25 results
Knuckle Sign on ECG - Acute Pericarditis

Electrocardiogram of a 68-year-old woman two days after coronary artery
- Acute Pericarditis ... Electrocardiogram ... Note the diffuse ST ... except for the ST ... #ECG #EKG #Electrocardiogram
Left Main Coronary Artery Occlusion on ECG

- aVR ST segment elevation > 1 mm 
- aVR
- aVR ST segment ... elevation > 1 mm - aVR ... ST segment elevation ... > ST segment elevation ... #Electrocardiogram
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
myocardial infarction: ST ... ST elevation in ... • Multilead ST ... ) in WPW: ST elevation ... tachycardia • ST
Pericarditis on EKG
Stage 1 - Widespread ST elevation (<5mm) and PR depression; In aVR: ST depression
Pericarditis on ... ST elevation (< ... depression; In aVR ... : ST depression ... #EKG #ECG #electrocardiogram
De Winter T Wave ECG Pattern 
STEMI Equivalent - Left anterior descending (LAD) occlusion 

1) Upsloping
Winter T Wave ECG ... 1) Upsloping ST ... elevation in aVR ... (>= 1 mm) 2) ST ... #EKG #Electrocardiogram
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
0.5mm downgoing ST ... line; upsloping ST ... vessel disease - ST ... - R/S >1 or ST ... #electrocardiogram
Typical ECG changes in acute pericarditis includes: stage 1 - diffuse, positive, ST elevations with reciprocal
in acute pericarditis ... diffuse, positive, ST ... with reciprocal ST ... depression in aVR ... normalization of ST
De Winter's T Waves

Concerning for proximal LAD occlusion (Present in 2% of patients)
 • Upsloping ST-Depression
• Upsloping ST-Depression ... V1-V4 without STE ... in lead aVR ± aVL ... #ECG #diagnosis ... #cardiology #electrocardiogram
De Winter T-Waves on EKG
 - Anterior OMI
 - 2% of left anterior descending occlusions
 -
STEMI - look for ST ... elevation in aVR ... waves - Upsloping ST ... segment - ST depression ... #ECG #Electrocardiogram
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... depression Pericarditis ... depression in aVR ... diagnosis #cardiology #ecg ... #ekg #electrocardiogram