Search for: [Abstract = "Introduction ANCA\-associated vasculitides \(AAV\) is a group of rare diseases of unknown etiology and autoimmune patomechanism, which includes three entities \- granulomatosis with polyangiitis \(GPA\), microscopic polyangiitis, \(MPA\) and eosinophilic granulomatosis with polyangiitis \(EGPA\). AAV cause predominantly inflammation of the small vessels, which damage leads to the organ lesions, depending on the distribution of the inflammatory changes. Among the most common manifestations there are ENT, renal and pulmonary involvement, however, almost each organ may be involved in the course of this group of diseases. The significant advancement in the field of diagnostics and therapy of AAV have been made during the last several decades. These achievements, especially the possibility of administration of the immunosuppressive treatment have resulted in the improvement of the outcomes for patients with AAV, changing the status of these disorders from rapidly progressive and inevitably fatal to chronic, relapsing diseases. Despite this undeniable progress, the optimal treatment regimens are still being discussed and revised and long\-lasting immunosuppressive treatment have become an important factor influencing mortality and morbidity. The aim of the study was the analysis of the treatment modalities and the associated side effects in a Polish nation\-wide ANCA\-associated v"]
