• Alexander J Kallen, Michael A Jhung, Steven Cheng, Theresa Hess, George Turabelidze, Liana Abramova, Matthew Arduino, Jeannette Guarner, Brian Pollack, Georges Saab, and Priti R Patel.
• Division of Healthcare Quality Promotion, National Center for Preparedness, Detection and Control of Infectious Diseases, Atlanta, GA, USA. akallen@cdc.gov
• Am. J. Kidney Dis. 2008 Jun 1; 51 (6): 966-75.

BackgroundNephrogenic systemic fibrosis (NSF) is a newly described disorder occurring in persons with renal failure. Gadolinium-based contrast used in magnetic resonance imaging (MRI) has been suggested as a cause. A cluster of patients with NSF was investigated to identify risk factors. Limited preliminary findings from this investigation were presented in the Morbidity and Mortality Weekly Report.Study DesignMatched case-control.Setting & ParticipantsDialysis patients with and without a diagnosis of NSF treated at an academic medical center.PredictorExposure to gadolinium-based contrast.Outcomes & MeasurementsLaboratory and clinical characteristics of NSF.Results19 of 28 cases identified at the hospital from December 2002 to August 2006 met inclusion criteria and were matched to 57 controls. In univariate analysis, receipt of gadolinium-containing MRI contrast in the preceding year (odds ratio [OR], 7.99; 95% confidence interval, 2.22 to 28.8) was associated with NSF; the measure of association increased as cumulative dose increased. Gadodiamide exposure (OR, 9.83; 95% confidence interval, 2.09 to 46.2) was associated more strongly with NSF than gadoversetamide (OR, 1.82; 95% confidence interval, 0.33 to 10.2). Although not statistically significant, cases were more likely than controls to have undergone primarily peritoneal dialysis in the preceding 6 months. There was no significant difference in receipt of high-dose recombinant erythropoietin between cases and controls. In multivariable analysis, gadolinium contrast exposure (OR, 8.97; 95% confidence interval, 1.28 to 63.0) remained significantly associated with NSF.LimitationsRetrospective design, small sample size, inability to completely evaluate erythropoietin.ConclusionsReceipt of gadolinium-containing MRI contrast is associated with NSF in a dose-dependent manner. The risk associated with gadolinium may differ by contrast agent and dialysis modality. Use of gadolinium-based contrast agents should be avoided when possible in patients with renal failure.

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