68 results
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
(VT) from supraventricular ... tachycardia (SVT ... and to detect VT ... #electrocardiogram ... #diagnosis #ekg
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Diagnosis Framework ... WPW), AVnRT (ie SVT ... , SVT w/aberrancy ... Irregular: Polymorphic VT ... Any irregular SVT
Lead aVR on EKG
Lead aVR can provide some unique insight into 5 different conditions:

 - Acute
narrow complex tachycardias ... Differentiating VT ... from SVT with aberrancy ... in wide complex tachycardias ... Brugada criteria) #Diagnosis
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
SVT - Wide Tachycardias ... is positive in aVR ... #VT #VTach #SVT ... ekg #cardiology #diagnosis ... #electrocardiogram
Wide Complex Tachycardia - Differential Diagnosis Algorithm
Irregular
 • Polymorphic VT
    - Torsades
• Polymorphic VT ... True Monomorphic VT ... Heart Disease • VT ... Mimickers - SVT ... - SVT with
Supraventricular Tachycardia (SVT) - Differential Diagnosis Framework and Management

Regular SVT: Sinus Tachycardia, AVNRT, AVRT, Atrial Flutter,
(SVT) - Differential ... Management Regular SVT ... , AVNRT, AVRT, Atrial ... Junctional Irregular SVT ... #SVT #Differential
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Regular Rhythm SVT ... AVNRT • AVRT ... Irregular Rhythm SVT ... Regular rhythm SVT ... Irregular rhythm SVT
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
Node, Atrium, AV ... Fibrillation • AV ... • AV Reentry ... Pathophysiology #SVT ... #diagnosis #cardiology
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
Diagnosis Table ... : • ST vs SVT ... • Tx: Vagal maneuvers ... • HyperK vs VT ... > SVT+conduction
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
- Differential Diagnosis ... AVNRT, Orthodromic AVRT ... , SVT with bundle ... block, Antidromic AVRT ... , Pre-excited SVT