Blocked Atrial Bi/Trigeminy In Utero Evolving in Supraventricular Tachycardia after Birth

<table>Color M-mode. Notice how every 2 atrial contractions lead to regular opening of the aortic valve, there is a premature atrial beat (black arrow) that is not conducted to the ventricles and does not lead to aortic valve opening (white arrow). </table>

Case Reports in Obstetrics and Gynecology

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Figure 1

Figure 1: Blocked Atrial Bi/Trigeminy In Utero Evolving in Supraventricular Tachycardia after Birth 