189 results
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Atrial Flutter, AVRT ... WPW), AVnRT (ie ... SVT) • Irregular ... w/aberrancy • Irregular ... #wide #narrow #irregular
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
Sinus tachycardia, AVNRT ... , Orthodromic AVRT ... • Narrow QRS - Irregular ... block, Antidromic AVRT ... • Wide QRS - Irregular
Tachycardia - Differential Diagnosis and Management - Narrow vs Wide, Regular vs Irregular
Narrow - Regular:
Use P
vs Irregular Narrow ... deflection not AVRT ... /AVNRT. ... Wide - Irregular ... narrow #algorithm #irregular
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Simplified) Irregular ... A regular rhythm ... conduction Regular ... retrograde) - AVNRT ... , AVRT, Junctional
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Aflutter • AVNRT ... • AVRT (ie ... Narrow Complex - Irregular ... Wide Complex - Irregular ... long QT) • Irregular
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
vs Irregular ... • ST vs SVT (AVNRT ... , adenosine Irregular ... Rhythm control Irregular ... #Wide #Narrow #Irregular
Supraventricular Tachycardia (SVT) - Differential Diagnosis Framework and Management

Regular SVT: Sinus Tachycardia, AVNRT, AVRT, Atrial Flutter,
Management Regular ... Sinus Tachycardia, AVNRT ... , AVRT, Atrial Flutter ... Ectopic Junctional Irregular
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Narrow-Complex Tachycardia Regular ... Converts - Probably AVnRT ... or AVRT - Observe ... underlying cause Irregular
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
• Rapid and regular ... • Rapid and irregular ... maneuvers: SVT-AVNRT ... or AVRT • Standing ... bending over: AVNRT
Comparison of Multifocal Atrial Tachycardia, Atrial Fibrillation and Atrial Flutter
Multifocal Atrial Tachycardia - Atrial Rate >
Irregularly irregular ... Irregular P-P intervals ... Regular PP intervals ... Regular or irregular ... Irregularly irregular