59 results
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... • Classic EKG ... , atrial tachycardia ... tachycardia (SVT ... #AVR #leadAVR #ecg
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
- Pathophysiology ... • Atrial Tachycardia ... AV Reentry Tachycardia ... #SVT #diagnosis ... #cardiology #conduction
Lead aVR on EKG
Lead aVR can provide some unique insight into 5 different conditions:

 - Acute
Lead aVR on EKG ... narrow complex tachycardias ... from SVT with aberrancy ... #Diagnosis #Cardiology ... #EKG #ECG #Lead
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Tachycardia - Differential ... , Atrial Tachycardia ... , AVRT (ie. ... , Antidromic AVRT ... Diagnosis #cardiology
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
AVNRT, Orthodromic AVRT ... , Atrial Tachycardia ... , SVT with bundle ... , Pre-excited SVT ... Diagnosis #cardiology
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... Tachycardia (MAT ... #Tachycardia #MAT ... #Cardiology #Diagnosis ... #ECG #EKG #Management
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Anatomical Differential ... (AVRT), AV nodal ... VT (i.e. ... Arrhythmias #Anatomical #Differential ... Diagnosis #Causes #cardiology
Supraventricular Tachycardia EKG

Here’s a great ECG case of a 50-year-old lady who presented with palpitations

Her heart
EKG Here’s a ... great ECG case of ... @EM_RESUS #AVRT ... #Tachycardia #EKG ... #Cardiology #EKG
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
Tachycardia with ... 2:1 AV Block • ... Bidirectional Ventricular Tachycardia ... Arrhythmias #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Atrial fibrillation ... "PSVT" (atrioventricular ... retrograde) - AVNRT, AVRT ... #differential # ... diagnosis #causes #cardiology