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Pacemaker Implantation
A pacemaker insertion is the implantation of a small electronic device that is usually placed in the chest (just below the collarbone) to help regulate slow electrical problems with the heart. A pacemaker may be recommended toensure that the heartbeat does not slow to a dangerously low rate.
Defibrillators treat arrhythmias in two ways: in the first instance the device tries to stop the abnormal rhythm with a burst of high speed pacing (cardioversion). If that fails, the device will deliver an electrical shock to the heart to reset its rhythm (defibrillation). Patients are usually not aware of cardioversion and nearly always aware of defibrillation.
It is also capable of collecting and storing information about your heart’s electrical activity for your cardiologist to check.This normal electrical circuit begins in the sinus or sinoatrial (SA) node, which is a small mass of specialized tissue located in the right atrium(upper chamber) of the heart. The SA node generates an electrical stimulus at 60 to 100 times per minute (for adults) under normal conditions; this electrical impulse from the SA node starts the heartbeat.
A pacemaker may be needed when problems occur with the electrical conduction system of the heart. When the timing of the electrical stimulation of the heart to the heart muscle and the subsequent response of the heart’s pumping chambers is altered, a pacemaker may help.