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Morphological Criteria for Discriminating Ventricular Tachycardia from Supraventricular Tachycardia with Aberration

Source Article: Wide Complex Tachycardia –
Supraventricular Tachycardia ... : Wide Complex Tachycardia ... – Ventricular Tachycardia ... Cardiology #ECG #EKG #Electrocardiogram ... #VTach #SVT #Differences
Wide Complex Tachycardia - ECG Definition and Causes
 • Wide Complex Tachycardia (WCT) is a cardiac
Wide Complex Tachycardia ... (VT) (~80%) • ... (SVT) - with ... Ventricular pacing • Electrocardiogram ... cardiology #ekg #ecg #electrocardiogram
Supraventricular Tachycardia EKG

Here’s a great ECG case of a 50-year-old lady who presented with palpitations

Her heart
Supraventricular Tachycardia ... consistent with SVT ... EM_RESUS #AVRT #SVT ... Supraventricular #Tachycardia ... #EKG #ECG #Electrocardiogram
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
findings: Sinus tachycardia ... Narrow complex tachycardia ... , AVRT, atrial tachycardia ... tachycardia (SVT ... #leadAVR #ecg #electrocardiogram
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
SVT - Wide Tachycardias ... DDx = VT vs. ... SVT with BBB All ... #VT #VTach #SVT ... cardiology #diagnosis #electrocardiogram
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
w/ BBB (3) SVT ... (1) Sinus tachycardia ... flutter (3) SVTs ... Multifocal atrial tachycardia ... EKG #diagnosis #electrocardiogram
Ventricular Tachycardia - Management Algorithm
Wide Complex Tachycardia: Rate > 100, QRS > 120
DDx: Ventricular tachycardia, SVT
Ventricular Tachycardia ... Wide Complex Tachycardia ... DDx: Ventricular tachycardia ... , SVT with aberrancy ... , SVT iso Na channel
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
Supraventricular Tachycardias ... • Atrial Tachycardia ... Nodal Reentry Tachycardia ... • AV Reentry Tachycardia ... Pathophysiology #SVT
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Tachycardia - Differential ... WPW), AVnRT (ie SVT ... Antidromic AVRT, SVT ... Irregular: Polymorphic VT ... Any irregular SVT
Wide Complex Tachycardia - Differential Diagnosis Algorithm
Irregular
 • Polymorphic VT
    - Torsades
Wide Complex Tachycardia ... Mimickers - SVT ... - V-Paced Tachycardia ... - SVT with ... #WideComplex #Tachycardia