Abstract：Objective To investigate the clinical significance of plane QRS-T angle in acute anterior myocardial infarction. MethodsA total of 115 patients with acute anterior wall myocardial infarction (AMI) were enrolled in the study. All patients underwent routine 12 lead ECG examination, and the plane QRS-T angle was measured. According to the QRS-T angle, the patients were divided into group A(QRS-T angle＞90°) and group B (QRS-T angle≤90°) . The left ventricular ejection fraction(LVEF), serum cardiac troponin T(cTnT), NT-proBNP and the incidence of malignant arrhythmia were compared between the two groups. ResultsLVEF in group A was significantly lower than that in group B(P<0.05), cTnT and NT-proBNP in group A were significantly higher than that in group B(P<0.05). The frequency of ventricular fibrillation(VF), short runs of ventricular tachycardia and ventricular premature beat(VPB) in group A were significantly higher than that in group B(P<0.05). ConclusionThe plane QRS-T angle >90° indicates that the patients have large myocardial infarction area, poor cardiac function and high incidence of malignant arrhythmia. Therefore, we should open blood vessels in time and strengthen medical measures to prevent adverse events.
