Risk Factors Values Risk Score
Glomerular Filtration Rate Index (GFR) 72 0
Risk of Contrast-Induced Nephropathy 7.5% 5
Risk of Need for Dialysis 0.04%
One Year Mortality Risk 2%
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* All ethnic groups other than African-American.

** Hypotension: systolic blood pressure <80 mmHg for at least 1 hr. requiring inotropic support or intra-aortic balloon pump support within 24 hr. periprocedurally.

*** Congestive Heart Failure: CHF class III/IV by New York Heart Association and/or history of pulmonary edema.

Mehran R, Aymong ED, Nikolsky E, et al. A simple risk score for prediction of contrast-induced nephropathy after percutaneous coronary intervention: Development and initial validation. J Am Coll Cardiol. 2004;44(7):1393-1399. doi:10.1016/j.jacc.2004.06.068.

Total at Risk Population 250 patients
Average additional hospitalization days for CIN1 3.75 day(s)
Cost of Hydration Per Patient $500
Cost Per CIN Patient $9,952.50
Number CIN Patients 50 patients
Total CIN Cost (prevention and treatment) $597,625
Cost Per At-risk Patient $2,391

Estimated Cost Reduction Using RenalGuard

Patients on RenalGuard patients
Total RenalGuard Cost $
Number CIN Patients Among Treated
(based on percent CIN reduction)
Cost Per CIN Patient
(based on dialysis reduction)
Cost of Untreated Patients $
Total CIN Cost $
CIN + RenalGuard $
Total Savings $
Savings per patient treated $

1 Subramanian S et al. Economic burden of contrast-induced nephropathy: implications for prevention strategies. Journal of Medical Economics. 2007;10(2):119–134.

2 Marenzi G et al. Prevention of contrast nephropathy by furosemide with matched hydration: the MYTHOS (Induced Diuresis With Matched Hydration Compared to Standard Hydration for Contrast Induced Nephropathy Prevention) trial. JACC. Cardiovascular interventions. 2012;5(1):90–7.

3 Briguori C. Renal insufficiency following contrast media administration trial II (REMEDIAL II): RenalGuard system in high-risk patients for contrast-induced acute kidney injury: rationale and design. EuroIntervention: Journal of EuroPCR in Collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology. 2011;6(9):1117–1122, 7.




Traceable to IDMS

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eGFR = 106 mL/min/1.73 m2

*All ethnic groups other than African American

Expressing the Modification of Diet in Renal Disease Study Equation for Estimating Glomerular Filtration Rate with Standardized Serum Creatinine Values. Clin. Chem, 2007 Apr;53(4):766-72. Epub 2007 Mar 1.

The first step to limiting the incidence CIN in patients in your cath lab is identifying patients at greatest risk of kidney damage due to contrast. We have developed a pocket CIN-risk calculator. The pocket calculator allows the cardiologist, nurse, or tech to quickly calculate the patient's eGFR and then use the Mehran Risk Score to calculate the patient's risk of developing CIN and requiring dialysis. Please complete the form below to request a complimentary eGFR calculator. Unfortunately we cannot guarantee shipment of calculators, but we will do our best to satisfy all legitimate requests.