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Title: Prevention of inappropiate ICD shocks due to lead insulation failure by continuous monitoring and automatic alert.
Epworth Authors: Gelder, Robert
Other Authors: Gunderson, B.
Keywords: Algorithms
Clinical Alarms
Electric Conductivity
Electric Injuries
Electrodes Implanted
Equipment Failure
Lead Integrity Alert
Victorian Heart Centre, Epworth Hospital, Melbourne, Australia
Issue Date: Jun-2012
Publisher: Wiley
Citation: Pacing Clin Electrophysiol. 2012 Jun;35(6):e150-3
Abstract: Patients with implantable cardioverter defibrillator lead insulation failures may present with oversensing and/or abnormal impedance. The Lead Integrity Alert (LIA) monitors right ventricular pace/sense leads using both continuous oversensing and daily impedance measurementd. Oversensing consists of isolated short R-R intervals and nonsustained runs of short R-R intervals. The LIA algorithm has been studied for Sprint Fidelis conductor fractures, but not for lead insulation failures. We report on a patient with a failed St. Jude Riata™ ST lead (St. Jude Medical, St. Paul, MN, USA) connected to a Medtronic Virtuoso DR (Medtronic Inc., Minneapolis, MN, USA) with the LIA. Oversensing triggered the LIA, while the impedance trend was normal.
DOI: 10.1111/j.1540-8159.2011.03316.x.
PubMed URL:
ISSN: 0147-8389
Journal Title: Pacing and Clinical Electrophysiology
Type: Journal Article
Type of Clinical Study or Trial: Case Series and Case Reports
Appears in Collections:Cardiac Sciences
Health Administration

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