9 results
Sgarbossa’s ECG criteria for detecting ischemia in the presence of left bundle branch block (LBBB)

The Sgarbossa
bundle branch block ... be applied to all ... #Diagnosis #Cardiology ... #Discordance #Normal ... #LBBB
Modified Sgarbossa Criteria - Diagnostic Checklist for diagnosing MI in LBBB or Pacemaker
1) Identify LBBB or
- Diagnostic Checklist ... for diagnosing ... - Suspect STEMI ... #Checklist #EKG ... #cardiology #lbbb
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
inversion in avL ... in V1 - normal ... in V1, unless LBBB ... #EKG #diagnosis ... electrocardiogram #cardiology
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
SVT with BBB All ... or LBBB morphology ... QRS complex of normal ... #ekg #cardiology ... #diagnosis #electrocardiogram
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
of the leads l, aVL ... V6 • Sgarbossa criterion ... • Sgarbossa criterion ... #EKG #diagnosis ... #differential #cardiology
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... V1 (Invert III normal ... @AmyChung #EKG ... Electrocardiogram #cardiology ... #diagnosis #system
Normal Sinus Rhythm - ECG Diagnosis
Normal sinus rhythm (NSR) is an impulse that originates in the
- ECG Diagnosis ... recognized by the P wave ... leads III and aVL ... #diagnosis #ekg ... #criteria
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
- Differential Diagnosis ... Framework STEMI ... morphology similar to LBBB ... ST Elevation of Normal ... #cardiology #ecg
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
- Differential Diagnosis ... AFIutter) • P-waves ... Don't rely on criteria ... • Beware AV nodal ... /LBBB or identical