PRECISE-DAPT Score Calculator
Estimate bleeding risk after PCI using the PRECISE-DAPT framework. Enter baseline clinical values to calculate the score and interpretation.
Optional Creatinine Clearance Helper (Cockcroft-Gault)
What is the PRECISE-DAPT calculator?
The PRECISE-DAPT calculator is a bleeding-risk tool designed for people who undergo percutaneous coronary intervention (PCI) and start dual antiplatelet therapy (DAPT). It helps clinicians balance the tradeoff between reducing ischemic events and avoiding major bleeding.
A higher PRECISE-DAPT score suggests higher bleeding risk, which can favor a shorter DAPT duration in many scenarios. A lower score suggests bleeding risk is less dominant, making longer DAPT potentially more acceptable if ischemic risk is elevated.
Inputs used in this precise dapt calculator
1) Age
Bleeding risk generally rises with age. This model gives progressively more points at older ages.
2) Creatinine clearance (CrCl)
Lower kidney function is associated with higher bleeding risk. You can enter CrCl directly or estimate it with the helper above.
3) Hemoglobin
Lower baseline hemoglobin increases risk and therefore adds more points.
4) White blood cell count
Higher WBC can reflect inflammatory burden and contributes additional risk points.
5) Prior spontaneous bleeding
A previous bleeding event is one of the strongest predictors in the score and can substantially increase the total.
How to interpret your score
- < 17: Lower bleeding-risk profile.
- 17–24: Intermediate bleeding risk.
- ≥ 25: High bleeding risk (commonly used threshold for considering shorter DAPT in appropriate patients).
Remember: this is one decision input, not a standalone treatment directive. Ischemic risk, stent context, ACS status, procedural factors, and patient preference still matter.
PRECISE-DAPT vs DAPT score
These tools are related but answer different questions. PRECISE-DAPT focuses on bleeding risk at baseline. The DAPT score is often used later to estimate net benefit or harm from extending therapy beyond standard duration. In practice, teams may use both at different time points.
Quick usage tips
- Use baseline lab values near the time of PCI.
- Verify units (hemoglobin in g/dL, WBC in ×10⁹/L).
- Do not substitute eGFR directly for CrCl without considering method differences.
- Reassess if the patient’s clinical condition changes significantly.
Important clinical note
This page is for education and structured estimation only. It does not provide diagnosis, medical advice, or individualized treatment recommendations. Final decisions on antiplatelet duration should be made by licensed clinicians using current guidelines and full patient context.