The location of the cardiac pacing electrodes is related to the type of pacemaker. The electrodes for temporary cardiac pacing are mainly placed in the right ventricle, while the electrodes for permanent dual-chamber pacemakers are placed in the atrium and ventricle respectively. 1. Temporary pacemakers: The electrodes of temporary pacemakers float in the right ventricle and their position is not fixed, so they are short-term cardiac pacing electrodes. 2. Permanent pacemakers: Permanent pacemakers are categorized into dual-chamber pacemakers and single-chamber pacemakers. Dual-chamber pacemakers consist of two electrodes that are placed in the right atrium and right ventricle, and the ventricular electrodes are fixed in the front of the ventricular septum, while single-chamber pacemakers have only ventricular electrodes. When installing a pacemaker, it is important to choose the appropriate electrodes and the exact location of installation depending on the model of pacemaker being installed, which varies somewhat from pacemaker to pacemaker. If you need to install a pacemaker, please visit the hospital in time and under the guidance of a professional doctor.