Table 1: The mehran risk score.

Risk Factor

Points

Hypotension*

5

Intra-aortic balloon pump

5

Congestive heart failure

5

Age > 75 years

4

Anemia

3

Diabetes

3

Contrast volume

1 for each 100 cc

Chronic kidney disease

Serum creatinine > 1.5 mg/dL

or

GFR < 60 ml/min/1.73 m2

 

 4

 

2 for GFR 40-59

4 for GFR 20-39

6 for GFR < 20

*Systolic blood pressure < 80 mmHg for at least one hour requiring inotropic support with medications or IABP within 24 hours periprocedurally; NYHA functional class III or IV and/or history of pulmonary edema; Hematocrit < 39% for men or < 36% for women.