39 results
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
: - No RS complexes ... - Very broad complexes ... Capture beats- a QRS complex ... produce a hybrid complex ... onset of the QRS complex
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
Narrow Complex ... Complex - Irregular ... conduction Wide-Complex ... aberrancy Wide-Complex ... #Causes #cardiology
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
Complex Tachycardia ... Rhythm - Wide Complex ... Complex Tachycardia ... Rhythm - Wide Complex ... #cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Complex - Regular ... Complex - Irregular ... Tachycardia - Wide Complex ... aberrancy - Wide Complex ... #causes
VT versus SVT with Aberration - Interpretation Cheat Sheet

Features favouring VT
● Absence of typical RBBB or
dissociation (P and QRS complexes ... beats (hybrid complex ... negative (QS) complexes ... Brugada algorithm ... Aberration #Aberrancy #Comparison
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Diagnosis Framework Narrow-Complex ... block) Regular-Complex ... Antidromic AVRT, SVT ... Differential #Diagnosis #cardiology ... #wide #narrow #
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Narrow Complex Tachycardias ... Complex Tachycardia ... Complex Tachycardia ... differential #diagnosis #causes ... #cardiology
Supraventricular Tachycardia EKG

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

Her heart
’s a great ECG case ... Is it wide or narrow ... complex? ... see that the QRS complexes ... Electrocardiogram #Cardiology
Lead aVR on EKG
Lead aVR can provide some unique insight into 5 different conditions:

 - Acute
overdose - AVRT in narrow ... complex tachycardias ... from SVT with aberrancy ... in wide complex ... #Diagnosis #Cardiology
Tachycardia - Wide vs Narrow Complex, Regular vs Irregular rhythm table

#Diagnosis #Cardiology #EKG #ECG #WideComplex #Narrow
Tachycardia - Wide vs Narrow ... Complex, Regular ... #Diagnosis #Cardiology ... #WideComplex #Narrow ... Irregular #Table #Comparison