35 results
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Atrial Flutter, AVRT ... WPW), AVnRT (ie ... Tachycardia, Antidromic AVRT ... Diagnosis #cardiology #wide
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
Sinus tachycardia, AVNRT ... , Orthodromic AVRT ... tachycardia • Wide ... block, Antidromic AVRT ... Pre-excited SVT • Wide
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
reentry tachycardia (AVRT ... tachycardia ddx: AVNRT ... , AVRT, atrial tachycardia ... suggestive more of AVRT ... tachycardia (SVT) in wide
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... Aflutter • AVNRT ... • AVRT (ie ... aberrancy - Wide ... #causes
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
retrograde) - AVNRT ... , AVRT, Junctional ... differential #diagnosis #causes
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Differential Diagnosis Algorithm ... AFlutter • AVNRT ... /AVRT - Bradyarrhythmia ... Differential #Diagnosis #Algorithm ... #causes
Tachycardia - Differential Diagnosis and Management - Narrow vs Wide, Regular vs Irregular
Narrow - Regular:
Use P
Management - Narrow vs Wide ... deflection not AVRT ... /AVNRT. ... Wide - Regular: ... #narrow #algorithm
Lead aVR on EKG
Lead aVR can provide some unique insight into 5 different conditions:

 - Acute
Lead aVR on EKG ... Lead aVR can provide ... TCA-like overdose - AVRT ... with aberrancy in wide ... EKG #ECG #Lead #AVR
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
• ST vs SVT (AVNRT ... , OAVRT, AFIutter ... whether AF is cause ... Tx: Underlying cause ... Narrow #Irregular #causes
Wolff-Parkinson-White (WPW)
- Orthodromic AVRT: Narrow complex, most common 
- Antidromic AVRT: wide complex because goes through
- Orthodromic AVRT ... - Antidromic AVRT ... : wide complex because