Ionic Low-Osmolar Versus Nonionic Iso-Osmolar Contrast Media to Obviate Worsening Nephropathy After Angioplasty in Chronic Renal Failure Patients

Conclusions In high-risk patients undergoing coronary angiographic procedures, use of the nonionic iso-osmolar CM iodixanol does not reduce renal deterioration in patients with renal impairment, compared with the ionic low-osmolar CM ioxaglate. Given that the study was underpowered to compare nephrotoxicity of the 2 groups under the active medical protection of CIN, a larger randomized study is warranted that will enroll patients with higher risks of CIN under a strict control of hydration regimens and adjunctive medications.