Cardiology
Duke Treadmill Score (DTS)
Estimates prognosis and severity of coronary artery disease.
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Parameters
Duke Treadmill Score (DTS) Result
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Formula
Score = Exercise Time (mins) - (5 × Max ST Deviation [mm]) - (4 × Angina Index)Clinical Pearls
Provides a standardized, validated method to translate a stress test report into a quantitative risk category, aiding in the decision to proceed to cardiac catheterization.
Limitations
Only valid for the standard Bruce protocol. Less accurate in patients > 75 years old, women, and those with baseline ECG abnormalities (e.g., LBBB, LVH).