title: Unexpected severe reversible cyclosporine A-induced nephrotoxicity in a patient with systemic lupus erythematosus and tubulointerstitial renal disease.
abstract: We describe a patient with systemic lupus erythematosus and impaired renal function probably mainly due to tubulointerstitial disease. After a six-week course of low-dose cyclosporine A, she developed a severe but reversible loss of glomerular filtration rate and effective renal plasma flow despite of low cyclosporine A plasma levels. Based upon the observed fall of the filtration fraction, the rise in the relative clearance of 99Tc-dimercaptosuccinic acid and the increase in proteinuria, we suggest that in this case the tubules and/or interstitium are the main targets for cyclosporine A nephrotoxicity. Neither our patient's clinical symptoms nor her serologic parameters improved possibly because of the low dosage and/or short duration of cyclosporine A treatment. We conclude that one should be cautious when treating patients with systemic lupus erythematosus and pre-existing renal disease with cyclosporine A especially when tubulointerstitial abnormalities are present and/or other nephrotoxic drugs are used.
authors: Department of Internal Medicine, University Hospital Groningen, The Netherlands.
authors: E J
authors: EJ
authors: ter Borg
authors: A M
authors: AM
authors: Tegzess
authors: C G
authors: CG
authors: Kallenberg
mesh_terms: D000328:Adult; D003524:Cyclosporins / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007668:Kidney / Q000187:drug effects*; D008180:Lupus Erythematosus, Systemic / Q000188:drug therapy*; D009395:Nephritis, Interstitial / Q000150:complications*
chemical_list: D003524:Cyclosporins