An Implantable Cardioverter Defibrillator is a small device that monitors your heart rate and rhythm. If you have a potentially lethal arrhythmia, the ICD will give your heart an electrical charge so that your heart will start beating normally again. It includes a pacemaker to prevent the heart from beating too slowly.

A Resynchronization Device is a special type of pacemaker or ICD that can benefit selected patients with heart failure. It helps the heart to contract more efficiently and improves symptoms.

Why do I need it?
Certain conditions require an ICD when your heart muscle is weakened. These include a heart attack, congestive heart failure, or coronary artery disease. You may also be a candidate if you have ventricular fibrillation or ventricular tachycardia.

How do I prepare?
Your doctor will explain this procedure to you in detail. You will also receive a call from a pre-admission nurse who will further explain and answer any questions that you may have.

What are the risks?
Although the risks of ICD implants are low they include:

• Bleeding, infection, and lead dislodgement.
• Collapsed lung from the implant that may require a tube to re-expand the lung.
• Perforation of the heart from the leads during implant that could lead to a very serious complication.
• During testing of the ICD, a serious rhythm disturbance is induced. In extremely rare instances in which regular rhythm cannot be restored, there are two backup defibrillators on hand to remedy this problem.

What can I expect during the test?

• You will be given local anesthesia and medicine through an intravenous line (IV).
• An incision will be made in your skin, usually below your collarbone.
• A special x-ray will be used to guide and place the leads in your heart.
• You will be given general anesthesia prior to ICD testing.
• A generator will be placed under your skin, tested, and secured.

What can I expect after the test?

• The area will be sore.
• Avoid heavy lifting with your left arm for three weeks.
• No driving until your doctor okays it.
• You will see and feel the outline of the ICD through your skin.
• If the ICD notices an abnormal heart rhythm, it may give your heart an electrical charge. This may feel like someone has hit you or you may feel a thump in the chest. If someone is touching you when you get a shock, he/she will feel a small tingling.

Is there anything else I should know?
If you feel one shock from your device but otherwise feel well, it is not an emergency. Call your doctor that day (or the following morning).
n If you have more than one shock or you experience a shock and feel chest pain, trouble breathing, or dizziness, call 911 and go to the nearest Emergency Room.
n Tell other doctors and your dentist that you have an ICD.
n Certain types of medical equipment may affect how an ICD works. Household microwaves, electrical appliances, most office and light shop equipment DO NOT affect your ICD. However, if you work around industrial microwaves, electricity, cars or other large motors, ask your doctor about possible effects.
n Tell airport security that you have an ICD.