18 results
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
Tachycardias - Pathophysiology ... Fibrillation ... #Tachycardias #Pathophysiology ... SVT #diagnosis #cardiology ... conduction #pathways #avnrt
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Tachycardia - Differential ... WPW), AVnRT (ie ... Fibrillation, Multifocal ... #Tachycardia #Differential ... #Diagnosis #cardiology
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
Tachyarrhythmia Framework - Differential ... Sinus tachycardia, AVNRT ... fibrillation, Atrial ... fibrillation with ... #Diagnosis #cardiology
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Anatomical Differential ... Fibrillation (AF ... re-entrant tachycardia (AVNRT ... ), Ventricular Fibrillation ... Diagnosis #Causes #cardiology
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Atrial fibrillation ... retrograde) - AVNRT ... , AVRT, Junctional ... #Tachycardias #differential ... diagnosis #causes #cardiology
Supraventricular Tachycardia (SVT) - Differential Diagnosis Framework and Management

Regular SVT: Sinus Tachycardia, AVNRT, AVRT, Atrial Flutter,
Tachycardia (SVT) - Differential ... Sinus Tachycardia, AVNRT ... , AVRT, Atrial Flutter ... Fibrillation, MAT ... Diagnosis #Management #cardiology
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Converts - Probably AVnRT ... Control rate (e.g ... fibrillation or ... Control rate (e.g ... Treatment #management #cardiology
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Subepicardial atrial ... tachycardia ddx: AVNRT ... , AVRT, atrial tachycardia ... #differential # ... cardiology
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
) - Pathophysiology ... - Premature atrial ... ECG usually shows ... #Pathophysiology ... #cardiology #SVT
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
A waves during AVNRT ... , the atria and ... EKG of the same ... excludes other differentials ... PhysicalExam #JVP #Cardiology