Cyclic supraventricular tachycardia in the parturient: to treat or not to treat?

Cardiac arrhythmias are more common in pregnant women than in non-pregnant women. In the asymptomatic pregnant patient with a stable fetus, watchful waiting might be the best strategy. Herein, we describe the first reported case of a pregnant patient who developed cyclic supraventricular tachycardia during labor. No treatment was prescribed, with a good maternal and fetal outcome.