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Updated: Aug 17, 2026

Isolation of Glomeruli and In Vivo Labeling of Glomerular Cell Surface Proteins
Published on: January 18, 2019
Contrast nephropathy
1Department of Cardiology, Marshfield Clinic, Marshfield, Wisconsin 54449, USA. rezkalla.shereif@marshfieldclinic.org
Insights
Preventing contrast nephropathy, a risk after angiographic procedures, involves hydration and electrolyte correction. Acetylcysteine and theophylline pre-treatment are recommended, while mannitol and diuretics are ineffective for prevention.
Area of Science:
- Nephrology
- Cardiology
- Radiology
Background:
- Contrast nephropathy increases mortality by up to 30% post-angiography.
- Risk-benefit assessment is crucial before contrast procedures.
Purpose of the Study:
- To review strategies for preventing contrast nephropathy.
- To evaluate the efficacy of various prophylactic measures.
Main Methods:
- Literature review of studies on contrast nephropathy prevention.
- Analysis of established and controversial prophylactic treatments.
Main Results:
- Hydration and electrolyte correction are essential for all patients.
- Acetylcysteine and theophylline pre-treatment are well-accepted strategies.
- Mannitol and diuretics show no preventive role; fenoldopam's role is controversial.
Conclusions:
- Prophylactic hemodialysis may benefit selected patients.
- Optimizing pre-procedure care is key to mitigating contrast-induced kidney injury.
Abstract:
Contrast nephropathy will increase mortality up to 30% following angiographic procedures. Before performing such procedures a careful reassessment of the risk/benefit ratio should be performed. Mannitol and diuretics play no role in prevention. Hydration and correction of abnormal electrolyte levels should be done in all patients. Pre-treatment with acetylcysteine and theophylline is a well-accepted strategy and should always be utilized. If creatinine levels are above 2.5 to 3 mg/dl, fenoldopam may provide additional protection, particularly in diabetic patients. However, the role of fenoldopam is controversial. Prophylactic hemodialysis may prove to be an additional tool in the fight against this disease in selected patients.
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