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Year : 2009  |  Volume : 19  |  Issue : 1  |  Page : 15-19

Is carbon dioxide a safe and good alternative for diatrizoate meglumine as a contrast in digital subtraction angiography?

1 Department of Nephrology, Muljibhai Patel Urological Hospital, Nadiad, India
2 Department of Surgery and Radiology, College of Veterinary Science and Animal Husbandry, Anand Agricultural University, Anand, Gujarat, India

Correspondence Address:
U N Hegde
Department of Nephrology, Muljibhai Patel Urological Hospital, Nadiad - 387 001, Gujarat
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0971-4065.50675

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Contrast-induced nephropathy is well-known sequelae of iodinated contrast (diatrizoate meglumine). Carbon dioxide (CO 2 ) can be used as an alternative contrast agent. The aim of this study was to compare the renal injury and the quality of images of aortogram using iodinated contrast versus CO 2 using digital subtraction angiography (DSA). This prospective randomized study was done in 29 healthy dogs using DSA aortogram. Dogs were randomly assigned to receive iodinated contrast or CO 2 . 6-F pigtail catheter was introduced via femoral artery approach to perform aortogram under general anesthesia. Serum creatinine (S.Cr.) and urinary enzymes, namely: N-acetyl D-glucosaminidase (NAG), alanine aminopeptidase (AAP), and gamma glutamyl transferase (GGT), were measured before and 48 hours after aortogram. There was no change in S.Cr. in both the groups. Significantly more enzymuria was seen following iodinated contrast than CO 2 . Enzymuria pre and postaortogram following the iodinated contrast was GGT: 14.9 5.92 vs. 26.2 15.1 ( P = 0.001), NAG: 1.63 0.90 vs. 3.6 2.14 ( P = 0.0001), and AAP: 1.51 0.75 vs. 3.38 2.41 ( P = 0.001), and in the CO 2 group was GGT: 15.5 4.9 vs. 21.1 9.04 ( P = 0.02), NAG: 2.12 1.06 vs. 3.82 3.27 ( P = 0.08), and AAP: 1.28 0.76 vs. 2.51 1.72 ( P = 0.03). More than 50% increase over the preprocedural value was significantly less following CO 2 . Images obtained with iodinated contrast were superior to those with CO 2, however, the quality of image with CO 2 was adequate for delineation of the renal artery and major branches. Both iodinated contrast and CO 2 cause significant enzymuria. More severe enzymuria (>50% increase) was seen significantly less with the use of CO 2 . Quality of images is better with iodinated contrast.


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Indian Journal of Nephrology
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Online since 20th Sept '07