• Gilles Soulez, Daniel C Bloomgarden, Neil M Rofsky, Martin P Smith, Hani H Abujudeh, Desiree E Morgan, Richard J Lichtenstein, Mark L Schiebler, Franz J Wippold, Craig Russo, Matthew J Kuhn, Kevin W Mennitt, Jeffrey H Maki, Alan Stolpen, Johnson Liou, Richard C Semelka, Miles A Kirchin, Ningyan Shen, Gianpaolo Pirovano, and Alberto Spinazzi.
• 1 Centre Hospitalier de l'Université de Montreal-Notre Dame Hospital, Montreal, Canada.
• AJR Am J Roentgenol. 2015 Sep 1; 205 (3): 469-78.

ObjectiveThe purpose of this study was to determine the incidence of nephrogenic systemic fibrosis (NSF) in patients with chronic kidney disease (CKD) and moderate-to-severe impairment of kidney function who had not previously been exposed to gadolinium-based contrast agents (GBCAs) or referred to undergo contrast-enhanced MRI with gadobenate dimeglumine or gadoteridol.Subjects And MethodsTwo multicenter prospective cohort studies evaluated the incidence of unconfounded NSF in patients with stage 3 CKD (estimated glomerular filtration rate [eGFR] in cohort 1, 30-59 mL/min/1.73 m(2)) or stage 4 or 5 CKD (eGFR in cohort 2, < 30 mL/min/1.73 m(2)) after injection of gadobenate dimeglumine (study A) or gadoteridol (study B). A third study (study C) determined the incidence of NSF in patients with stage 4 or 5 CKD who had not received a GBCA in the 10 years before enrollment. Monitoring for signs and symptoms suggestive of NSF was performed via telephone at 1, 3, 6, and 18 months, with clinic visits occurring at 1 and 2 years.ResultsFor studies A and B, the populations evaluated for NSF comprised 363 and 171 patients, respectively, with 318 and 159 patients in cohort 1 of each study, respectively, and with 45 and 12 patients in cohort 2, respectively. No signs or symptoms of NSF were reported or detected during the 2 years of patient monitoring. Likewise, no cases of NSF were reported for any of the 405 subjects enrolled in study C.ConclusionTo our knowledge, and consistent with reports in the literature, no association of gadobenate dimeglumine or gadoteridol with unconfounded cases of NSF has yet been established. Study data confirm that both gadoteridol and gadobenate dimeglumine properly belong to the class of GBCAs considered to be associated with the lowest risk of NSF.

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