Chronic rheumatoid arthritis complicated by myeloperoxidase antineutrophilcytoplasmic antibody-associated nephritis

We report a myeloperoxidase antineutrophil cytoplasmic antibody-positive rh eumatoid arthritis patient who developed necrotizing crescentic glomerulone phritis, Steroid therapy was given combined with an immunosuppressant agent , and double-filtration plasmapheresis was started with the aim of removing antibodies from the blood. This therapeutic regimen was found to be useful .