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Radiocontrast induced nephropathy.

J S Lindholt1

  • 1Department of Vascular Surgery, Rigshospitalet, Copenhagen, Denmark.

European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery
|March 26, 2003
PubMed
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Contrast media X-ray exams cause acute kidney injury, a major hospital risk. Prevention strategies include hydration, acetylcysteine, and nitrendipine, though research limitations exist.

Area of Science:

  • Nephrology
  • Radiology
  • Pharmacology

Background:

  • Contrast media-enhanced X-ray examinations are a significant cause of hospital-acquired acute renal failure.
  • Acute renal failure is defined by a >50% or >88 micromol/L increase in serum creatinine, peaking 2-5 days post-exposure.

Purpose of the Study:

  • To review the causes, risk factors, and preventive measures for contrast-induced nephropathy.
  • To highlight the limitations of current research in this field.

Main Methods:

  • Literature review of studies on contrast media and renal function.
  • Identification of major and minor risk factors for contrast-induced nephropathy.
  • Evaluation of proposed preventive strategies.

Main Results:

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  • Hypoxic tubular injury due to vasoconstriction and free oxygen radical release is the primary cause.
  • Key risk factors include pre-existing renal insufficiency and diabetes mellitus.
  • Preventive measures such as saline hydration, acetylcysteine, and nitrendipine show promise.

Conclusions:

  • Contrast-induced nephropathy remains a significant clinical concern.
  • Early identification and management of risk factors are crucial for prevention.
  • Further research with larger sample sizes and long-term follow-up is needed to validate findings.