Diagnosis of ICD Lead Failure Using Continuous Event Marker Recording

R. P. Horton, R. C. Canby, C. A. Roman, Michael E Jessen, T. J. Schulte, R. L. Page

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


HORTON, R.P., et.al.: Diagnosis of ICD Lead Failure Using Continuous Event Marker Recording. Stored electrograms enhance the ability to evaluate therapy episodes in the third‐generation implantable cardioverter defibrillator. These electrograms are recorded from either the shocking or rate sensing leads, but not both. As a result, differentiation of certain types of sensing abnormalities may be difficult prior to surgical exploration. We present a case of rate sensing lead failure due to an insulation break. Several minutes of recording of the event marker in the laboratory failed to document any abnormal sensing; the diagnosis was made by recording the event marker on a 24‐hour continuous (Holter) monitor. The Holter monitor/event marker combination was of substantial diagnostic value and allowed for a more focused surgical evaluation and treatment.

Original languageEnglish (US)
Pages (from-to)1331-1334
Number of pages4
JournalPacing and Clinical Electrophysiology
Issue number6
StatePublished - Jun 1995


  • ambulatory monitor
  • event marker
  • implantable cardioverter defibrillator
  • oversensing

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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