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Background: Global Longitudinal Strain (GLS) is a sensitive measurement and has been studied as a parameter to assess myocardial deformity and had a prognostic value in STEMI patient, but this measurement is usually taken at echocardiography laboratory with software installed only, a simple parameter of systolic function that had been known is EPSS, the aim of this study is to determine the prognostic value of this simple parameter as a surrogate marker of myocardial deformity for mayor adverse cardiac event (MACE). Methods: This is an analytic observational study using ambispective cohort study, basic and echocardiographic data were collected from 66 adult subjects of acute STEMI from July 2016 until April 2017. Each subjects were followed-up for MACE (mortality, heart failure, ventricular arrhytmia and cardiogenic shock) 30 days since admission. Cut off point were taken from ROC curve. Statistical analysis test were used to examine the association between two variables and obtained odds ratio (OR) for EPSS. To obtain the degree of relationship between EPSS and GLS we were using corelation test with the value of p<0.05 was considered statistically significant. Result: In this study the optimum cut off value for EPSS was 7 mm with sensitivity and specificity of 72% and 71%, respectively. Bivariate analysis showed among EPSS >7 mm and GLS >-10,6% were associated with MACE in 30 days after STEMI. In multivariate analysis, GLS >-10,6% (OR 10,6 95%IK 2,5-44,7 p=0,001) and EPSS >7 mm (OR 5, 95%IK 1,12-22,56 p=0,035) remained significantly associated and had 83% probability for MACE in 30-days after STEMI. Using the corelation test we found that EPSS had a stronger relationship with GLS (r=0,795, p<0,001). Conclusion: Our data show that EPSS >7 mm had a strong relationship with myocardial deformity parameter and appears to be a strong predictor for MACE in 30-days after acute STEMI. Therefore, it can be taken earlier to help the cardiologist in emergency unit for futher appropriate management planning.

E-Point Septal Separation as a Surrogate Marker for Global Longitudinal Strain in Predicting MACE after ST Elevation Myocardial Infarction