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De Winter T Wave ECG Pattern 
STEMI Equivalent - Left anterior descending (LAD) occlusion 

1) Upsloping
Equivalent - Left anterior ... 1) Upsloping ST ... elevation in aVR ... (>= 1 mm) 2) ST ... #DeWinter #TWaves
De Winter T-Waves on EKG
 - Anterior OMI
 - 2% of left anterior descending occlusions
 -
on EKG - Anterior ... - 2% of left anterior ... elevation in aVR ... - Upsloping ST ... FOAMfrat #DeWinter #TWaves
Myocardial infarction localization. A 12 lead EKG creates a 360 degree view of the electrical activity
view the inferior ... heart (inferior ... as you can see aVR ... over the anterior ... and are called anterior
De Winter's T-waves in precordial leads and ST elevation in inferior leads.  There are already
elevation in inferior ... supplying the inferior ... addition to the anterior ... #Clinical #EM #Cardiology ... EKG #DeWinter #TWaves
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
(in inferior leads ... in aVR Poor R wave ... progression ST ... Septal (V1-2) • Anterior ... , V5-6) • Inferior
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
elevation in aVR ... sign A - Biphasic anterior ... Deeply inverted anterior ... asymmetrical, broad-based anterior ... inversions in the anterior
ECG of a 55-year-old man who presented to the ER with chest pain 
Computer interpretation: “Nonspecific
and T wave abnormality ... & aVF 2. ... Hyperacute Inferior ... Biphasic T-wave ... Q-wave in III, early
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
- hyperacute T waves ... in avR - Wellen's ... avR - proximal ... inversion in avL ... - early inferior
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
depression in aVR ... , not in aVL • ... depression in aVR ... , not in aVL, when ... anteroseptal and inferior
Left Anterior Fascicular Block on EKG
 • Left axis deviation (LAD) (-45 degrees to -90 degrees)
Left Anterior Fascicular ... with tall R waves ... in leads I and aVL ... leads II, Ill, aVF ... #LAFB #Left #Anterior