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External validation of the GRACE Freedom from Events score

Anne-Maree Kelly1, Prashant Dabee, Sharon Klim

  • 1Joseph Epstein Centre for Emergency Medicine at Western Health, Sunshine Hospital, Furlong Road, St Albans 3021, Australia. anne-maree.kelly@wh.org.au

Heart, Lung & Circulation
|June 20, 2012
PubMed

Insights

The GRACE Freedom-from-Event Score (GFFES) accurately identifies low-risk acute coronary syndrome patients, showing no major adverse cardiac events in this group. This score is a valuable tool for risk stratification in cardiology.

Area of Science:

  • Cardiology
  • Clinical Risk Prediction

Background:

  • Acute coronary syndrome (ACS) presents a significant threat, yet most patients have a low risk of adverse events.
  • The GRACE Freedom-from-Event Score (GFFES) was developed in 2005 to identify low-risk ACS patients.

Purpose of the Study:

  • To externally validate the predictive performance of the GFFES in a real-world clinical setting.
  • To assess the GFFES's ability to identify patients at low risk for major adverse cardiac events (MACE).

Main Methods:

  • A prospective observational cohort study included 238 patients admitted with chest pain, unstable angina, or myocardial infarction (MI).
  • Data on clinical factors and investigations were collected.
  • Major adverse cardiac events (MACE) were defined as death, new MI, stroke, and other severe complications during index admission. Predictive performance was analyzed using ROC curves.

Main Results:

  • 32.8% of patients were classified as low risk (GFFES score ≥287).
  • No MACE occurred in the low-risk group.
  • The GFFES demonstrated good predictive performance with an AUC of 0.74, 100% sensitivity, and 100% negative predictive value for MACE.

Conclusions:

  • The GFFES showed good discrimination, sensitivity, and negative predictive value in this external validation.
  • The score may serve as a useful tool for risk-based patient management and care allocation in ACS.
  • Further multi-center validation could strengthen its clinical utility.
Abstract

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