203 results
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
Supraventricular Tachycardias ... through SA Node, Atrium ... • Atrial Tachycardia ... • Atrial Flutter ... • Atrial Fibrillation
Comparison of Multifocal Atrial Tachycardia, Atrial Fibrillation and Atrial Flutter
Multifocal Atrial Tachycardia - Atrial Rate >
Tachycardia, Atrial ... Flutter Multifocal ... Atrial Tachycardia ... - Atrial Rate > ... Flutter - Atrial
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Atrial fibrillation ... Multifocal Atrial ... Tachycardia (MAT ... Atrial flutter ... (Ectopic) Atrial
Typical (Counterclockwise) and Reverse Typical (Clockwise) Atrial Flutter on EKG
Typical (Counterclockwise) Atrial Flutter
 • Inferior leads:
Typical (Clockwise) Atrial ... Flutter on EKG ... Counterclockwise) Atrial ... Typical (Clockwise) Atrial ... Counterclockwise #Atrial
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
Atrial flutter ... • Atrial tachycardia ... Irregular: • Atrial ... • Multifocal atrial ... Atrial flutter
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Atrial Contractions ... (PACs), Atrial ... Flutter (AFL), Atrial ... (PST), Focal Atrial ... ), Multifocal Atrial
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
Orthodromic AVRT, Atrial ... Tachycardia, Atrial ... Irregular Rhythm: Atrial ... fibrillation, Atrial ... , Atrial fibrillation
Counterclockwise and (Left) vs Clockwise (Right) Flutter
Typical atrial flutter is counterclockwise in direction and originates from
Typical atrial ... causing clockwise atrial ... Atypical atrial ... appearance on ECG ... #Diagnosis #ECG
Atrial Flutter on EKG
 • Regularly-occurring atrial activity
 • ≥ 240 atrial depolarizations (i.e. flutter waves)
Atrial Flutter on ... atrial activity ... • ≥ 240 atrial ... EricsMedicalLectures/ #Atrial ... #ecg #ekg #electrocardiogram
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
, Atrial Tachycardia ... , Atrial Flutter ... • Irregular: Atrial ... Fibrillation, Multifocal Atrial ... ), Atrial Flutter