TY - CHAP M1 - Book, Section TI - Thrombotic Thrombocytopenic Purpura/Hemolytic Uremic Syndrome A1 - Tfayli, Arafat A1 - Kojouri, Kiarash A1 - George, James N. A2 - Boyiadzis, Michael M. A2 - Frame, James N. A2 - Kohler, David R. A2 - Fojo, Tito PY - 2016 T2 - Hematology-Oncology Therapy, 2e AB - Thrombotic thrombocytopenic purpura (TTP) is defined clinically by the abnormalities caused by systemic thrombotic microangiopathy: thrombocytopenia and microangiopathic hemolytic anemia. Additional clinical features may include neurologic abnormalities, renal failure, and gastrointestinal symptoms Hemolytic-uremic syndrome (HUS) is another clinical presentation of thrombotic microangiopathy. Like TTP, HUS is manifested by thrombocytopenia and microangiopathic hemolytic anemia with the additional abnormality of renal failure. Although it is commonly stated that HUS is manifested primarily by renal failure whereas TTP is manifested primarily by neurologic abnormalities, these 2 syndromes cannot be distinguished clinically, because many patients have both renal failure and severe neurologic abnormalities, or neither. The term HUS is often restricted to children. In adults, all syndromes are referred to as TTP, whether or not neurologic abnormalities or renal failure are present Amorosi EL, Ultmann JE. Medicine (Baltimore) 1966;45:139–159George JN. N Engl J Med 2006;354:1927–1935 SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/23 UR - hemonc.mhmedical.com/content.aspx?aid=1128368349 ER -