Revised Cardiac Risk Index (RCRI) β Free Online Calculator
Risk Factors
RCRI Score
0
Low risk β estimated 3.9% major cardiac event rate
About This Calculator
The Revised Cardiac Risk Index (RCRI), also known as the Lee Index, estimates the risk of major cardiac complications (myocardial infarction, pulmonary edema, ventricular fibrillation, cardiac arrest, or complete heart block) after non-cardiac surgery. It is one of the most widely used preoperative cardiac risk assessment tools.
Formula
Interpretation
| RCRI Score | Major Cardiac Event Risk |
|---|---|
| 0 | 3.9% |
| 1 | 6.0% |
| 2 | 10.1% |
| β₯ 3 | β₯ 15% |
Frequently Asked Questions
What risk factors are included in the RCRI?
The six RCRI criteria are: (1) high-risk surgery (intraperitoneal, intrathoracic, or suprainguinal vascular), (2) history of ischemic heart disease, (3) history of congestive heart failure, (4) history of cerebrovascular disease, (5) insulin-dependent diabetes, and (6) preoperative creatinine >2 mg/dL.
How is the RCRI score interpreted?
Each criterion scores 1 point. Estimated risk of major cardiac events (MI, pulmonary edema, cardiac arrest, complete heart block): 0 points β ~3.9%, 1 point β ~6%, 2 points β ~10.1%, β₯3 points β ~15% or higher.
When should the RCRI be used?
RCRI should be calculated for patients aged β₯45 (or 18β44 with known cardiovascular disease) undergoing non-cardiac surgery requiring overnight hospital stay. It helps guide decisions about further cardiac testing, perioperative monitoring, and medication management.
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β Medical Disclaimer
This tool is for educational and informational purposes only. It is not intended to replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional for clinical decisions.