Pacemaker and implantable cardioverter-defibrillator (ICD) surgery

For people with serious arrhythmia, cardiologists may decide to implant an ICD. This device’s computer constantly monitors heart rate and rhythm. If the heart is far out of rhythm or beats way too fast or slow, the ICD sends out a shock to get it back into rhythm.

The tiny ICD is implanted under the skin near the clavicle – in the upper part of the chest. The procedure is done under local anesthesia.

ICDs are recommended for patients experiencing severe ventricular tachycardia or ventricular fibrillation (a condition in which the heart beats rapidly and erratically, causing heart chambers to quiver and weakening the ability to pump blood).