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Blood Adv ; 6(2): 495-502, 2022 01 25.
Artículo en Inglés | MEDLINE | ID: mdl-34788405

RESUMEN

Idiopathic purpura fulminans (IPF) is a rare but severe prothrombotic coagulation disorder that can occur after chickenpox or human herpesvirus 6 (HHV-6) infection. IPF leads to an autoantibody-mediated decrease in the plasma concentration of protein S. We conducted a retrospective multicenter study involving patients with IPF from 13 French pediatric centers and a systematic review of cases in published literature. Eighteen patients were included in our case series, and 34 patients were included as literature review cases. The median age was 4.9 years, and the diagnostic delay after the first signs of viral infection was 7 days. The lower limbs were involved in 49 patients (94%) with typical lesions. In all, 41 patients (78%) had a recent history of varicella-zoster virus infection, and 7 patients (14%) had been infected by HHV-6. Most of the patients received heparin (n = 51; 98%) and fresh frozen plasma transfusions (n = 41; 79%); other treatment options were immunoglobulin infusion, platelet transfusion, corticosteroid therapy, plasmapheresis, and coagulation regulator concentrate infusion. The antithrombin level and platelet count at diagnosis seemed to be associated with severe complications. Given the rarity of this disease, the creation of a prospective international registry is required to consolidate these findings.


Asunto(s)
Varicela , Púrpura Fulminante , Varicela/complicaciones , Niño , Preescolar , Diagnóstico Tardío/efectos adversos , Humanos , Estudios Multicéntricos como Asunto , Estudios Prospectivos , Proteína S , Púrpura Fulminante/diagnóstico , Púrpura Fulminante/etiología , Púrpura Fulminante/terapia , Estudios Retrospectivos
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