De Winter's T-waves is a rarely reported electrocardiogram (ECG) pattern requiring watchful eyes to recognize it. It was described as static sign until coronary reperfusion. This pattern was on average recorded 1.5 hours after symptom onset. It was considered as à ST-Elevated Myocardial infarction (STEMI) equivalent pattern. We report a dynamic De Winter pattern who attended one hour of the onset of chest pain with rapid ECG changes before reperfusion.
