Physicians should recog-nize and treat them in time correctly.
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