DeWinter's T Waves

DeWinter's T waves are a variant of hyperacute T waves (occasionally called a STEMI equivalent) due to occlusion of the LAD and, therefore, are found only in the anterolateral leads. It is a very rare finding in anterior OMI's, but is still under-recognized. This pattern may or may not evolve into a typical OMI on EKG.

The anterior leads show upsloping ST depressions (>1mm) into a hyperacute T wave without ST elevations.  Patients also have subtle ST elevations in aVR.

Examples:

Further Reading:

https://litfl.com/de-winter-t-wave-ecg-library/

http://hqmeded-ecg.blogspot.com/search/label/de%20Winter%27s%20T-waves