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Tachyarrhythmias
 
 

Focal Atrial Tachycardia

 
 
 
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Overview

Focal atrial tachycardia is a rapid atrial rhythm originating from a single atrial focus.
  • Look For

  • Narrow complex tachycardia
  • Regular ventricular rhythm
  • Abnormal P wave morphology (e.g. inverted or biphasic) that is consistent
  • An isoelectric baseline (to differentiate from atrial fibrillation or flutter)
  •  
  • Mechanism

  • Focal atrial tachycardia originates from a single source of micro reentry, most commonly in the right atrium.
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