Intermittent High Impedance from Lead-Device Compatibility Problem

The reliability of an implantable cardioverter defibrillator (ICD) system depends on the function of its components, including the pulse generator and ICD lead(s). The ICD lead is the critical interface linking a pulse generator to the myocardium and is used for delivery of short direct current electrical pulses including a high-energy pulse for lethal arrhythmia termination and a low-energy pulse for pacing. However, an ICD lead is the weakest link in all ICD systems. Lead failure rates range from 10-50% during long-term follow up (1).

Source: Heart Rhythm - January 29, 2019 Category: Cardiology Authors: Tanyanan Tanawuttiwat, Ronald D. Berger, Charles J. Love Source Type: research