• Çaglar Ödek, Tanil Kendirli, Ayhan Yaman, Talia Ileri, Zarife Kuloğlu, and Erdal Ince.
• Divisions of *Pediatric Critical Care †Pediatric Hematology ‡Pediatric Gastroenterology, Faculty of Medicine, Ankara University, Ankara, Turkey.
• J. Pediatr. Hematol. Oncol. 2014 Mar 1; 36 (2): e88-90.

IntroductionThrombotic microangiopathy (TMA) is characterized by microvascular thrombosis, thrombocytopenia, and microangiopathic hemolytic anemia. Previous studies have shown that cyclosporine (CsA) is associated with TMA but the number of reported cases is very limited. We describe a 13-year-old girl with CsA-associated TMA and thrombocytopenia-associated multiple organ failure (TAMOF).Case ReportThe patient was diagnosed with polyglandular deficiency syndrome and had a history of celiac disease, autoimmune thyroiditis, and diabetes mellitus type I. CsA was started 7 months before her admission to our pediatric intensive care unit for persistent diarrhea associated with celiac disease. At the time of her admission to our pediatric intensive care unit, she was thrombocytopenic and anemic with multiple organ failure. Laboratory and clinical findings were consistent with TMA and TAMOF. CsA was discontinued and therapeutic plasma exchange was performed daily for 5 days. The patient improved clinically, laboratory findings normalized, and TMA and multiple organ failure dissolved.ConclusionThis case report indicates that therapeutic plasma exchange may be effective in the treatment of CsA-associated TMA and TAMOF, especially in the presence of systemic findings.

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