20 results
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 ... #diagnosis #causes
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Junctional Tachycardia, Atrial ... Tachycardia, Atrial ... • Irregular: Atrial ... Tachycardia (MAT), Atrial ... #Diagnosis #cardiology
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
DiagnosisNarrow ... Sinus tachycardia, AVNRT ... , Atrial Tachycardia ... , Atrial flutter ... #Diagnosis #cardiology
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
tachycardia • Atria ... : Premature Atrial ... Flutter (AFL), Atrial ... #Diagnosis #Causes ... #cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
• Premature atrial ... Monofocal Ectopic Atrial ... Aflutter • AVNRT ... • Multifocal Atrial ... #causes
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Treatment of Stable Narrow-Complex ... convert - Possible atrial ... flutter, ectopic atrial ... Rhythm: • Probable atrial ... fibrillation or possible atrial
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Subepicardial atrial ... diagnosis includes ... , AVRT, atrial tachycardia ... #ekg #differential ... #cardiology
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
- Premature atrial ... pathway back up to atrium ... depolarizes the atria ... ECG usually shows ... : regular narrow
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
tachycardia • Atrial ... tachycardia • Atrial ... Irregular: • Atrial ... • Multifocal atrial ... #Causes #cardiology
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
, the atria and ... are enough to diagnose ... excludes other differentials ... of narrow complex ... PhysicalExam #JVP #Cardiology