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Morphological Criteria for Discriminating Ventricular Tachycardia from Supraventricular Tachycardia with Aberration

Source Article: Wide Complex Tachycardia –
Morphological Criteria ... Tachycardia #Aberration #Aberrancy ... #EKG #Electrocardiogram ... #VTach #SVT #Differences ... #Comparison #Brugada
Ventricular Tachycardia in Wide Complex Tachycardia - Telemetry Diagnosis
 • Lead V1 - LBBB Criteria
 •
Ventricular Tachycardia ... V1 - RBBB Criteria ... RWPT) • Lead aVR ... Tachycardia #WCT #VTach ... #ekg #ecg #telemetry
RBBB Ventricular Tachycardia Criteria - Lead V1 - Telemetry Diagnosis
WCT is VT IF:
 • R >
RBBB Ventricular ... is VT IF: • R ... Tachycardia #WCT #VTach ... #Criteria #V1 # ... #ekg #ecg #telemetry
LBBB Ventricular Tachycardia Criteria - Lead V1 - Telemetry Diagnosis
WCT is VT IF:
 • Initial r
LBBB Ventricular ... is VT IF: • Initial ... Tachycardia #WCT #VTach ... #Criteria #V1 # ... #ekg #ecg #telemetry
VT versus SVT with Aberration - Interpretation Cheat Sheet

Features favouring VT
● Absence of typical RBBB or
sinus beat and a ventricular ... Morphology criteria ... #VTach #VentricularTachycardia ... #Aberrancy #Comparison ... #Diagnosis #Cardiology
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 ... #VT #VTach #SVT ... #cardiology #diagnosis
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... • Classic EKG ... Differentiating ventricular ... supraventricular tachycardia (SVT ... #ekg #differential
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
elevation in aVR ... V6 • Sgarbossa criterion ... • Sgarbossa criterion ... #EKG #diagnosis ... #differential #
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
w/ BBB (3) SVT ... w/ abberancy - ... block - ventricular ... #EKG #diagnosis ... electrocardiogram #cardiology #differential
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Elevation - Differential ... Diagnosis Framework ... depression in aVR ... V5-6 • Left Ventricular ... #ecg #ekg #electrocardiogram