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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
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
Diagnosis - Absent a wave ... fibrillation, sinus tachycardia ... - Flutter waves ... - Prominent a waves ... dissociation, ventricular tachycardia
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
Multifocal Atrial Arrhythmias on ECG
Multifocal atrial rhythm & Multifocal atrial tachycardia
ECG Recognition:
 • Variable P wave
Multifocal atrial tachycardia ... • Variable P wave ... The change in P wave ... • Some P waves ... atrial #rhythm #tachycardia
Ventricular Fibrillation
• Completely disorganized 
• Immediate cessation of cardiac output, no associated pulse 
• No discernible
discernible P waves ... complexes, or T waves ... Diagnosis #Cardiology #Tachycardia
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
replaced by T wave ... interval J Wave ... - Prolonged R wave ... block; and sinus tachycardia ... /Osborne 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
Ventricular Tachycardia in Wide Complex Tachycardia - Telemetry Diagnosis
 • Lead V1 - LBBB Criteria
 •
Ventricular Tachycardia ... in Wide Complex Tachycardia ... • Lead II - R-Wave ... #Ventricular #Tachycardia
Hallmark ECG features of Ventricular Tachycardia (VT)
AV indicates atrioventricular; LAD, left axis deviation; LBBB, left bundle
of Ventricular Tachycardia ... block; RWPT, R wave ... , wide complex tachycardia ... #Ventricular #Tachycardia
LBBB Ventricular Tachycardia Criteria - Lead V1 - Telemetry Diagnosis
WCT is VT IF:
 • Initial r
LBBB Ventricular Tachycardia ... • Initial r wave ... #Ventricular #Tachycardia