Hematopoietic stem cell transplantation associated thrombotic microangiopathy / 中国小儿急救医学

ABSTRACT

Hematopoietic stem cell transplantation related thrombotic microangiopathy (TA-TMA) is a clinical syndrome characterized by microvascular hemolytic anemia, thrombocytopenia and involvement of end organ.The pathogenesis of TA-TMA involves vascular endothelial cell injury and abnormal activation of complement system.The risk factors include conditioning regimens, graft-versus-host disease, immunosuppressants, infection and HLA compatibility.Timely diagnosis and early initiation of appropriate treatment are essential to prevent multiple organ dysfunction and eventual death.At present, the lack of clinical evidence of TA-TMA has led to the fact that its diagnostic criteria and treatment have not been unified.The diagnosis and treatment suggestions put forward by domestic and foreign experts are intended to help clinicians evaluate potential TA-TMA, establish diagnosis in time, and give reasonable treatment and management.