Left atrial appendage: The uncommon origin of focal atrial tachycardia in a pregnant woman

A 28-year-old pregnant woman at 37 gestational weeks was admitted to the hospital for childbirth. She experienced palpita tions since her 5th gestational month, and her ECG revealed atrial tachycardia with a rate of 134 bpm (Fig. 1a). Negative P wave in lead D1 and positive P wave in lead V1 suggested a left atrial origin. She showed no clinical signs of heart failure