Contrast Nephropathy Post PCI

By clicking on the “Submit” button below, you acknowledge that you have read, understand, and agree to be bound by the terms of the QxMD Online Calculator End User Agreement.

Use this calculator to calculate the risk of contrast nephropathy after PCI.

Age > 75
BP < 80 mmHg
Intra-aortic balloon pump
NYHA III/IV or prior pulmonary edema
Hematocrit < 39% if male or < 36% if female
Diabetes
Volume of contrast (ml)
Is the patient’s creatinine > 1.5mg/dL (> 132 µmol/L)
OR enter the patient’s GFR

About this calculator

This calculator measures the risk of contrast nephropathy post-percutaneous intervention, as per Mehran et al (2004). In that study, patients were given IV half-normal saline at a rate of 1 ml/kg/h for 4 to 12 hours before PCI and 18 to 24 hours after PCI. Definitions: contrast-induced nephropathy is defined as an increase of more than 25%, or more than 0.5 mg/dL, or more than 44 micromol/L, in pre-PCI serum creatinine at 48 hours after PCI. Anemia is defined as a baseline hematocrit value of less than 39% for men and less than 36% for women. Hypotension is defined as systolic blood pressure of less than 80 mmHg for at least 1 hour requiring inotropic support with medications or intra-aortic balloon pump (IABP) within 24 hours periprocedurally. For simplicity, our calculator asks whether the systolic blood pressure is less than 80 mmHg. Congestive heart failure is defined as a heart condition which fulfills the NYHA III or IV or prior pulmonary edema.

Citation

 
Mehran R, Aymong ED, Nikolsky E, Lasic Z, Iakovou I, Fahy M, Mintz GS, Lansky AJ, Moses JW, Stone GW, Leon MB, Dangas G. A simple risk score for prediction of contrast-induced nephropathy after percutaneous coronary intervention: development and initial validation. J Am Coll Cardiol. 2004 Oct 6;44(7):1393-9. PMID: 15464318.

Contributor

QxMD Nephrology contributing author: Daniel Schwartz, MD, FRCP(C)