It was with much interest that we read the letter of Novikov et al on testing for antineutrophil cytoplasmic antibodies (ANCAs) in patients with ANCA-associated vasculitides (AAV) and other diseases. In their letter, the authors (1) share their experience with direct testing for proteinase-3 (PR3) ANCA and myeloperoxidase (MPO) ANCA and (2) raise some important issues regarding interpretation o...

We determined the occurrence of antineutrophil cytoplasmic antibodies (ANCAs) and their specificities in 77 rheumatoid arthritis (RA) patients and compared them with 25 patients with psoriatic arthritis (Pso), 19 with drug-induced lupus erythematosus (DI-LE) and 11 with systemic lupus erythematosus (SLE). Thirty-two percent of RA patients had positive indirect immunofluorescence (IIF) stains (P...

It was with great interest that we read the correspondence of Mahler and Fritzler on our recent European Vasculitis Study Group (EUVAS) study describing the performance of immunoassays for antineutrophil cytoplasmic antibodies (ANCA) in patients with ANCA-associated vasculitides (AAV). In their letter, Mahler and Fritzler raise some interesting points, mainly related to (i) test result interpre...

To determine the prevalence of antineutrophil cytoplasmic antibodies (ANCA) in patients with infective endocarditis (IE) in internal medicine; and to compare clinical and biochemical features and outcome between patients exhibiting IE with and without ANCA.Fifty consecutive patients with IE underwent ANCA testing. The medical records of these patients were reviewed.Of the 50 patients with IE, 1...

It was with great interest that we read the correspondence of Mahler and Fritzler on our recent European Vasculitis Study Group (EUVAS) study describing the performance of immunoassays for antineutrophil cytoplasmic antibodies (ANCA) in patients with ANCA-associated vasculitides (AAV). In their letter, Mahler and Fritzler raise some interesting points, mainly related to (i) test result interpre...

Antineutrophil cytoplasmic autoantibodies (ANCA) were detected in patients with autoimmune and vascular diseases such as Wegener's granulomatosis, polyarteritis nodosa and systemic lupus erythematosus. Indirect immunofluorescence (IIF) technique was employed to detect these autoantibodies. By this method, two general patterns of ANCA were seen: a cytoplasmic (cANCA) and a perinuclear form ...