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Calcimator

Cardiac Risk Calculator

Revised Cardiac Risk Index (RCRI/Lee Index) for estimating perioperative major cardiac event risk.

Inputs

Results

RCRI Score

0

Estimated MACE Risk

3.9%

Risk Class1
Risk Level1
How to Use This Calculator
  1. Enter 0 or 1 for each RCRI risk factor: high-risk surgery, ischemic heart disease, CHF, cerebrovascular disease, insulin-dependent diabetes, and creatinine > 2 mg/dL.
  2. Review RCRI Score, Risk Class, and Estimated MACE Risk (%).
  3. Class I (0 pts, <1%) and Class II (1 pt, ~1%) are low risk; Class IV (3+ pts, ~9%) warrants cardiology consultation.

What each input means

High-risk surgery
Intraperitoneal, intrathoracic, or suprainguinal vascular surgery. Enter 1 for yes, 0 for no.
Ischemic heart disease
History of MI, positive stress test, angina, nitrate use, or Q waves on ECG. Enter 1 for yes, 0 for no.
Congestive heart failure
History of CHF, pulmonary edema, PND, S3 gallop, or bilateral rales. Enter 1 for yes, 0 for no.
Cerebrovascular disease
History of stroke or TIA. Enter 1 for yes, 0 for no.
Insulin-dependent diabetes
Diabetes mellitus requiring insulin therapy. Enter 1 for yes, 0 for no.
Creatinine > 2 mg/dL
Preoperative serum creatinine > 2.0 mg/dL. Enter 1 for yes, 0 for no.

What each result means

RCRI Score
Total score 0-6. Each risk factor adds 1 point.
Risk Class
Class I (0 pts), II (1 pt), III (2 pts), IV (3+ pts).
Estimated MACE Risk
Estimated risk of major cardiac event (MI, pulmonary edema, VF/cardiac arrest, complete heart block).
Risk Level
1 = Low, 2 = Moderate, 3 = Elevated, 4 = High.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    High-risk surgery = 0, Ischemic heart disease = 0, Congestive heart failure = 0, Cerebrovascular disease = 0 = 6 input(s) provided
  2. Calculate RCRI Score
    RCRI Score
    0 = 0
  3. Calculate Estimated MACE Risk
    3.9 = 3.9
  4. Calculate Risk Class
    1 = 1
  5. Calculate Risk Level
    1 = 1

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