Cardiac Pacemaker VideoCARDIAC PACEMAKER VIDEO
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What is a pacemaker?
A pacemaker is a small, battery-powered device that is implanted permanently into the body. The pacemaker monitors the electrical impulses in the heart and, when needed, delivers electrical stimuli to make the heart beat (contract) in a more normal rhythm.
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When is it used? A pacemaker is used when the heart beats too slowly(bradycardia) or has other abnormal rhythms (arrhythmias). In some cases, pacemakers are also used to treat the symptoms of heart failure.
How does it work? A pacemaker consists of a battery and electrical circuitry (pulse generator). The battery powers the pacemaker. The circuitry checks the heart rate and produces tiny electrical pulses that keep the heart beating at the correct pace. The pacemaker is connected to the heart through one to three insulated wires (leads) that are attached directly to the heart's chambers. The following two minute cardiac pacemaker video clearly demonstrates how the pacemaker works. Click on the arrow in the center of the screen to begin viewing.
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Some pacemakers can be customized to meet specific needs. These include: * Rate-Responsive Pacemakers - These pacemakers may be programmed to increase or decrease heart rate to match your activities (i.e. resting or walking). * Single-Chambered Pacemakers - These pacemakers use only one lead placed into the right upper chamber of the heart (right atrium) or the right lower chamber (right ventricle). * Dual-Chambered Pacemakers - These pacemakers have two leads. One is placed in the right atrium, the other in the right ventricle. * Cardiac Resynchronization Therapy Pacemakers - These pacemakers have three leads. One is in the right atrium, one is in the right ventricle, and one is placed through the heart’s veins to the left ventricle.
What will a pacemaker accomplish? A pacemaker can restore a normal heart rate so that the heart can pump more effectively. This can reduce or stop the symptoms of abnormal heartbeats (arrhythmias), such as dizziness, confusion, fainting, or fatigue.
What are the risks?
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* Risks Due to Surgical Procedure Risks from the surgery to implant the pacemaker include: Bleeding Swelling or bruising under the skin Blood clot formation Infection Blood vessel damage Your doctor will tell you about additional risks from the surgical procedure. * Need For Additional Surgeries To Replace Or Repair Pacemaker * Electromagnetic Interference Some devices in your surroundings may interfere with your cardiac pacemaker. Currently available pacemakers are more resistant to this problem than earlier models. Always carry your wallet I.D. card with you. Household devices and appliances may cause the pacemaker to enter a mode to prevent inappropriate behavior or cause it to stop delivering therapy until the interference source is removed. Some medical equipment can damage your pacemaker. If you are visiting your doctor or dentist, tell him or her that you have a pacemaker BEFORE they do any testing or treatment. Some security devices may temporarily stop your pacemaker from working properly or give you cardiac symptoms. A general rule of thumb is “Don’t lean, don’t linger” when moving through these devices.
Welders and electric generators may stop your pacemaker from working properly.
When should it not be used? A pacemaker should not be implanted in people who cannot tolerate the device or the surgical procedure, or who are sensitive (allergic) to the exposed parts of the pacing system. P.S.
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