An artificial pacemaker is a device that's implanted inside the body. It is used to correct markedly slow heart rhythms.
The pacemaker is usually implanted beneath the skin, just below the collarbone. It senses the person's heartbeat and responds accordingly. If it senses that the heart beats too slowly or pauses for too long, it sends tiny electrical signals which stimulate the heart to contract and pump blood.
During the procedure, a local anesthetic is given by injection to numb the area where the pacemaker will be inserted. Then an incision is made below the collarbone to create a small "pocket". The pacemaker lead is threaded through the incision to a vein in the patient's upper chest, then guided into the heart's chambers using x-ray monitors. Electrical measurements are taken to determine a good position for the lead in the heart. There may be a second lead, in which case this process is repeated. The pacemaker generator is attached to the lead(s), then placed in the pocket beneath the skin. The pacemaker is then programmed, and the incision closed and covered with a sterile dressing.
Pacemaker batteries usually last five to ten years before needing replacement. Because the battery is sealed inside the generator, this involves replacing the generator itself. The generator replacement is generally simpler and shorter than the initial implantation.
To replace the generator, the pacemaker pocket is opened, the old generator is detached from the leads, the new generator is attached to the leads and placed in the pocket and the pocket is closed. Occasionally the lead wears out and a lead replacement is required. The lead replacement more closely resembles the original implantation.
Pacemaker recipients are given an ID card to carry. This should be shown to doctors, dentists and other medical professionals. Because pacemakers can set off security devices in place like airports and libraries, the card may also need to be shown to security personnel.
A pacemaker may provide the extra help a heart needs to relieve symptoms and allow the recipient to be active and enjoy the activities they love.
For More Information Contact:
Southern Illinois Heart Institute
211 South Third Street, Belleville, Il 62220
Tel: 1-800-676-SIHI (7444)
Internet: info@sihi.org
