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Original Article
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Volume 348:491-499 February 6, 2003 Number 6
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Nephrotoxic Effects in High-Risk Patients Undergoing Angiography
Peter Aspelin, M.D., Ph.D., Pierre Aubry, M.D., Sven-Göran Fransson, M.D., Ph.D., Ruth Strasser, M.D., Ph.D., Roland Willenbrock, M.D., Knut Joachim Berg, M.D., Ph.D., for the NEPHRIC Study Investigators

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ABSTRACT

Background The use of iodinated contrast medium can result in nephropathy. Whether iso-osmolar contrast medium is less nephrotoxic than low-osmolar contrast medium in high-risk patients is uncertain.

Methods We conducted a randomized, double-blind, prospective, multicenter study comparing the nephrotoxic effects of an iso-osmolar, dimeric, nonionic contrast medium, iodixanol, with those of a low-osmolar, nonionic, monomeric contrast medium, iohexol. The study involved 129 patients with diabetes with serum creatinine concentrations of 1.5 to 3.5 mg per deciliter who underwent coronary or aortofemoral angiography. The primary end point was the peak increase from base line in the creatinine concentration during the three days after angiography. Other end points were an increase in the creatinine concentration of 0.5 mg per deciliter or more, an increase of 1.0 mg per deciliter or more, and a change in the creatinine concentration from day 0 to day 7.

Results The creatinine concentration increased significantly less in patients who received iodixanol. From day 0 to day 3, the mean peak increase in creatinine was 0.13 mg per deciliter in the iodixanol group and 0.55 mg per deciliter in the iohexol group (P=0.001; the increase with iodixanol minus the increase with iohexol, –0.42 mg per deciliter [95 percent confidence interval, –0.73 to –0.22]). Two of the 64 patients in the iodixanol group (3 percent) had an increase in the creatinine concentration of 0.5 mg per deciliter or more, as compared with 17 of the 65 patients in the iohexol group (26 percent) (P=0.002; odds ratio for such an increase in the iodixanol group, 0.09 [95 percent confidence interval, 0.02 to 0.41]). No patient receiving iodixanol had an increase of 1.0 mg per deciliter or more, but 10 patients in the iohexol group (15 percent) did. The mean change in the creatinine concentration from day 0 to day 7 was 0.07 mg per deciliter in the iodixanol group and 0.24 mg per deciliter in the iohexol group (P=0.003; value in the iodixanol group minus the value in the iohexol group, –0.17 mg per deciliter [95 percent confidence interval, –0.34 to –0.07]).

Conclusions Nephropathy induced by contrast medium may be less likely to develop in high-risk patients when iodixanol is used rather than a low-osmolar, nonionic contrast medium.


Source Information

From the Department of Radiology, Huddinge University Hospital, Stockholm, Sweden (P. Aspelin); the Department of Cardiology, Centre Hospitalier Universitaire Bichat, Paris (P. Aubry); the Department of Thoracic Radiology, Linköping University Hospital, Linköping, Sweden (S.-G.F.); the Medizinische Klinik II–Kardiologie Herzzentrum, Technische Universität, Dresden, Germany (R.S.); the Department of Cardiology, Franz-Volhard-Klinik, Helios Kliniken, Berlin, Germany (R.W.); and the Laboratory for Renal Physiology, Rikshospitalet, Oslo, Norway (K.J.B.).

Address reprint requests to Dr. Aspelin at the Department of Radiology, Huddinge University Hospital, 141 86 Stockholm, Sweden, or at peter.aspelin{at}cfss.ki.se.

Full Text of this Article


Related Letters:

Nephropathy Induced by Contrast Medium
Gruber S. J., Shapiro C. J., Braun C., Birck R., Bridges C. M., Swaroop V. S., Cuddihy M.-T., Aspelin P., Berg K. J.
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N Engl J Med 2003; 348:2257-2259, May 29, 2003. Correspondence

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