Microscopic Polyangiitis / ANCA-associated vasculitis (AAV)
from OrphaChat — a Rare Disease Podcast Hosted by RCH
These sources examine the diagnosis, management, and epidemiological patterns of ANCA-associated vasculitis (AAV), a group of rare autoimmune disorders that cause blood vessel inflammation. Clinical research highlights the efficacy of rituximab and cyclophosphamide for inducing remission, while also noting that approximately one in four patients may experience a relapse during maintenance therapy. The texts discuss the emerging role of avacopan as an adjunctive treatment and the potential of CAR-T cell therapy for refractory cases. Regional variations are significant, with MPO-ANCA more prevalent in Japan and PR3-ANCA appearing more frequently in the United Kingdom. Diagnostic advancements, such as EBUS-guided cryobiopsy and detailed CT imaging, are explored alongside the importance of multidisciplinary care teams. Furthermore, data indicates that older age, male gender, and kidney involvement serve as critical predictors for higher mortality and recurrence rates.
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