15 results
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 ... Differentiating ventricular ... supraventricular tachycardia (SVT
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
elevation in aVR ... • Sgarbossa criterion ... #EKG #diagnosis ... #differential # ... cardiology #electrocardiogram
De Winter T Wave ECG Pattern 
STEMI Equivalent - Left anterior descending (LAD) occlusion 

1) Upsloping
Pattern STEMI ... 1) Upsloping ST ... elevation in aVR ... (>= 1 mm) 2) ST ... #Criteria
Here’s an ECG of a patient with 100% Acute LAD Occlusion

Remember that RBBB normally has ST
RBBB normally has ST ... Depression in V1 ... So ANY ST Elevation ... an isolectric ST ... STEMI Criteria misses
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 ... Interpretation #differential
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Elevation - Differential ... Diagnosis Framework STEMI ... depression in aVR ... #STEMI #Segment ... #ecg #ekg #electrocardiogram
There is inferior ST elevation with reciprocal ST depression in aVL and  in lead I,
There is inferior ST ... with reciprocal ST ... depression in aVL ... ) with ST elevation ... #EKG #STEMI #Inferior
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
or negative) in V1 ... is positive in aVR ... - a sinus and ventricular ... #Comparison #VentricularTachycardia ... #Versus #ecg #ekg
VT versus SVT with Aberration - Interpretation Cheat Sheet

Features favouring VT
● Absence of typical RBBB or
sinus beat and a ventricular ... leads, i.e. leads V1 ... Morphology criteria ... Aberration #Aberrancy #Comparison ... #Diagnosis #Cardiology
Modified Sgarbossa Criteria - Diagnostic Checklist for diagnosing MI in LBBB or Pacemaker
1) Identify LBBB or
(deep S waves V1 ... Discordance" = ST ... - Suspect STEMI ... Diagnosis #Checklist #EKG ... #cardiology #lbbb