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[Contrast-induced acute renal failure].

M Giannattasio1

  • 1Struttura Complessa di Nefrologia e Dialisi, Azienda USL Bari 5, Piazza Padre Pio, 70017 Putignano, Bari, Italy. michele.giannattasio@libero.it

Giornale Italiano Di Nefrologia : Organo Ufficiale Della Societa Italiana Di Nefrologia
|July 8, 2005
PubMed
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Radiocontrast media (RC) can cause acute renal failure (ARF), often reversible, especially in high-risk patients. Prevention strategies, including hydration and using low-osmolality agents, are crucial for minimizing this risk.

Area of Science:

  • Nephrology
  • Radiology
  • Pharmacology

Context:

  • Radiocontrast media (RC) administration is associated with acute renal failure (ARF).
  • Defining RC-induced ARF involves serum creatinine (Cr) rise of 25-50% or 0.5-1.0 mg/dL within 48 hours.
  • Risk factors include pre-existing renal insufficiency, diabetes, volume depletion, and heart failure.

Purpose:

  • To review the definition, risk factors, pathogenesis, and prevention of contrast-induced acute renal failure (ARF).

Summary:

  • RC-induced ARF is typically reversible within 8-12 days, but can be irreversible and increase mortality.
  • Pathogenesis involves vascular and direct tubular effects, with altered renal hemodynamics predominating.
  • Risk increases with declining renal function, diabetes, and multiple contrast studies.

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Impact:

  • Highlights the importance of preventive measures for contrast-induced ARF.
  • Emphasizes using alternative imaging, lower contrast doses, and appropriate contrast agents in high-risk individuals.
  • Suggests hydration, avoiding nephrotoxic agents, and considering acetylcysteine for prevention.