The treatment of thrombotic thrombo-cytopenic purpura with exchange transfusions, plasma infusions, and plasma exchange. multicenter survey and retrospective analysis of current efficacy of therapeutic plasma exchange. The thrombotic thrombocytopenic purpura and hemolyt-ic uremic syndromes: evaluation, management, and long-term out-et al. ADAMTS13 activity in thrombotic thrombocytopenic purpura...