[Supraventricular tachycardia during pregnancy].

An increase in cardiac output during pregnancy increases the risk of arrhythmias for the expectant mother. Supraventricular tachycardia (SVT) underlies the sensations of arrhythmia in a pregnant woman in as many as one sixth of the cases. Vagal nerve (n. vagus) stimulation and adenosine serve as first-line treatment, but electrical cardioversion is likely to be a safe alternative as well. We describe a case in which the SVT of a woman in the third trimester of pregnancy was unresponsive to vagal nerve stimulation and pharmacological treatments. Electrical cardioversion was successfully performed after having a cesarean section procedure.