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Unique Features

Implantable Cardiac Devices

Lead Integrity Alert

Medtronic Lead Integrity Alert™ (LIA) significantly improves early identification of potential implantable cardioverter defibrillator (ICD) lead fractures.1

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Clinical Need

Clinical Need

"Cumulative lead malfunction incidence is 4.6% at 10 years across manufacturers. Lead malfunction resulted in inappropriate shocks in 76% of the cases."2

Only Medtronic Lead Integrity Alert automatically offers Proactive Protection: Less shocks. Improved monitoring. Advanced warning.1,3-5

Lia Operation

Important Safety Information

Once audible alert is triggered, patient should seek immediate medical attention to prevent delivery of an inappropriate shock. Lead Integrity Alert does not withhold therapy.

LIA offers added protection for ICD patients through more frequent audible alarms and is the first continuous ICD monitoring technology that triggers real-time device changes to reduce unnecessary shocks that could result from potential lead fractures.



Swerdlow CD, Gunderson BD, Ousdigian KT. Downloadable Algorithm to Reduce Inappropriate Shocks Caused by Fractures of Implantable Cardioverter-Defibrillator Leads. Circulation. 2008;118:2122-2129.


Eckstein J, et al. Necessity for Surgical Revision of Defibrillator Leads Implanted Long-Term Causes and Management. Circulation. 2008;117:2727-2733.


Wilkoff BL. Aggressively programmed implantable defibrillator detection and therapy reduces shocks compared to physician-tailored programming in primary prevention patients: results from the PREPARE trial. Presented at: Annual Meeting of the Heart Rhythm Society. May 10, 2007; Denver, CO.


Swerdlow CD, Gunderson BD, Stadler RW, et al. Inappropriate shocks due to Sprint Fidelis® ICD lead fracture may be reduced by programming more intervals for detection of ventricular fibrillation. Heart Rhythm. 2008;5 (Suppl 5S):S33. (Presented Abstract AB16-5).


Patel AS, et al. LIA for Vision 3D™ devices. Abstract: Modification to LIA Improves Performance – HRS Conference 2009.

How It Works


Case Studies