Abstract
Various ECG patterns can help determine the location of the occluded coronary artery and the extent of threatened myocardium. The reported positive predictive value for de Winter ECG in predicting acute left anterior descending artery occlusion is inconsistent. Additionally, the morphology of ST depression and other ECG findings may have varying degrees of severity and prognostic significance. This case demonstrates the importance of integrating multiple ECG findings, such as ST elevation, Q waves, and the R/S ratio, with the location of the de Winter pattern on various ECG leads to accurately predict the culprit artery and assess the anatomical extent of myocardial ischemia.
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