Focal Atrial Tachycardia Originating From the Right Atrial Appendage Masquerading as Inappropriate Sinus Tachycardia

• DOI: 10.1016/j.jaccas.2021.06.034
• Publication Date: 2021-09-01T18:00:29Z
• Authors: Fatemeh Adabifiro...; Anthony Nicholas ...; Gordon Ho
• Keywords: 03 medical and health sciences; Ecg Teaching Competition; 0302 clinical medicine

Focal atrial tachycardia arising from the right atrial appendage (RAAT) may be misdiagnosed as sinus tachycardia. The electrocardiogram from this case demonstrates a negative notched P-wave in leads V1 and V2 during RAAT compared with a beat of sinus rhythm. RAAT was confirmed and eliminated with mapping and ablation. (Level of Difficulty: Advanced.).