[Therapy of vasculitides and vasculopathies].

Treatment and course of leukocytoclastic immune-complex vasculitis (LcV) depend on absence or presence of IgA in immune complexes [Henoch-Schoenlein-Purpura (PSH)]. LcV due to IgG- or IgM-containing immune complexes has a better prognosis. If triggers cannot be detected or avoided, symptomatic treatments are usually sufficient due to a usually favourable course. When hemorrhagic blisters suggest incipient skin necrosis corticosteroids are indicated. For chronic or relapsing LcV we suggest colchicine or dapsone. In adults with PSH and severe glomerulonephritis there is insufficient evidence for the efficacy of glucocorticoids; but e.g. ACE inhibitors can be helpful depending on symptoms. In cryoglobulinemic vasculitis underlying diseases (often plasmocytoma or hepatitis C) should be treated, sometimes supplemented by plasmapheresis. Dapsone or colchicine are usually started for urticarial vasculitis. ANCA-associated systemic vasculitis requires rapid and aggressive induction therapy, usually with glucocorticoids and cyclophosphamide. In classic polyarteriitis nodosa glucocorticoids improve prognosis, in polyarteriitis nodosa cutanea colchicine or dapsone are more appropriate. Giant cell arteriitis requires rapid therapy with glucocorticoids. For livedo vasculopathy antithrombotic measures are required with low molecular heparin or antagonists to vitamin K, for maintenance dipyridamol und aspirin.