Cardiac Implantable Electronic Device Replacement

Upgrading a device when the battery wears out or it malfunctions

If you have a pacemaker or implantable cardioverter defibrillator (ICD) to correct an abnormal heart rhythm (arrhythmia), there may come a time when the device needs to be replaced. This may happen if:

• The battery wears out
• The device malfunctions
• You need a device with different features

The doctors in our Electrophysiology Program have access to the latest technologies to care for patients with even the most complex arrhythmias. We’ll work with you to determine if and when your device needs to be replaced.

What to expect when we replace your cardiac implantable electronic device

An IV will be inserted to deliver medication and fluids. You’ll be given a sedative to help you relax, but you will remain awake. We’ll monitor your heart and blood pressure throughout the procedure.

The doctor will make an incision above the device. It will be disconnected from the leads and removed. The leads, which attach the device to the heart and deliver an electric shock when necessary, will be tested. If they’re functional, the new device will be connected to them and placed in the same position as the old device. If the leads need to be replaced, we’ll do that before placing the new device.

The procedure will take about two hours—longer if the leads need to be replaced. You will need to stay at least a few hours for observation or, in some cases, overnight.