Updated Review of the Emergency Department Assessment of Chest Pain Score (EDACS)

Q: What is the clinical evidence from this study?

Study design: Review. Population: Chest pain / possible acute coronary syndrome. Intervention: Emergency Department Assessment of Chest Pain Score (EDACS) and EDACS-ADP vs. Other chest pain scores (e.g., HEART score, ADAPT-ADP). Primary outcome: Major adverse cardiac events (MACE).

Rahul Aggarwal

doi:10.65357/001c.153941

March 16, 2026Evidence to Action Official Journal of MDCalc

Updated Review of the Emergency Department Assessment of Chest Pain Score (EDACS)

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Key result

EDACS plus ADP safely identifies ~45% of patients as low risk with near-perfect MACE sensitivity.

Why the study?

Does the EDACS-ADP safely identify low-risk chest pain patients for early discharge in the emergency department?

Key Points

Summarize validation evidence and clinical utility for the Emergency Department Assessment of Chest Pain Score (EDACS) and its accelerated diagnostic protocol in identifying low-risk chest pain patients eligible for safe early discharge.
Reviewed derivation, prospective validation, and meta-analytic studies evaluating EDACS combined with an accelerated diagnostic protocol (EDACS-ADP).
Evaluated protocol criteria requiring EDACS <16, non-ischemic electrocardiogram, and negative serial troponin measurements at 0 and 2 hours across emergency department cohorts.
In original derivation and validation cohorts, EDACS-ADP demonstrated 99–100% sensitivity for major adverse cardiac events and classified approximately 45% of patients as low risk.
A 2021 meta-analysis of 11,578 patients demonstrated a pooled sensitivity of 96% and specificity of 61%, with fewer than 1% of low-risk patients experiencing 30-day major adverse cardiac events.
In a 118,822-patient health system study, original EDACS classified 60.8% of patients as low risk with >99% negative predictive value, compared with 51.8% for the HEART score.

Structured PICO

Does the EDACS-ADP safely identify low-risk chest pain patients for early discharge in the emergency department?

P

Population

Patients with chest pain or other anginal symptoms requiring evaluation for possible acute coronary syndrome in the emergency department

I

Intervention

Emergency Department Assessment of Chest Pain Score (EDACS) combined with the accelerated diagnostic protocol (ADP)

C

Comparator

Other ACS clinical decision scores (e.g., HEART score, ADAPT-ADP) or usual care

O

Outcome

Major adverse cardiac events (MACE), defined as ST-elevation or non-ST-elevation MI, need for emergency revascularization, death from cardiovascular causes, ventricular arrhythmia, cardiac arrest, cardiogenic shock, or high atrio-ventricular blockcomposite

The EDACS-ADP is a highly sensitive clinical decision tool that safely identifies a large proportion of emergency department chest pain patients as low risk, supporting safe early discharge.

Limitations

Places substantial weight on age, making it less likely for older adults to be classified as low-risk
Paradoxical decrease in predicted risk after the cutoff age of 50 years
Relies on consistent application of serial troponin testing

Implication

Supports safe early discharge in 45-50% of ED chest pain patients; reinforces EDACS-ADP as high-sensitivity MACE rule-out tool.

Abstract

The Emergency Department Assessment of Chest Pain Score (EDACS) was developed to identify low-risk chest pain patients who could be safely discharged after a short evaluation. In the original derivation and validation study (Than 2014), EDACS combined with the accelerated diagnostic protocol (ADP) achieved 99–100% sensitivity for major adverse cardiac events (MACE) and identified approximately 45% of patients as low risk. The tool has been validated across multiple settings, demonstrating very high sensitivity and negative predictive value for major adverse cardiac events while identifying a larger proportion of patients as low risk compared with other commonly used chest pain scores. This makes EDACS a valuable rule-out tool that supports safe early discharge when incorporating troponin and ECG data.

Discussion

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Cite This Study

Rahul Aggarwal (2026) conducted a review in Chest pain / possible acute coronary syndrome. Emergency Department Assessment of Chest Pain Score (EDACS) and EDACS-ADP vs. Other chest pain scores (e.g., HEART score, ADAPT-ADP) was evaluated on Major adverse cardiac events (MACE). The EDACS combined with the accelerated diagnostic protocol achieved 99-100% sensitivity for major adverse cardiac events and safely identified approximately 45% of patients as low risk.

synapsesocial.com/papers/69ba44084e9516ffd37a5dd4 https://doi.org/10.65357/001c.153941

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Updated Review of the Emergency Department Assessment of Chest Pain Score (EDACS)

Key Points

Structured PICO

Limitations

Implication

Abstract

Discussion

Cite This Study

Updated Review of the Emergency Department Assessment of Chest Pain Score (EDACS)

Key Points

Structured PICO

Limitations

Implication

Abstract

Discussion

Cite This Study

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