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Understanding ICDs or Implantable Cardiac Defibrillator’s
by
Maynard Jensen
How many times have you seen them being used on TV medical dramas. They seem to make for the ultimate in dramatic medical suspense. The camera zooms in on the patient who is hanging onto life by a mere thread, while a doctor yells clear then jolts them with a cardiac defibrillator. In short order the background music gives a clue as to the outcome. Sad music if the patient is unresponsive, while bright upbeat music means that the patient will soon be opening their eyes.
Cardiac Defibrillators Use Electricity Its plain to see that it is electricity that is the driving force in a cardiac defibrillator but just how it works is somewhat of a mystery to most people. The fact is that the heart muscle responds to electricity and its beat rhythm can be effected by a cardiac defibrillator. Used to Re Establish a Regular Beat In medical emergencies, when the heart stops functioning properly it is still active, however it is beating so irregularly that its ability to pump blood is greatly adversely effected. Cardiac defibrillator are used to get the heart beating again in a regular rhythm which is vital. Commonly Referred to As Pacemakers Implantable cardiac defibrillators are also commonly referred to as pace makers. They function in the same way as the big hand held unit you have seen on your TV shows but are just in miniature form. They are implanted in the chest and keep tack of the hearts beating patterns and will automatically deliver a shock to the heart if they sense an abnormality. A Less Powerful Jolt of Electricity However; they don’t use the same powerful jolt that the big hand held defibrillators on the TV shows do. This is because the electrical impulse that implantable defibrillator’s deliver is much closer to the heart due to small electrical wires that are placed near the heart when the pacemaker is implanted.
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Understanding ICDs or Implantable Cardiac Defibrillator’s