INSTITUTE FOR ALGORITHMIC MEDICINE
Cardiac Risk Index.

Purpose: To calculate the cardiac risk index for noncardiac surgical procedures.   About Algorithm

 
Patient's age Years  
Has the patient had an MI within last 6 months?


 
Does the patient have an S3 gallop or JVD?

 
Does the patient have significant aortic valve
stenosis?

es

 
Is non-sinus rhythm or PACS present on preoperative
ECG?

es

 
Were there > 5 VPCs per minute at any time prior to surgery ?

 
pO2 mm Hg  
pCO2 mm Hg  
Serum potassium mEq/L  
Serum bicarbonate mEq/L  
BUN mg/dL  
Serum creatinine mg/dL µmol/L  
Is the patient's AST elevated? No
 
Does the patient have chronic liver disease? No
 
Is the patient bedridden from noncardiac causes? No
 
Was surgery intraperitoneal, intrathoracic or aortic? No
 
Was the operation an emergency? No
 

  About Algorithm