times for extra systoles etc fig5 illustrates a block diagram of a dislocation detection unit 400 according to at least one embodiment of the invention in one or more embodiments of the invention the right atrial electrode 410 the four cs electrode poles 420 430 440 450 and the right ventricular electrode 460 are each connected to a sensing unit 415 425 435 445 455 and 465 respectively to permit detection of a point in time of cardiac stimulation at the electrode pole in at least one embodiment these points in time are recorded in an evaluation unit 470 and are initially stored in a matrix for reference purposes in one or more embodiment the reference matrix is stored for example for various stimulation states of the heart for different heart rates etc in at least one embodiment instead of the dislocation detection unit 400 comprising separate units 415 425 435 445 455 and 465 it may access the sensing units 58 62 and 66 fig6 illustrates an expanded block diagram of an alternative variant embodiment according to at least one embodiment of the invention according to one or more embodiments fig6 corresponds to the block diagram of fig5 with the addition of a switch of the crt stimulation configuration depending on the extent of dislocation that was determined as discussed previously in the example shown in fig4 for example the electrode is displaced by approximately the distance of one ring and therefore the stimulation site is now shifted from pole s 2 to s 1 as such stimulation may still take place at a hemodynamically.