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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
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
Complete Heart Block ... Tachycardia with 2:1 AV Block ... • Bidirectional ... #Arrhythmias #diagnosis ... #cardiology #ecg
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
- w/ variable block ... (3) SA node block ... rhythms (5) AV block ... - Proximal AV block ... QRS - Distal AV block
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
Diagnosis Summary ... • During sinus ... #AVBlock #cardiology ... #ekg #ecg #diagnosis ... #electrocardiogram
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
High-grade AV Block ... • During sinus ... #Advanced #diagnosis ... #cardiology #ecg ... #ekg #electrocardiogram
Second degree AV Block 2:1
 • During sinus rhythm, 2 to 1 AV block manifest as
Second degree AV Block ... 2:1 • During sinus ... #2to1 #ecg #diagnosis ... #ekg #electrocardiogram ... #cardiology
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
1st Degree Heart Block ... PR shorted after ... degrees #summary #Diagnosis ... #EKG #electrocardiogram ... #ecg #cardiology
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
presence of AV block ... is gradual • After ... #Arrhythmia #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram
Causes of Palpitations
 • ARRHYTHMiA 
 • SINUS ARRYTHMIA 
 • ATRIAL FIBRILLATION 
 • ATRIAL
Causes of Palpitations ... ARRHYTHMiA • SINUS ... FLUTTER • HEART BLOCK ... #Differential #Diagnosis ... #Cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
- Differential Diagnosis ... Syndrome • SA Block ... • AV Block (ISt ... tachyarrhythmias #Cardiology ... #Algorithm #causes