14 results
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
DiagnosisNarrow ... , Orthodromic AVRT ... , Atrial flutter ... tachycardia • Narrow ... block, Antidromic AVRT
Tachycardia - Differential Diagnosis and Management - Narrow vs Wide, Regular vs Irregular
Narrow - Regular:
Use P
Tachycardia - Differential ... deflection not AVRT ... /AVNRT. ... • Atrial Flutter ... • MAT. 3 types
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Tachycardia - Differential ... Diagnosis Framework ... Narrow-Complex: ... Flutter, AVRT ( ... Tachycardia, Antidromic AVRT
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Atrial flutter ... retrograde) - AVNRT ... , AVRT, Junctional ... #Tachycardias #differential ... #diagnosis #causes
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... diagnosis includes ... tachycardia ddx: AVNRT ... , AVRT, atrial tachycardia ... #ekg #differential
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
- DANGER Narrow ... flutter (3) ... 3 different P waves ... #EKG #diagnosis ... electrocardiogram #cardiology #differential
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Anatomical Differential ... Diagnosis for Arrhythmias ... Flutter (AFL), ... tachycardia (AVRT ... tachycardia (AVNRT
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Arrhythmias - Differential ... Diagnosis Algorithm ... • AVNRT ... • AVRT (ie. ... WPW) - Narrow
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
the atria and ventricles ... EKG of the same ... are enough to diagnose ... of narrow complex ... JVP #Cardiology #Neck
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
(e.g. ectopic atrial ... Flutter PR Interval ... • 2° Block Type ... in aVR Poor R wave ... Electrocardiogram #cardiology #diagnosis