Contrast medium-induced nephropathy: strategies for prevention

Area of Science:

• Nephrology
• Radiology
• Critical Care Medicine

Background:

• Contrast medium-induced nephropathy (CIN) is a significant cause of hospital-acquired acute renal failure.
• The precise mechanisms of CIN, involving renal hemodynamics and tubular toxicity, remain incompletely understood.
• Preexisting renal insufficiency is the primary risk factor for developing CIN.

Purpose of the Study:

• To review the established and emerging strategies for preventing contrast medium-induced nephropathy.
• To evaluate the efficacy of different preventive measures, focusing on intravenous fluids, sodium bicarbonate, and N-acetylcysteine.

Main Methods:

• Review of existing literature on contrast medium-induced nephropathy prevention.
• Analysis of studies evaluating sodium chloride, sodium bicarbonate, and N-acetylcysteine for CIN prophylaxis.
• Assessment of the consistency and effectiveness of various preventive regimens.

Main Results:

• Intravenous sodium bicarbonate administration significantly reduces CIN frequency in at-risk patients.
• Sodium bicarbonate is considered the most reliable and effective preventive option currently available.
• Periprocedural N-acetylcysteine has demonstrated preventive effects, though less consistently than sodium bicarbonate.

Conclusions:

• Identifying patients with CIN risk factors is crucial for implementing preventive strategies.
• Sodium bicarbonate represents the most evidence-based and effective method for CIN prevention.
• Further research is needed to optimize N-acetylcysteine regimens and explore combination therapies for CIN prevention.