Cardiac Surgery-Associated Acute Kidney Injury: An Updated Review of Current Preventive Strategies

Area of Science:

• Nephrology
• Cardiology
• Critical Care Medicine

Background:

• Acute kidney injury (AKI) is a common and serious complication after cardiac surgery.
• AKI following cardiac surgery is linked to adverse short-term and long-term patient outcomes.
• Despite extensive research, effective prevention strategies for cardiac surgery-associated AKI are limited.

Purpose of the Study:

• To review and summarize the current evidence on preventing acute kidney injury in cardiac surgery patients.
• To identify promising interventions that may reduce the incidence of cardiac surgery-associated AKI.
• To highlight the need for further validation of potential preventive strategies.

Main Methods:

• Review of randomized clinical trials investigating interventions for preventing cardiac surgery-associated AKI.
• Analysis of studies reporting positive or negative outcomes for various preventive strategies.
• Assessment of the current evidence base for clinical recommendations.

Main Results:

• Most randomized clinical trials for preventing cardiac surgery-associated AKI have yielded negative results.
• Several interventions, including oxygen delivery-directed perfusion and specific drugs (e.g., teprasiran, amino acids), have shown encouraging preliminary results.
• The efficacy of these promising interventions requires confirmation in larger, multicenter trials.

Conclusions:

• Preventing acute kidney injury after cardiac surgery is an ongoing clinical challenge.
• While some novel interventions show potential, they are not yet ready for routine clinical practice.
• Further large-scale, multicenter validation trials are essential before recommending new strategies for preventing cardiac surgery-associated AKI.