When pacemaker leads are extracted with a laser
system, the laser
is mounted on a catheter that is inserted via a central vein
either in the groin, neck, or below the collarbone. The catheter is positioned around the pre-existing lead and a laser is used to sever the scar tissue that attaches the lead tip to the heart muscle. The laser is contained within the catheter. An infected pacemaker means that either the pacemaker battery/generator is infected or the lead itself is infected.