Leads, Implantable Defibrillator/Cardiac Pacemaker

Definition : Leads designed to conduct electrical signals from the pulse-generating unit of an implantable defibrillator/cardiac pacemaker to the heart and also to conduct the bioelectric cardiac signals back to the unit. These leads typically consist of flexible wires that are completely isolated except at the electrode tip that makes contact with the heart. The leads are directly attached to the surface of the heart during open surgery (i.e., epicardial leads) or threaded into the heart through the vascular system, avoiding open-chest surgery. The other ends of the leads are attached through a connector to the pulse generator implanted in the abdomen or chest. A variety of lead systems, including single- and multiple-lead, subcutaneous array, and patch are available. The size, connector type, and other characteristics of the leads must be compatible with the pulse generator and the therapy prescribed.

Entry Terms : "Implantable Defibrillator/Pacemaker Leads" , "Defibrillator Electrodes, Transvenous" , "Defibrillation Electrodes" , "Electrodes, Defibrillation" , "Leads, Implantable Defibrillator/Pacemaker" , "Leads, Pacemaker, Implantable"

UMDC code : 17964

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