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Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Narrow Complex Tachycardias ... Narrow Complex Tachycardia ... 3 different P wave ... Narrow Complex Tachycardia ... Sinus tachycardia
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
Supraventricular Tachycardias ... Ventricle • Sinus Tachycardia ... • Atrial Tachycardia ... Nodal Reentry Tachycardia ... • AV Reentry Tachycardia
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
fibrillation, sinus tachycardia ... - Flutter waves ... - Prominent a waves ... dissociation, ventricular tachycardia ... - Large cv waves
Cannon A Waves on Neck Examination

Cannon a waves! Notice that it occurs randomly, not predictably w/
Cannon A Waves on ... Examination Cannon a waves ... Cannon a waves indicate ... and an atrial tachycardia ... VivekKulkarniMD #CannonA #AWaves
Comparison of Multifocal Atrial Tachycardia, Atrial Fibrillation and Atrial Flutter
Multifocal Atrial Tachycardia - Atrial Rate >
Multifocal Atrial Tachycardia ... Multifocal Atrial Tachycardia ... > 100 1. >3 p wave ... tooth" flutter waves ... discernible P waves
De Winter T Wave ECG Pattern 
STEMI Equivalent - Left anterior descending (LAD) occlusion 

1) Upsloping
De Winter T Wave ... depressions and tall T waves ... #DeWinter #TWaves
EKG showing prominent U waves due to hypokalemia. Serum potassium 2.0. 

#EKG #emergencymedicine #criticalcare #cardiology #internalmedicine
showing prominent U waves ... Electrocardiogram #ECG #UWaves
De Winter's T Waves - Acute Sign of Proximal LAD Occlusion #Diagnosis #Cardiology #EKG #ECG #DeWinters
De Winter's T Waves ... ECG #DeWinters #TWaves
Hypokalaemia:

The gradual fall in serum potassium level is reflected electrocardiographically by the following features:

1. Gradual decrease
disappearance of T wave ... of prominent U waves ... Cardiology #ECG #EKG #UWaves
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
SA node: Sinus tachycardia ... supraventricular tachycardias ... , Focal Atrial Tachycardia ... AV re-entrant tachycardia ... ), Ventricular tachycardia