9 results
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Tachycardia, Atrial ... • Irregular: Atrial ... Fibrillation, Multifocal ... Atrial Tachycardia ... #Diagnosis #cardiology
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Atrial fibrillation ... Multifocal Atrial ... Atrial flutter ... (Ectopic) Atrial ... retrograde) - AVNRT
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
Sinus tachycardia, AVNRT ... , Atrial Tachycardia ... , Atrial flutter ... variable AV block, Multifocal ... #Diagnosis #cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
(ISt/2nd /3rd degree ... • Premature atrial ... Monofocal Ectopic Atrial ... Aflutter • AVNRT ... Atrial Tachycardia
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Subepicardial atrial ... tachycardia • Narrow ... , AVRT, atrial tachycardia ... #differential # ... cardiology
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Narrow & regular ... P and QRS • Atrial ... HeartBlocks #Types #Classification ... #Diagnosis #EKG ... #cardiology
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
, the atria and ... EKG of the same ... excludes other differentials ... of narrow complex ... PhysicalExam #JVP #Cardiology
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
tachycardia (2) Atrial ... (3) SVTs - atrial ... atrial tachycardia ... #EKG #diagnosis ... #differential
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
Paroxysmal AF, atrial ... flutter, or atrial ... Arrhythmias: • Atrial ... sinus syndrome) • Multifocal ... atrial tachycardia