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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
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
• Third degree block ... induced 2nd or 3rd ... unclear origin • Sinus ... • Reversible causes ... Indications #PPM #cardiology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
(<60 bpm) • Sinus ... • AV Block (ISt ... /2nd /3rd degree ... tachyarrhythmias #Cardiology ... Diagnosis #Algorithm #causes
Complete (3rd Degree) Heart Block on ECG

ECG of a man brought to the ER by paramedics
Complete (3rd Degree ... ) Heart Block on ... HeartBlock #ECG #EKG #Electrocardiogram ... #Cardiology #Clinical
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
DANGER (2) Sinus ... Regular (1) Sinus ... 200ms from longer pause ... EKG #diagnosis #electrocardiogram ... #cardiology #differential
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
: • Sick Sinus ... Node) • 2nd/3rd ... degree AV Block ... Syndrome #Syncope #Cardiology ... Diagnosis #Algorithm #causes
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
4 Variants of Sinus ... Arrhythmia Phasic Sinus ... presence of AV block ... #Arrhythmia #cardiology ... diagnosis #ekg #ecg #electrocardiogram
Causes of Palpitations
 • ARRHYTHMiA 
 • SINUS ARRYTHMIA 
 • ATRIAL FIBRILLATION 
 • ATRIAL
Causes of Palpitations ... ARRHYTHMiA • SINUS ... FLUTTER • HEART BLOCK ... NON-ARRHYTHMIC • SINUS ... #Palpitations #Causes
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
• In sinus rhythm ... #ThirdDegree #3rd ... #AVBlock #Complete ... #cardiology #ekg ... ecg #diagnosis #electrocardiogram
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
1st Degree Heart Block ... Mobitz I Heart Block ... Treatment: Pacemaker 3rd ... Diagnosis #EKG #electrocardiogram ... #ecg #cardiology