Clinical features and outcomes in patient with antineutrophil cytoplasmic autoantibody-positive glomerulonephritis associated with propylthiouracil treatment in Siriraj Hospital
Visavachaipan, N.; Ong-Ajyooth, L.; Chanchairujuira, T.; Parichatikanond, P.; Choensuchon, B.
Journal of the Medical Association of Thailand 93(Suppl 1): S139-S146
2010
ISSN/ISBN: 0125-2208 PMID: 20364568 Document Number: 11484
ANCA is detected in several vasculitic diseases, including drug-induced systemic vasculitis: propylthiouracil (PTU), hydralazine, minocycline, penicillamine, allopurinol, procainamide, carbimazole, thiamazole, clozapine and phenytoin. All have been known to induce ANCA positive vasculitis in adult patients. To study the clinical manifestation, renal pathology and outcome of patients with ANCA positive vasculitis associated with propylthiouracil treatment in Siriraj Hospital. Retrospective study in 7patients with Graves' disease who were treated with propylthiouracil and developed ANCA-positive glomerulonephritis between 2000-2008. Seven cases with Graves' disease who received propylthiouracil whose ages were 43 +/- 14 years. The duration of propylthiouracil treatment was 68.5 +/- 39 months and the doses were 50-150 mg per day. Six cases had P-ANCA and one case had C-ANCA in the serum. Proteinuria ranged from 0.49-2.9 gram per day. Mean serum creatinine was 2.05 mg/dl with creatinine clearance of 44 +/- 35 ml/min. The propylthiouracil was withdrawn in every patient and corticosteroid was administered. Renal remission was found until 1 year of follow-up. ANCA positive glomerulonephritis associated with propylthiouracil is not uncommon. The average onset of glomerulonephritis is 2 years or more. The propylthiouracil dosage was not necessary high. Urinalysis and other glomerulonephritis symptoms should be screened for early diagnosis and appropriate treatment in patients treated with PTU.