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Morphological Criteria for Discriminating Ventricular Tachycardia from Supraventricular Tachycardia with Aberration

Source Article: Wide Complex Tachycardia –
Morphological Criteria ... Discriminating Ventricular ... Distinguishing #Criteria ... Cardiology #ECG #EKG #Electrocardiogram ... #VTach #SVT #Differences
Wide Complex Tachycardia - ECG Definition and Causes
 • Wide Complex Tachycardia (WCT) is a cardiac
WQRST Causes: • Ventricular ... Supraventricular tachycardia (SVT ... imbalance • Ventricular ... pacing • Electrocardiogram ... #definition #differential
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
elevation: Differential ... Differentiating ventricular ... supraventricular tachycardia (SVT ... than Brugada criteria ... #leadAVR #ecg #electrocardiogram
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Tachycardia - Differential ... WPW), AVnRT (ie SVT ... Regular-Complex: • Ventricular ... Any irregular SVT ... #Tachycardia #Differential
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Arrhythmias - Differential ... Escape Rhythm • Ventricular ... • Premature ventricular ... Regular Rhythm SVT ... tachyarrhythmias #Cardiology #Differential
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
Tachycardia - Differential ... • Monomorphic ventricular ... • Polymorphic ventricular ... de pointes • Ventricular ... #Tachycardia #Differential
RBBB Ventricular Tachycardia Criteria - Lead V1 - Telemetry Diagnosis
WCT is VT IF:
 • R >
RBBB Ventricular ... Tachycardia Criteria ... Diagnosis WCT is VT ... QRS #RBBB #Ventricular ... Tachycardia #WCT #VTach #Criteria
VT versus SVT with Aberration - Interpretation Cheat Sheet

Features favouring VT
● Absence of typical RBBB or
VT versus SVT with ... Features favouring VT ... sinus beat and a ventricular ... Morphology criteria ... VentricularTachycardia #SVT
Electrocardiographic Features of Digoxin Toxicity
 • Virtually any arrhythmia is possible. None specific for digoxin toxicity
associated combine some SVT ... automaticity) with slow ventricular ... " or "sagging" ST ... digitalis #Toxicity #Electrocardiogram
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
SVT - Wide Tachycardias ... SVT with BBB All ... - a sinus and ventricular ... #VT #VTach #SVT ... cardiology #diagnosis #electrocardiogram