1001 results
Knuckle Sign on ECG - Acute Pericarditis

Electrocardiogram of a 68-year-old woman two days after coronary artery
Pericarditis Electrocardiogram ... depression in aVR ... depression in I, II and aVL ... knuckle’ sign) in aVR ... Pericarditis #ECG #EKG #Electrocardiogram
Myocardial infarction localization. A 12 lead EKG creates a 360 degree view of the electrical activity
perspective: II, III & aVL ... inferior leads), I & aVL ... as you can see aVR ... contiguous I, aVL ... #EKG #diagram #Electrocardiogram
Left Anterior Fascicular Block on EKG
 • Left axis deviation (LAD) (-45 degrees to -90 degrees)
in leads I and aVL ... leads II, Ill, aVF ... cardiology #EKG #ECG #Electrocardiogram
Normal Sinus Rhythm - ECG Diagnosis
Normal sinus rhythm (NSR) is an impulse that originates in the
leads I, II and aVF ... • inverted in aVR ... leads III and aVL ... diagnosis #ekg #ecg #electrocardiogram
De Winter's T Waves

Concerning for proximal LAD occlusion (Present in 2% of patients)
 • Upsloping ST-Depression
• STE in lead aVR ... ± aVL #DeWinters ... diagnosis #cardiology #electrocardiogram
High Lateral STEMI - D1 of LAD

There is transmural injury isolated to I & aVL. These
isolated to I & aVL ... Diagonal1 #ECG #EKG #Electrocardiogram
Mid Left Circumflex STEMI on ECG

This patient who had cp for 1 hour had a 100%
in leads 1 and avl ... STEMI #ECG #EKG #Electrocardiogram
Progression of EKG changes in Acute Coronary Syndrome (ACS)
Hyperacute T waves:
 • Broad-based and symmetrical, usually
normally inverted in aVR ... In leads l, I, aVL ... , aVF, or V4-V6 ... Progression #diagnosis #electrocardiogram
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
depression in aVR ... , not in aVL • ... , not in aVL, when ... lateral leads (I, aVL ... cardiology #ecg #ekg #electrocardiogram
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
leads with STE in avR ... inversion - STE avR ... wave inversion in avL ... EKG #diagnosis #electrocardiogram