Dual-chamber pacemaker implantation in a young woman with Ebstein's anomaly.

A case of 28-year-old woman with Ebstein's anomaly and complete AV block, requiring a permanent dual-chamber pacemaker implantation, is described. The ventricular lead was successfully placed in the right ventricular outflow tract and there was no problem associated with positioning of the atrial electrode in the right atrial appendage, with good sensing and threshold. The subsequent clinical course was uncomplicated and the patient has remained asymptomatic throughout the eight-month follow-up. This experience allows us to state that even in the presence of the marked structural abnormalities of Ebstein's anomaly, dual-chamber pacing is indeed feasible and successful, enabling the disappearance of symptoms related to the AV block.