[Initial experiences with high-frequency electric ablation of the AV conduction system in the XXXX ].

@entity1 @entity713 @entity1163 @entity591 @entity299
For the first time, radiofrequency alternating current ablation of the AV-conduction system was performed in a 49-year-old female @entity1 with recurrent @entity591 with fast @entity713 , refractory to medical therapy, and two conventional DC-shock catheter ablation procedures. Without underlying @entity299 , the @entity1 had experienced almost daily episodes of @entity591 with a total of 10 @entity1163 . An electrophysiological study had revealed an ectopic right- @entity591 and fast AV conduction up to a rate of more than 180 bpm. Soon after conventional right atrial catheter ablation, @entity591 with normal AV-conduction had recurred. Therefore, after catheter positioning (Lumelec, Cordis) at the proximal His bundle, 5 alternating current high-frequency pulses with an output energy of up to 50 W were applied under general anaesthesia. After the fourth application, the ECG revealed @entity713 with a His-bundle escape rhythm of 50 bpm. No complications occurred. Subsequent echocardiography did not reveal any pathological changes. The @entity1 was put on anticoagulant therapy for the following 3 months and discharged after implantation of a permanent, activity-controlled pacemaker system (Activitrax, Medtronic). @entity713 was persistent within a follow-up period of 3 months.
