Pacemakers: pulse of life.
D001145:Arrhythmias, Cardiac / Q000517:prevention & control; D001283:Atrioventricular Node / Q000503:physiopathology; D004567:Electrodes, Implanted / Q000145:classification; D006321:Heart / Q000033:anatomy & histology; D006801:Humans; D010138:Pacemaker, Artificial / Q000145:classification / Q000295:instrumentation; D010353:Patient Education as Topic; D013527:Perioperative Nursing; D011182:Postoperative Care; D011300:Preoperative Care