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Radiology, Vol 115, 329-336, Copyright © 1975 by Radiological Society of North America

ARTICLES

Osmotic Nephrosis Induced by Water-Soluble Triiodinated Contrast Media in Man. A Retrospective Study of 47 Cases

JF Moreau, D Droz, J Sabto, P Jungers, D Kleinknecht, N Hinglais and JR Michel

Renal biopsies were performed in 211 patients which 10 days of excretory urography or renal arteriogrpahy in which diatrizoate, iothalamate or ioxithalamate had been used. In 47 renal specimens, osmotic nephrosis of the proximal tubular cells was found. Previous renal function had been normal in 10 patients, moderately impaired in 19, and severely impaired in 18. Tubular atrophy and/or necrosis was associated with histological features in 29 of 47 patients. Diffuse osmotic nephrosis was more often found in patients biopsied soon after roentgenography and also with severe renal insufficiency, but was not necessarily associated with declining renal function. The mechanism(s) by which contrast media may induce osmotic nephrosis remains unclear.


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