[Reinterventions following the implantation of atrial electrodes (author's transl)].

During the past 3 years 41 atrial electrodes (36 J-leads and 5 screw-in electrodes) were implanted for stimulation and/or triggering in 39 patients selected by haemodynamic criteria. In seven patients (18%) reinterventions had to be performed because of a rise in threshold (four cases) and dislocation or unstable position of the electrode (three cases). Reposition of the electrode was successful in only one case, while in four cases a ventricular electrode was implanted and the stimulation mode converted to ventricular pacing. In two other patients the complication was managed by changing the type of electrode.