A lead is a special wire that delivers energy from a pacemaker or an implantable cardiac defibrillator (ICD) to your heart. A lead extraction is a procedure to remove one of more of these leads when they are not working properly.
There are four primary reasons for a lead to not work properly:
- A lead no longer provides a reliable connection to the heart.
- A patient develops an infection of the pacemaker or ICD system.
- A large amount of scar tissue has formed around the tip of the lead; the lead requires more energy to function than the pacemaker or ICD can deliver.
- A damaged lead is blocking veins from entering your heart.