A Simple Nomogram to Predict Contrast-Induced Acute Kidney Injury in Patients with Congestive Heart Failure Undergoing Coronary Angiography

Figure 1

Nomogram to estimate the risk of CI-AKI. To use the nomogram, find the position of each variable on the relative axis, draw a line to the points axis for the number of points, add the points derived from all the variables together, and refer to the total points axis to determine CI-AKI probability. For example, a 60-year-old man, with acute myocardial infarction and chronic kidney disease, underwent intra-aortic balloon pump periprocedure. The expected CI-AKI probability with the nomogram is 60 years old = 50 points; AMI = 44 points; IABP = 51 points; and CKD = 39 points. Total 184 points; predicted CI-AKI probability ≈49.7%.