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Safety of gadolinium contrast agent in hemodialysis patients

S Okada1, K Katagiri, T Kumazaki

  • 1Department of Radiology, Nippon Medical School Chiba-Hokuso Hospital, Japan.

Acta Radiologica (Stockholm, Sweden : 1987)
|May 15, 2001
PubMed

Insights

Gadolinium (Gd) contrast agents are safe for hemodialysis patients. Prompt hemodialysis after contrast-enhanced MRI effectively removes Gd, preventing adverse effects and blood changes.

Area of Science:

  • Nephrology
  • Radiology
  • Pharmacology

Background:

  • Gadolinium-based contrast agents (GBCAs) are widely used in magnetic resonance imaging (MRI).
  • Concerns exist regarding the retention of gadolinium in patients with impaired renal function, particularly those undergoing hemodialysis.

Purpose of the Study:

  • To evaluate the safety and efficacy of gadolinium contrast agent administration in patients undergoing maintenance hemodialysis.
  • To assess the rate of gadolinium excretion following hemodialysis sessions post-contrast enhanced MRI.

Main Methods:

  • Seventy hemodialysis patients received gadolinium contrast agents for MRI examinations.
  • Patients underwent hemodialysis sessions at varying intervals post-imaging.
  • Serum gadolinium concentrations were measured before and after serial hemodialysis sessions in a subset of patients.
  • Systematic monitoring for cardiovascular, cutaneous, respiratory, neurological, and digestive side effects was conducted.

Main Results:

  • No adverse side effects or significant changes in blood parameters were observed in any of the study participants.
  • Average gadolinium excretion rates increased progressively with each hemodialysis session, reaching 99.5% by the fourth session.
  • Rapid and efficient clearance of gadolinium was demonstrated through timely hemodialysis.

Conclusions:

  • Gadolinium contrast agents can be safely administered to hemodialysis patients.
  • Prompt initiation of hemodialysis following contrast-enhanced MRI facilitates effective gadolinium elimination.
  • This study supports the judicious use of GBCAs in this patient population when appropriate precautions are taken.
Abstract

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