The other ends attach to a device (shock generator) that's implanted under the skin beneath the collarbone. The ends of the leads attach to the heart. You will likely be given general anesthesia (fully asleep).ĭuring surgery to implant the ICD, the doctor guides one or more flexible, insulated wires (leads) into veins near the collarbone to the heart using X-ray images as a guide. During the procedureĪ health care provider will insert an IV into your forearm or hand and may give you a medication called a sedative to help you relax. Talk to your health care provider about any medications you take and whether you should continue to take them before the procedure to implant an ICD. If you're having an ICD implanted, you'll likely be asked to avoid food and drinks for at least 8 hours before the procedure. A health care provider uses this information to identify the area that is causing the irregular heartbeat. Sensors on the tip of each catheter send signals and record the heart's electricity. The health care provider guides a flexible tube (catheter) through a blood vessel into the heart. Event recorders are similar to Holter monitors and generally require you to push a button when you feel symptoms. There are several different types of event recorders. If you didn't have any irregular heart rhythms while you wore a Holter monitor, your health care provider may recommend an event recorder, which can be worn for a longer time. Your health care provider will usually compare the diary with the electrical recordings and try to figure out the cause of your symptoms. While wearing the monitor, you may be asked to keep a diary of your activities and symptoms. Wires from sensors on the chest connect to a battery-operated recording device carried in a pocket or worn on a belt or shoulder strap.
You typically wear a Holter monitor for 1 to 2 days. It may be able to spot irregular heart rhythms that an ECG missed. A Holter monitor is a small, wearable device that keeps track of the heart rhythm. It shows the size and structure of the heart and how blood is flowing through the heart. This noninvasive test uses sound waves to create pictures of the heart in motion. An ECG can show if the heart is beating too fast, too slow or not at all. Wires connect the electrodes to a computer, which displays the test results. Sticky patches (electrodes) are placed on the chest and sometimes the arms and legs. An ECG is a quick and painless test that measures the electrical signals that make the heart beat. Movement (shifting) of the device or leads, which could lead to cardiac perforation (rare)īefore you get an ICD, your health care provider will order several tests, which may include:.Blood leaking through the heart valve (regurgitation) where the ICD lead is placed.Bleeding around the heart, which can be life-threatening.Possible risks of having an ICD implanted include: Other rare conditions that may affect the heartbeatĪ health care provider may recommend an S-ICD if there are structural defects in the heart that prevent attaching wires to the heart through the blood vessels.A genetic heart condition that increases the risk of dangerously fast heart rhythms, such as some types of long QT syndrome.A history of coronary artery disease and heart attack that has weakened the heart.Other reasons you may benefit from an ICD are: An ICD might also be recommended if you survived a cardiac arrest. Your health care provider may recommend an ICD if you've had signs or symptoms of a certain type of irregular heart rhythm called sustained ventricular tachycardia, including fainting. It helps when the heart stops beating effectively (cardiac arrest). It connects it to a sensor that runs along the breastbone.Īn ICD constantly monitors for irregular heartbeats and instantly tries to correct them. The S-ICD device is implanted under the skin at the side of the chest below the armpit. Subcutaneous implantable cardioverter-defibrillator (S-ICD)Ī subcutaneous implantable cardioverter-defibrillator (S-ICD) is a less invasive alternative to a traditional ICD.
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