Overview
Focal atrial tachycardia is a rapid atrial rhythm originating from a single atrial focus.
Pathogenesis
Mechanism
- Focal atrial tachycardia originates from a single source of micro reentry, most commonly in the right atrium.
Diagnosis
ECG Findings
- 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)
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