22 results
Atrial Fibrillation and WPW - Pre-Excitation AFib
In pre-excitation + a-fib with RVR:
 • All AV nodal
Atrial Fibrillation ... #Fibrillation # ... #clinical #ecg ... #ekg #electrocardiogram ... #cardiology
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... abberancy - N B Afib ... bradyarrhythmia #ECG ... #electrocardiogram ... #cardiology #differential
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
Diagnosis • Narrow ... AVNRT, Orthodromic AVRT ... tachycardia • Narrow ... fibrillation, Atrial ... #Diagnosis #cardiology
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
fibrillation with ... Fibrillation with ... Tachycardia with 2:1 AV ... Arrhythmias #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
Wolff-Parkinson-White (WPW)
- Orthodromic AVRT: Narrow complex, most common 
- Antidromic AVRT: wide complex because goes through
- Orthodromic AVRT ... : Narrow complex ... pathway first - A-fib ... WolffParkinsonWhite #WPW #Cardiology ... #ECG #EKG #Electrocardiogram
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... Subepicardial atrial ... #AVR #leadAVR #ecg ... #electrocardiogram ... cardiology
Tachycardia - Differential Diagnosis Framework
Narrow-Complex:
 • Regular: Sinus Tachycardia, Junctional Tachycardia, Atrial Tachycardia, Atrial Flutter, AVRT
Tachycardia - Differential ... Flutter, AVRT ( ... Fibrillation, Multifocal ... #Diagnosis #cardiology ... #wide #narrow #
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
) Irregular Narrow ... Atrial fibrillation ... retrograde) - AVNRT, AVRT ... #Tachycardias #differential ... diagnosis #causes #cardiology
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Anatomical Differential ... Fibrillation (AF ... ), Ventricular Fibrillation ... (V-Fib, VF) ... Diagnosis #Causes #cardiology
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
- Decreases AV ... fibrillation and ... atrial flutter ... Digoxin effect on ECG ... #EKG #Cardiology