[Reduction of dislocation of transvenous pacemaker electrodes taking intracardiac ECG potentials into account (author's transl)].

For the assessment of stable positions of the electrodes radiographic control, threshold measurements and methods provoking dislocation are used. There is an average dislocation rate of endocardial electrodes of 7-11%. As a further parameter for intra-operative assessment of a stable electrode position intracardiac R-potentials were measured with the stimulation electrode.