9 results
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
Node, Atrium, AV ... Nodal Reentry Tachycardia ... Pathophysiology #SVT ... #diagnosis #cardiology ... conduction #pathways #avnrt
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Anatomical Differential Diagnosis ... : AV re-entrant ... tachycardia (AVRT ... ), AV nodal re-entrant ... tachycardia (AVNRT
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
Nodal Reentrant ... Tachycardia (AVNRT ... ECG usually shows ... #Nodal #Reentrant ... #Tachycardia #AVNRT
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
- Differential Diagnosis ... Algorithm Narrow ... Atrial flutter • AV ... nodal reentrant ... AV reentrant tachycardia
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
- Differential Diagnosis ... Algorithm Bradyarrhythmia ... • SA Block • AV ... Aflutter • AVNRT ... with Variable AV
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
Diagnosis Table ... (AVNRT, OAVRT, AFIutter ... > SVT+conduction ... abnormality • Beware AV ... nodal blockers
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Converts - Probably AVnRT ... Control rate with AV ... nodal blocking ... Control rate (e.g ... management #cardiology #algorithm
Algorithm for the Evaluation of Regular, Wide-Complex Tachycardia
1. aVR: Is the initial deflection in aVR positive?
Algorithm for the ... Evaluation of Regular ... AV Dissociation: ... #ECG #EKG #Electrocardiogram ... #Diagnosis #Cardiology
Treatment of Stable Wide-Complex Tachycardia
Regular
 • If ventricular tachycardia or uncertain rhythm:
    -
If ventricular tachycardia ... cardioversion • If known SVT ... WPW) - Avoid AV ... nodal agents (e.g ... management #cardiology #algorithm