First identified in 2008 by Dr. DeWinter - characteristic pattern in 30 of his 1532-patient database of anterior MI
2% of proximal LAD occlusions will have this presentation
Represents an acute proximal occlusion (unlike Wellen's sign which represents a subacute process)
Proposed STEMI-equivalent
De Winter's T waves
MI 
T wave changes
Hyperkalemia
AVR ST elevation
Benign Early Repolarization
R-wave in V1
De Winter's T waves 