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Incidences of acute kidney injury, dialysis, and graft loss following intravenous administration of low-osmolality iodinated contrast in patients with kidney transplants

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Abstract

Purpose

To determine the incidence of acute kidney injury (AKI), need for emergent dialysis, and renal graft loss in patients with kidney transplants, who underwent CT examinations with low-osmolality iodine-based contrast material (IBCM).

Materials and methods

Our institutional review board approved this retrospective Health Insurance Portability and Accountability Act compliant study. From January 2005 to April 2015, a total of 224 CT examinations were performed using low-osmolality IBCM in patients with kidney transplants. Six patients who had septic or cardiogenic shock and 30 patients with documented, failed transplants were excluded from our analysis, yielding a total of 188 examinations. Of these, pre- and post-CT serum creatinine (SCr) values were available for 104 examinations, to allow evaluation of AKI. The mean baseline SCr and estimated glomerular filtration rate (eGFR) in this subgroup were 1.37 mg/dL (median 1.18, range 0.5–6.05) and 65.8 mL/min/1.73 m2, respectively (median 65, range 9–114). AKI was defined as a rise in SCr of either (a) ≥0.3 mg/dL or (b) ≥0.5 mg/dL in the 24- to 72-h period following IBCM administration. For all patients undergoing the 188 examinations, need for dialysis and graft loss 30 days after contrast administration were evaluated.

Results

In patients with pre- and post-CT SCr values, the incidence of AKI was 7% (7/104) based on a rise of ≥0.3 mg/dL and 3% (3/104) based on a rise of ≥0.5 mg/dL. All three patients with the more strict definition (≥0.5 mg/dL) had a pre-CT eGFR <60 mL/min/1.73 m2. No patient required dialysis or had renal graft loss 30 days after contrast administration.

Conclusion

The incidence of AKI after administration of low-osmolality IBCM administration in renal transplant recipients is low, with no instances of emergent dialysis or graft loss at 30 days post contrast.

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Correspondence to Ghaneh Fananapazir.

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Conflict of interest

Fananapazir, Troppmann, Corwin, Nikpour, Naderi, and Lamba declare that they have no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the Institutional and/or National Research Committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

Informed consent

Requirement for informed consent was waived by our Institutional Review Board for this retrospective study.

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Fananapazir, G., Troppmann, C., Corwin, M.T. et al. Incidences of acute kidney injury, dialysis, and graft loss following intravenous administration of low-osmolality iodinated contrast in patients with kidney transplants. Abdom Radiol 41, 2182–2186 (2016). https://doi.org/10.1007/s00261-016-0827-3

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  • DOI: https://doi.org/10.1007/s00261-016-0827-3

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