Clinical Implication of Precordial ST Segment Depression in Acute Inferior Myocardial Infarction

Objective To evaluate the clinical value of precordial ST segment depression in acute inferior myocardial(AIMI).Methods ECG on admission of 36 AIMI patients and their selected coronary angiography(SCA) performed after 2～3 weeks were analyzed, in order to identify the interrelationship between precordial ST segment depression in AIMI and right coronary artery(RCA) lesions,multivessel lesions.Results Diseased vessels in AIMI involved mostly with RCA.Precordial ST segment depression was noted in 14 involved mostly with RCA. Precordial ST segment depression was noted in 14 cases(70%),and normal precordial ST segment was noted in 14 cases(75%), Multivessel lesions in AIMI patients with precordial ST segment depression were more than that with precordial ST segment normal(65% V 25%).Conclusion Precordial ST segment depression in AIMI is associated with multivessel lesions or larger infarction area. Active treatment should be adopted.