There are a number of common reasons for needing a replacement device:
If you feel a new device may suit your needs better, talk to your doctor. He or she is the best resource for information about having a replacement ICD or pacemaker procedure and whether a new or different device would be right for you.
Replacing a device is a surgical procedure and not without risks. Talking to your doctor about the risks and benefits is important. Depending on how the device system is functioning, your doctor may be able to leave the leads (wires) in place and simply disconnect the old device and replace it with a new one.
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