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Nephrotoxicity related to contrast media
1Medical Department, The National Hospital (Rikshospitalet), University of Oslo, Norway. kjberg@online.no
Contrast media (CM) use is rising, but can cause kidney damage (contrast nephropathy). Newer contrast media like iso-osmolar contrast media (IOCM) are safer and less nephrotoxic, reducing risks for patients.
Area of Science:
- Radiology and Nephrology
- Medical Imaging and Contrast Agents
Background:
- Contrast media (CM) use in medical imaging is increasing globally, with 60 million doses sold annually.
- Despite chemical improvements, CM remain a leading cause of hospital-acquired acute renal failure.
- Contrast nephropathy (CN) is a significant concern in clinical practice.
Purpose of the Study:
- To define contrast nephropathy (CN) and elucidate its pathogenic mechanisms.
- To compare the nephrotoxicity and side-effects of different types of contrast media.
- To discuss risk factors and prevention strategies for CN.
Main Methods:
- Review of existing literature on contrast media and nephrotoxicity.
- Comparison of high osomolar contrast media (HOCM), low osmolar contrast media (LOCM), and iso-osmolar contrast media (IOCM).
- Analysis of clinical data regarding side-effects and renal outcomes.
Main Results:
- Low osmolar contrast media (LOCM) exhibit reduced nephrotoxicity and fewer osmotoxic side-effects compared to HOCM.
- Iso-osmolar contrast media (IOCM) demonstrate even fewer hemodynamic side-effects and improved urinary tract opacification.
- IOCM possess low nephrotoxicity, representing an advancement in patient safety.
Conclusions:
- The choice of contrast media significantly impacts nephrotoxicity risk.
- Iso-osmolar contrast media (IOCM) offer a favorable safety profile for contrast-enhanced examinations.
- Understanding risk factors and implementing preventive measures are crucial for managing contrast nephropathy.
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