The risk of Contrast-Induced Nephropathy (CIN) after a percutaneous coronary intervention (PCI) is a significant concern for cardiologists. This calculator, often called the Mehran Risk Score, is a validated tool used to estimate a patient’s risk of developing acute kidney injury (AKI) following the administration of contrast dye during the PCI procedure. It works by combining key patient characteristics, such as pre-existing conditions and procedural variables, into a single, easy-to-interpret score. By quickly identifying high-risk patients, the score helps clinicians implement preventive strategies, such as minimizing contrast volume or aggressive hydration, to reduce the risk of kidney damage and improve outcomes.

References:

• Mehran, R., Aymong, E. D., et al. (2004). A simple risk score for prediction of contrast-induced nephropathy after percutaneous coronary intervention. Journal of the American College of Cardiology, 44(7), 1393-1399.
• Marenzi, G., et al. (2007). The prevention of contrast nephropathy with a simplified hydration regimen in patients undergoing percutaneous coronary intervention. American Journal of Cardiology, 99(1), 16-20.