8 results
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
- Wide vs Narrow ... • ST vs SVT (AVNRT ... abnormality • Beware AV ... #Wide #Narrow # ... Irregular #causes
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
• SA Block • AV ... Aflutter • AVNRT ... • AVRT (ie ... with Variable AV ... Diagnosis #Algorithm #causes
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
or AVRT - Observe ... Control rate with AV ... Control rate (e.g ... Control rate (e.g ... #Stable #NarrowComplex
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 ... Is it wide or narrow ... @EM_RESUS #AVRT ... #Tachycardia #EKG
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
rhythms (5) AV ... block (lower AV ... QRS - Distal AV ... bradyarrhythmia #ECG ... #EKG #diagnosis
Treatment of Stable Wide-Complex Tachycardia
Regular
 • If ventricular tachycardia or uncertain rhythm:
    -
Wide-Complex Tachycardia ... cardioversion • If known SVT ... WPW) - Avoid AV ... nodal agents (e.g ... aberrancy - Follow narrow-complex
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
Visual Guide to AV ... - Dual AV nodal ... stays inside the AV ... ECG usually shows ... : regular narrow
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
exam • 12-lead ECG ... irregular rhythms ... Valvular disease (e.g ... vagal maneuvers: SVT-AVNRT ... or AVRT • Standing