245 results
Wolff–Parkinson–White syndrome (WPW) is one of several disorders of the electrical system of the heart that
Wolff–Parkinson–White syndrome (WPW ... WPW is caused by ... supraventricular tachycardia ... reciprocating tachycardia ... MedStudent #EKG #WPW
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Tachycardia - Differential ... Regular: Sinus Tachycardia ... , Junctional Tachycardia ... , Atrial Tachycardia ... WPW), AVnRT (ie
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
findings: Sinus tachycardia ... (AVRT) in WPW: ... Narrow complex tachycardia ... , AVRT, atrial tachycardia ... more of AVRT in WPW
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
Tachycardia - Differential ... Narrow Complex Tachycardia ... - Wide Complex Tachycardia ... Narrow Complex Tachycardia ... • HyperK vs AF+WPW
Treatment of Stable Wide-Complex Tachycardia
Regular
 • If ventricular tachycardia or uncertain rhythm:
    -
Stable Wide-Complex Tachycardia ... If ventricular tachycardia ... with AF (AF + WPW ... polymorphic ventricular tachycardia ... #WideComplex #Tachycardia
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
• Sinus Tachycardia ... Ectopic Atrial Tachycardia ... WPW) - Narrow ... Multifocal Atrial Tachycardia
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
abberancy - N B Afib + WPW ... (1) Sinus tachycardia ... Multifocal atrial tachycardia ... Wong @mchlwng #Tachycardia
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
flutter, or atrial tachycardia ... • Bradycardia-tachycardia ... Supraventricular tachycardia ... • Ventricular tachycardia ... (VT/Vfib/Afib/WPW
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
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Narrow Complex Tachycardias ... Narrow Complex Tachycardia ... Multifocal Atrial Tachycardia ... Narrow Complex Tachycardia ... Sinus tachycardia