Anca associated vasculitis: occurrence, prediction, prevention, and outcome of relapses

During follow-up, relapses of disease activity occur in the majority of patients with ANCA associated vasculitis. The general objective brought together in this thesis was to further elucidate the characteristics and consequences of these relapses. Investigated items are the occurrence, the prediction, the prevention, and the morbidity of clinical relapses in ANCA associated vasculitis.