13 results
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
Tachyarrhythmia ... AVRT, Atrial Tachycardia ... • Narrow QRS - ... • Wide QRS - Regular ... block, Antidromic AVRT
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... • Narrow complex ... : AVNRT, AVRT, atrial ... (SVT) in wide cornplex ... #AVR #leadAVR #ecg
Lead aVR on EKG
Lead aVR can provide some unique insight into 5 different conditions:

 - Acute
Lead aVR on EKG ... TCA-like overdose - AVRT ... in narrow complex ... with aberrancy in wide ... #ECG #Lead #AVR
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
(>100 bpm) - Narrow ... • AVRT (ie ... WPW) - Narrow ... - Wide Complex ... Diagnosis #Algorithm #causes
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
Diagnosis Table ... - Wide vs Narrow ... • ST vs SVT (AVNRT ... abnormality • Beware AV ... #Wide #Narrow #
Supraventricular Tachycardia EKG

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

Her heart
Supraventricular Tachycardia ... great ECG case of ... Is it wide or narrow ... computer thinks it’s wide ... @EM_RESUS #AVRT
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Bradyarrhythmias Tachyarrhythmias ... - HR > 100 Wide ... 200ms from longer pause ... can function) Wide ... #Bradycardia #tachyarrhythmia
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Narrow-Complex ... Converts - Probably AVnRT ... or AVRT - Observe ... Treat underlying cause ... Treat underlying cause
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
Nodal Reentrant Tachycardia ... - In most case ... ECG usually shows ... : regular narrow ... complex tachycardia
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
AV block ... - Tachyarrhythmias ... • Ventricular tachycardia ... Classification #Table ... #Causes