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. 2022 May 6;1(3):158–161. doi: 10.1016/j.cjcpc.2022.04.002

Figure 1.

Figure 1

(A) 12-lead ECG demonstrating 2:1 atrial flutter and (B) AliveCor tracing showing possible 2:1 atrial flutter with a fixed heart rate of 140 bpm in a 2-month-old baby with incessant SVT (C) AliveCor tracing in a 12-year-old boy showing SVT, which later was diagnosed as AVRT. (D) AliveCor tracing in a 13-year-old girl showing SVT, which was later shown to be AVNRT. AVNRT, atrioventricular nodal re-entrant tachycardia; AVRT, atrioventricular reciprocating tachycardia; ECG, electrocardiogram; SVT, supraventricular tachycardia.