Clinical Decision Support · Free Tool

STS PROM Score Calculator.
Plus EuroSCORE II and AATS — cardiac surgery mortality risk, side by side, in real time.

Free · No login · ~3 minutes

Estimate your cardiac surgery risk
across four validated models.

Six short steps. Fill in only what you know — every input is optional. We'll show you STS PROM, EuroSCORE II, AATS, and our weighted composite at the end, with a clear plain-English interpretation. Optional email summary.

4 risk models
Real-time results
No PHI stored
HIPAANothing stored unless you email itEvidence-based
What this tool does

The WhiteGloveMD Cardiac Surgery Risk Calculator estimates 30-day surgical mortality using three validated models: STS PROM (Society of Thoracic Surgeons Predicted Risk of Mortality), EuroSCORE II (European System for Cardiac Operative Risk Evaluation), and the AATS multi-endpoint risk estimator. For a comprehensive review by a cardiac surgeon and cardiologist, request a WhiteGlove Insights report →

Three validated risk models, calculated together as you fill in your clinical variables. The STS Predicted Risk of Mortality from the Society of Thoracic Surgeons National Database. EuroSCORE II from Nashef et al. (EJCTS 2012). The AATS Cardiac Risk Calculator with eight perioperative endpoints and frailty-aware modeling. When all three agree, your risk estimate is robust. When they disagree, a Heart Team review is worth getting.

A risk score is a starting point.
An expert review is the full picture.

A WhiteGloveMD Second Opinion goes beyond the calculator: dual-physician Heart Team review, surgeon-specific outcome data, guideline-mapped treatment options, and a complete White Glove Insights™ report — in 24 hours.

Start Your ReviewTake the 2-minute quiz
If Your Number Surprised You

Conditions and treatment decisions behind this score.

An STS PROM, EuroSCORE II, or AATS number is only the start. The decision underneath it — which procedure, which approach, which surgeon — is where second opinions change outcomes.

Aortic Stenosis
Severity, timing, AVR vs TAVR
Coronary Artery Disease
When bypass beats stents
TAVR vs SAVR
Transcatheter or surgical aortic valve
CABG vs PCI
Bypass or stents — by anatomy

Important — Educational Tool Only

This calculator is not a substitute for professional medical advice, diagnosis, or treatment. Results are approximations based on published regression models (STS PROM, EuroSCORE II) and a defensible AATS approximation. Coefficients for AATS are not publicly published; this tool integrates the AATS variable set with logit regression tuned to published mortality observations.

  • Always discuss your case with your treating cardiologist or cardiac surgeon for personalized risk assessment.
  • Your official STS PROM is calculated by your surgical team — visit riskcalc.sts.org for the official tool.
  • No patient data entered into this calculator is stored, transmitted, or used to identify you.