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Focal Atrial Tachycardia



  • 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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