21 results
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Atrial Flutter, AVRT ... WPW), AVnRT (ie ... : • Ventricular ... Tachycardia, Antidromic AVRT ... #wide #narrow #
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... tachycardia ddx: AVNRT ... tachycardia (SVT) in wide ... #AVR #leadAVR #ecg ... #differential #cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
AV Block (ISt ... • AVRT (ie ... aberrancy - Wide ... tachyarrhythmias #Cardiology ... Diagnosis #Algorithm #causes
Wolff-Parkinson-White (WPW)
- Orthodromic AVRT: Narrow complex, most common 
- Antidromic AVRT: wide complex because goes through
- Orthodromic AVRT ... - Antidromic AVRT ... : wide complex because ... #ECG #EKG #Electrocardiogram ... #Clinical #Diagnosis
Hallmark ECG features of Ventricular Tachycardia (VT)
AV indicates atrioventricular; LAD, left axis deviation; LBBB, left bundle
of Ventricular ... Tachycardia (VT) AV ... time; and WCT, wide ... complex tachycardia ... Electrocardiogram #Diagnosis #Cardiology
Supraventricular Tachycardia EKG

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

Her heart
Here’s a great ECG ... case of a 50-year-old ... @EM_RESUS #AVRT ... #Cardiology #EKG ... #Clinical
66 yo with syncope - Ventricular Tachycardia

This ECG shows a wide-complex tachycardia in a right bundle
with syncope - Ventricular ... shows a wide-complex ... bundle branch block ... VentricularTachycardia #Clinical ... #Cardiology #ECG
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
• ST vs SVT (AVNRT ... AFIutter + variable block ... whether AF is cause ... abnormality • Beware AV ... #cardiology
Accelerated Idioventricular Rhythm (AIVR) on EKG
 • Regular rhythm with wide. 
 • QRS complexes >120
rhythm with wide ... • QRS complexes ... Ventricular origin ... #diagnosis #cardiology ... #clinical
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
QRS often wide. ... Pacemaker 3rd Degree, Complete ... • Block in AV ... electrocardiogram #ecg ... #cardiology