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Multicentric evaluation of the new HemosIL Acustar® chemiluminescence ADAMTS13 activity assay

Thrombotic thrombocytopenic purpura (TTP) is a rare life‐threatening thrombotic microangiopathy (TMA) characterized by the severe deficiency of ADAMTS13 activity (<10%). Rapid ADAMTS13 testing is crucial for early diagnosis and optimal management of TTP patients and other TMAs. The objective of this study was to retrospectively evaluate the performance of the recently commercialized HemosIL Acustar® ADAMTS13 activity chemiluminescent immunoassay (Instrumentation Laboratory, Bedford, Massachusetts, United States) in a multicentric study between Spain and Portugal.