9 results
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
AV block, Multifocal ... Ventricular tachycardia, SVT ... AVRT, Pre-excited SVT ... AV block & bundle ... Differential #Diagnosis #cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
• SA Block • AV ... Tachycardia • Aflutter ... with Variable AV ... Conduction • Multifocal ... tachyarrhythmias #Cardiology
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
flutterAV ... tachycardia • AV ... fibrillation • Multifocal ... • Atrial flutter ... Algorithm #Causes #cardiology
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
w/ BBB (3) SVT ... SVTs - atrial/junctional ... block (3) Multifocal ... #EKG #diagnosis ... electrocardiogram #cardiology
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Syndrome (SSS) • AV ... Flutter (AFL), ... Tachycardia (FAT), Multifocal ... : AV re-entrant ... 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 (rate control ... : - Scooping ST ... #Cardiology #Digitalis
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
- Premature atrial ... usually trigger the typical ... ECG usually shows ... Pathophysiology #cardiology ... #SVT
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
interval < 120 ms = AV ... (e.g. ectopic atrial ... P-Wave Morphology = multifocal ... Flutter PR Interval ... Electrocardiogram #cardiology
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
flutter, or atrial ... sinus syndrome) • Multifocal ... Arrhythmias: • SVT ... & termination: SVT ... #Palpitations #Cardiology