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Successful Treatment of Thrombotic Thrombocytopenic Purpura in a Patient with Mixed Connective Tissue Disease by Min-Young Lee, Woo-In Lee, So-Young Kang, Myeong-Hee Kim

Background: Although the survival rate of thrombocytopenic purpura (TTP) has increased significantly due to the introduction of therapeutic plasma exchange (TPE). TTP in patients with mixed connective tissue disease (MCTD) has a very high mortality rate and a very small number of reported cases. In TTP, daily TPE is administered until a treatment response is achieved; however, in practice, TPE is often not performed for such long durations.
Methods: We report a case of TTP with MCTD in a female patient. She had developed thrombocytopenia and hemolytic anemia 9 months after delivery. She had status epilepticus and lapsed into a coma.
Results: The patient was successfully treated with extended sessions of TPE with corticosteroids and rituximab.
Conclusions: Although the TTP regimen has not yet been established and remains controversial, this report demonstrates the importance of continuing daily TPE until achieving a treatment response.

DOI: 10.7754/Clin.Lab.2021.210930