Pacemaker Surgery
Pacemaker Surgery *********************************************************** Relevant Background: " A cardiac pacemaker (or artificial pacemaker , so as not to be confused with the natural pacemaker of the heart ), is a medical device that generates electrical impulses delivered by electrodes to cause the heart muscle chambers (the upper, or atria and/or the lower, or ventricles ) to contract and therefore pump blood; by doing so this device replaces and/or regulates the function of the electrical conduction system of the heart .... The primary purpose of a pacemaker is to maintain an adequate heart rate , either because the heart's natural pacemaker is not fast enough, or because there is a block in the heart's electrical conduction system. Modern pacemakers are externally programmable and allow a cardiologist, particularly a cardiac electrophysiologist to sel...