Özet:

Purpose: The purpose of this study is to study the value of ST-Elevation in lead III in patients with primary percutaneous coronary initiative with acute inferior myocardial infarction in the prediction of right ventricular myocardial infarction and hospital mortality in lead II. Method: 180 patients with acute inferior myocardial infarction caused by the right coronary artery and going to the primary percutaneous coronary initiative were taken to study. Right ventricular myocardial infarction was identified with ST-elevation in V4R in the right-trapped ECG. Patients with ST-elevation in V4R were divided into two groups as patients with acute inferior myocardial infarction with no right ventricular myocardial infarction, patients with STelevation in V4R were divided into two groups as patients with acute inferior myocardial infarction with a right ventricular myocardial infarction. The ST- elevation in lead III was considered to be higher than the ST-elevation in lead II for the determination of right ventricular infarction and for the forecast of hospital mortality. Results: Lead III>II ST-elevation was observed in patients with right ventricular myocardial infarction with a higher rate (p<0.001). In the multivariate regression analysis, the lead III>II ST-elevation was observed as an independent predictor of the right ventricular myocardial infarction (odds ratio: 2.8.95% CI 1.55-5.25; p=0.008). However, the prognosis on hospital mortality was not observed. Result: In patients with acute inferior myocardial infarction caused by the right coronary artery, lead III>II ST-elevation is an independent predictor of the right ventricular myocardial infarction. However, there is no prediction of hospital mortality. ABSTRACT Objectives: The aim of this study was to evaluate ST-elevation in lead III more than II (III>II) findings in predicting right ventricular infarction (RVI) and in-hospital mortality in patients with acute inferior myocardial infarction (AIMI) undergoing primary percutaneous coronary intervention (pPCI). Methods: A total of 180 AIMI patients undergoing pPCI and right coronary artery (RCA) as infarctrelated artery were included in the study. The presence of RVI was determined by ST-elevation in the right side lead (V4R). Patients were divided into 2 groups: patients without ST-elevation in lead V4R (AIMI without RVI), and patients with ST-elevation in lead V4R (AIMI with RVI). We assessed the diagnostic accuracy of ST-elevation in lead III more than II to identify RVI and predict inhospital mortality. Results: A large proportion of ST-elevation in lead III>II (p=0.001) were observed in patients with RVI. In a multivariate regression analysis, ST-elevation in lead III>II remained an independent predictor of RVI (odds ratio :2.8,95% CI 1.55-5.25; p=0.008). However, this predictive effect was not observed in-hospital mortality. Conclusion: ST-elevation in lead III>II was an independent predictor of RVI in patients with RCA related inferior myocardial infarction undergoing pPCI. However, ST-elevation in lead III>II was not predictor of in-hospital mortality.