Incident TTP: Plasmapheresis Therapy-Related Complications Are Common (original) (raw)

Blood, 2005

Abstract

Background: Plasmapheresis is the mainstay of therapy for thrombotic thrombocytopenic purpura (TTP). Due to the significant mortality associated with TTP if left untreated and the effectiveness of therapy, plasmapheresis may be instituted before the diagnosis is clearly established. Our case-control study of incident TTP allowed us to evaluate the incidence of complications in cases treated at multiple sites across the United States. Methods: The SERF-TTP study is a NHLBI-funded 15-site study to identify 300 cases of incident TTP and 600 age and gender-matched community controls. Each case of incident TTP is identified upon referral for therapeutic plasma exchange (TPE). Exclusion criteria include solid organ or allogeneic stem cell transplant, anti-neoplastic therapy, or metastatic adenocarcinoma. Epidemiologic information, laboratory data, and plasma samples are collected from both patients and controls. In addition, information is collected about volume of TPE, frequency, type of...

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