[Termination of atrio-ventricular reentrant tachycardia in a pregnant woman using transoesophageal atrial pacing and pharmacotherapy].

We describe a case of a 19-year-old pregnant woman with paroxysmal atrio-ventricular reentrant tachycardia (AVNRT). Transoesophageal atrial pacing (TAP) successfully terminated the arrhythmia, however, AVNRT restarted after 20 min and was initiated by ventricular ectopy. Intravenous metoprolol effectively suppressed ventricular ectopy and AVNRT did not recur. A modification of the ESC algorithm, with the inclusion of pacing techniques to terminate AVNRT, is proposed.