Abstract

Thrombotic microangiopathies are almost devastating diseases leading to death at high frequency if untreated. They consist of at least five distinct entities, TTP, HUS, aHUS, TMA due to drug interference, systemic disease or post therapy TMA. Around 10 years ago there was only one established therapeutic approach as plasmapheresis. Meanwhile, there are new drugs been licensed or within licensing process. Patients with atypical HUS can be treated successfully by the Complement inhibitor Eculizumab. In addition, there is a new inhibitor of von-Willebrand-Polymerisation available. Caplacizumab provides a significantly better remission and decrease in TMA-related death. For therapy associated TMA as VOD/SOS Defibrotide could be established within a phase III study to significantly improve outcomes. In order to select these new medical approaches individual diagnostic parameters need to be established in order to rapidly distinguish between the TMA entities and start targeted therapy.

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