cardiac pacemaker location

pacemaker heart implant artificial cardiac treatment location realistic blue torso human silhouette xray bradycardia tachycardia arrhythmia cross pulse generator stimulate septum epicardial wall ventricle vector medical health device medicine heartbeat healthcare care cardiology diagnosis disease technology surgery defibrillator equipment science concept medic cardiovascular patient attack electrocardiogram rate therapy cardiogram cardioverter electrical impuls atrioventricular lead wires electrodes implantable placement complications dark background like