11 results
Bradycardia - Differential Diagnosis Framework and Management
Narrow Complex Bradycardia:
 • Regular: Sinus Bradycardia, AFib w/ AV
w/ AV Block, Atrial ... Tachy w/ AV Block ... AV Block, Mobitz ... II AV Block Wide ... SVT WI Wide QRS, Ventricular
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
rhythms (5) AV ... QRS - Proximal AV ... block (lower AV ... block - ventricular ... #cardiology #differential
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Syndrome (SSS) • AV ... Tachycardia (MAT) • AV ... node: AV re-entrant ... ), AV nodal re-entrant ... #cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
AV Block (ISt ... interval) • AFib ... with Variable AV ... tachyarrhythmias #Cardiology ... Diagnosis #Algorithm #causes
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
Tachycardia - Differential ... Diagnosis Table ... AFIutter + variable block ... abnormality • Beware AV ... #cardiology
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
AFib/AFlutter ... • AVNRT/AVRT ... 2nd/3rd degree AV ... Syndrome #Syncope #Cardiology ... Diagnosis #Algorithm #causes
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
Shock - Differential ... • AV block ... Tachyarrhythmias • Ventricular ... Classification #Table ... #Causes
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
interval < 120 ms = AV ... Waves/Fibrillary = afib ... Dominant R wave in aVR ... Interpretation #ECG #Electrocardiogram ... #cardiology #diagnosis
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... Elevation - Differential ... depression in aVR ... #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
Palpitations - Differential ... : SVT-AVNRT or AVRT ... /Afib/WPW) • Loss ... #Palpitations #Cardiology ... #Differential #