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Sinus pause/arrest vs Sinoatrial Block

#cardiology #diagnosis #ekg #ecg #electrocardiogram #sinuspause #sinoatrialblock
Sinus pause/arrest ... vs Sinoatrial Block ... #cardiology ... diagnosis #ekg #ecg #electrocardiogram
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
1st Degree Heart Block ... Brady Management ... HeartBlocks #Types #Classification ... Diagnosis #EKG #electrocardiogram ... #ecg #cardiology
Deep T Wave Inversions - Differential
Normal variants 
  A. Juvenile T wave pattern
Wave Inversions - Differential ... bundle branch block ... #Diagnosis #Causes ... #Cardiology #ECG ... #EKG #Electrocardiogram
Bradycardia - Differential Diagnosis Framework and Management
Narrow Complex Bradycardia:
 • Regular: Sinus Bradycardia, AFib w/ AV
Atrial Tachy w/ AV Block ... w/ Variable AV Block ... , Mobitz I AV Block ... , Mobitz II AV Block ... , Mobitz II AV Block
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
First Degree AV Block ... bundle branch block ... #AVBlock #cardiology ... ecg #diagnosis #electrocardiogram ... #classification
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
• Third degree block ... • Reversible causes ... of AV block - ... Indications #PPM #cardiology ... #management
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
- w/ variable block ... (3) SA node block ... - Proximal AV block ... QRS - Distal AV block ... #cardiology #differential
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
Shock - Differential ... Diagnosis by Classification ... • AV block ... #Syncope #Differential ... #Table #Causes
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Blockers: • MOA: Block ... Blockers: • MOA: Block ... primarily) and block ... Blockers: • MOA: Block ... #cardiology
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
assoc with 1K, AV block ... Trifascicular block ... 1st degree heart block ... #electrocardiogram ... #differential