Revised Cardiac Risk Index (RCRI): Clinical Guide

Overview

Estimates perioperative cardiac risk using the six Lee index predictors.

Clinical Significance

Higher classes indicate increasing perioperative cardiac risk.

When to Use

• Use as decision support when all required inputs are reliable.

How It Is Calculated

• One point for each of six predictors.

Interpretation

• Higher classes indicate increasing perioperative cardiac risk.

Worked Example

Enter verified values in the displayed units; MedicalC applies the published equation or point system.

Limitations

• Prediction models may be miscalibrated outside their derivation population.
• Measurement and classification error can materially change the result.

Clinical Pearls

• Document source values and units with the result.
• Use trends and the full clinical picture.

Common Mistakes

• Wrong units.
• Using non-contemporaneous inputs.
• Treating the output as a diagnosis or mandatory treatment decision.

References

1. Lee TH et al. Circulation. 1999;100:1043-1049. — Primary or supporting reference for the implemented model.