23 results
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
Ventricle • Sinus ... Atrial Tachycardia ... AV Reentry Tachycardia ... Pathophysiology #SVT ... #diagnosis #cardiology
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... findings: Sinus ... , atrial tachycardia ... tachycardia (SVT ... #cardiology
Lead aVR on EKG
Lead aVR can provide some unique insight into 5 different conditions:

 - Acute
Lead aVR on EKG ... from SVT with aberrancy ... ) #Diagnosis # ... Cardiology #EKG ... #ECG #Lead #AVR
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Diagnosis Framework ... Narrow-Complex: • Regular: Sinus ... Tachycardia, Atrial ... Tachycardia, Atrial ... #cardiology #wide
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Anatomical Differential Diagnosis ... bradycardia, Sick Sinus ... ) • SA node: Sinus ... #Differential #Diagnosis ... #Causes #cardiology
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
- Differential Diagnosis ... Regular Rhythm: Sinus ... , Orthodromic AVRT ... , Atrial Tachycardia ... #cardiology
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Sinus tachycardia ... "PSVT" (atrioventricular ... retrograde) - AVNRT, AVRT ... #differential #diagnosis ... #causes #cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
- Differential Diagnosis ... (<60 bpm) • Sinus ... AVNRT • AVRT ... tachyarrhythmias #Cardiology ... #Differential #Diagnosis
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
Tachycardia with ... 2:1 AV Block • ... Bidirectional Ventricular ... #Arrhythmias #diagnosis ... #cardiology #ecg
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
- Differential Diagnosis ... - Regular: • Sinus ... AV reentrant tachycardia ... • Atrial tachycardia ... Algorithm #Causes #cardiology