Abstract

Introduction: Patients with non-ST-elevation acute coronary syndrome (NSTE-ACS) should undergo risk stratification as soon as possible after their presentation. Early risk satisfaction provides good prognosis for patients as well as better decision for reperfusion therapy. The aim of this study is to find a correlation between the Global Registry of Acute Coronary Events (GRACE) risk score and severity of coronay artery disease assessed by Gensini score score and compare the value of GRACE and Gensini scores in predicting the long-term outcomes in patients with NSTE-ACS.
 Methods: A total of 220 patients with NSTE-ACS who underwent coronary angiography were enrolled in our study. The Gensini score was used to assess the severity of coronary artery disease. According to the GRACE score, the patients were grouped into low, intermediate and high groups. After 30 months of follow-up, 20 patients died.
 Results: The mean Gensini scores were 11.8 ± 11.5, 27.4 ± 30.9, and 42.9 ± 29.7 in the low, intermediate and high-risk groups, respectively. The GRACE scores and Gensini score had a moderate positive correlation (rho = 0.522, p < 0.001). The survival rates showed a less rapid deterioration from the low to high GRACE groups (P = 0.013) than when classified according to their Gensini tertiles (P = 0.02). Area under the ROC curve was statistically significant for both scores, but area of the GRACE risk score (0.71; 95% Cl = 0.60 - 0.82) was higher than that the Gensini risk score (0.66; 95% Cl = 0.53 – 0.80).
 Conclusion: Our study revealed that the Gensini score had a positive and significant relationship with the GRACE score in patients with NSTE-ACS. The GRACE score had a more value in predicting long-term outcomes in patients with NSTE-ACS.

Highlights

  • Patients with non-ST-elevation acute coronary syndrome (NSTE-ACS) should undergo risk stratification as soon as possible after their presentation

  • Our study revealed that the Gensini score had a positive and significant relationship with the Global Registry of Acute Coronary Events (GRACE) score in patients with NSTE-ACS

  • The linear regression between GRACE and Gensini angiographic scores shows a moderate correlation between the two scores, which indicates that the GRACE score can be used to predict coronary artery disease (CAD) severity, but only in the presence of other risk factors, and especially with the high-risk groups (r = 0.522, p < 0.001) (Figure 2)

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Summary

Introduction

Patients with non-ST-elevation acute coronary syndrome (NSTE-ACS) should undergo risk stratification as soon as possible after their presentation. The aim of this study was to find a correlation between the Global Registry of Acute Coronary Events (GRACE) risk score and severity of coronary artery disease assessed by Gensini score, and to compare the values of the GRACE and Gensini scores in predicting the long-term outcomes of patients with NSTE-ACS. Our study revealed that the Gensini score had a positive and significant relationship with the GRACE score in patients with NSTE-ACS. Several metrics for risk factors have been associated with the development of atherosclerosis and its clinical consequences (including NSTEMI) The relationship between these risk factors and in-hospital mortality has been evaluated by several previous studies. There are some non-modifiable risk factors such as age, gender, and family history of coronary heart diseases (CHD) 6,7

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