Browsing by Author "Erbey, Fatih"

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    Thrombotic Microangiopathy in Allogeneic Stem Cell Transplantation in Childhood
    (Başkent Üniversitesi, 2010-09) Erbey, Fatih; Tanyeli, Atila; Uckan, Duygu; Cetin, Mualla; Yilmaz, Sema; Kuskonmaz, Baris; Bayram, Ibrahim
    Objectives: We define the incidence, risk factors, and mortality rates for the occurrence of thrombotic microangiopathy in 50 children who underwent transplants between January 2006 and June 2008 at 2 Turkish pediatric centers. Materials and Methods: The diagnosis of thrombotic microangiopathy was done according to the reports of International Working Group in 2007. Results: Fifty patients (27 male and 23 female; age range, 3 months to 18 years) were included. Patients with malignant and nonmalignant diseases were 13 (26%) and 37 (74%). Myeloablative and nonmyeloablative conditioning regimens were used in 29 (58%) and 21 patients (42%). Bone morrow was used as the source of stem cells in 32 patients (62%) and peripheral blood was used in 18 patients (36%). Thrombotic microangiopathy was seen in 3 of 50 cases (6%). Thrombotic microangiopathy developed in 3 of 18 patients in whom peripheral blood was used as the source of stem cells while none of 32 patients who had bone marrow as the source developed thrombotic microangiopathy (P < .05). Conclusions: Using peripheral blood as a source of stem cells is a risk factor for development of thrombotic microangiopathy.