There is no benefit in routinely monitoring ANCA titres in patients with granulomatosis with polyangiitis.

To analyse the link between antineutrophil cytoplasmic antibody (ANCA) levels and risk of relapse in patients with granulomatosis with polyangiitis (GPA), as the clinical benefit of monitoring ANCA levels is uncertain.A retrospective analysis was made of all charts available from 43 patients diagnosed with GPA, fulfilling The American College of Rheumatology 1990 criteria, and followed between 1994 and 2012 at a general internal medicine...