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Imaging Studies I: CT and MRI

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Nephrogenic systemic fibrosis and gadolinium-based contrast agents.

Ali K Abu-Alfa1

  • 1Section of Nephrology, Yale School of Medicine, New Haven, CT 06520-8029, USA. ali.abu-alfa@yale.edu

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Nephrogenic systemic fibrosis (NSF) risk is linked to gadolinium-based contrast agents (GBCAs) in kidney disease patients. Identifying at-risk individuals and balancing imaging benefits against NSF risks is crucial for patient care.

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Area of Science:

  • Nephrology
  • Radiology
  • Pharmacology

Background:

  • Nephrogenic systemic fibrosis (NSF) is a serious condition strongly associated with gadolinium-based contrast agents (GBCAs).
  • NSF affects patients with End-Stage Renal Disease (ESRD), Chronic Kidney Disease (CKD), and Acute Kidney Injury (AKI), with a higher incidence in ESRD.
  • Certain GBCAs carry a higher risk, leading to contraindications by regulatory bodies for at-risk populations.

Purpose of the Study:

  • To highlight the association between GBCAs and NSF in patients with kidney disease.
  • To emphasize the importance of identifying individuals at risk for NSF.
  • To discuss current recommendations and the need for individualized assessment regarding GBCA use and dialysis in CKD and AKI patients.

Main Methods:

  • Review of existing literature and reported cases of NSF associated with GBCAs.
  • Analysis of risk factors and patient populations affected by NSF, including different stages of kidney disease.
  • Evaluation of current clinical recommendations for GBCA administration and dialysis management in patients with impaired kidney function.

Main Results:

  • NSF occurs in patients with ESRD, CKD, and AKI, with a significant proportion in those with AKI or advanced CKD.
  • A risk difference exists among various GBCAs, with some linear agents being contraindicated in high-risk patients.
  • Immediate hemodialysis (HD) is recommended post-GBCA administration for ESRD and peritoneal dialysis patients, though not universally for CKD stages 4-5.

Conclusions:

  • Individualized risk assessment is critical for patients with CKD and AKI undergoing procedures requiring GBCAs.
  • Policies are needed to balance the diagnostic benefits of GBCAs against the risks of NSF, especially for patients nearing dialysis initiation.
  • Further research may be needed to refine recommendations for GBCA use and dialysis management in specific kidney disease populations.