40 results
Supraventricular Tachycardias - Pathophysiology
Conduction pathways through SA Node, Atrium, AV Node, Bundle of His, and Ventricle
, AV Node, Bundle ... • 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 ... , atrial tachycardia ... tachycardia (SVT ... #AVR #leadAVR #ecg ... #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 ... Brugada criteria) #Diagnosis ... #Cardiology #EKG ... #ECG #Lead #AVR
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Diagnosis Framework ... , Atrial Tachycardia ... , AVRT (ie. ... , Antidromic AVRT ... #cardiology #wide
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
- Differential Diagnosis ... AVNRT, Orthodromic AVRT ... , Atrial Tachycardia ... , SVT with bundle ... #cardiology
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
- Differential Diagnosis ... Algorithm Narrow ... AV reentrant tachycardia ... • Atrial tachycardia ... #cardiology
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Anatomical Differential Diagnosis ... VT, Polymorphic ... VT (i.e. ... #Differential #Diagnosis ... #Causes #cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
- Differential Diagnosis ... Algorithm Bradyarrhythmia ... AVNRT • AVRT ... tachyarrhythmias #Cardiology ... #Algorithm #causes
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Atrial fibrillation ... "PSVT" (atrioventricular ... retrograde) - AVNRT, AVRT ... #differential #diagnosis ... #causes #cardiology
Ventricular Tachycardia in Wide Complex Tachycardia - Telemetry Diagnosis
 • Lead V1 - LBBB Criteria
 •
- Telemetry Diagnosis ... RWPT) • Lead aVR ... #Algorithm # ... #cardiology #ekg ... #ecg #telemetry