Inappropriate disabling of an ICD noise-detection algorithm in pacemaker-dependent patients

Nicolas Welte*, Eli S. Gang, Charles D. Swerdlow, Marc Strik, Pierre Bordachar, Sylvain Ploux

*Corresponding author for this work

Research output: Contribution to journalEditorialAcademicpeer-review


SecureSense is an implantable cardioverter defibrillator algorithm that differentiates lead-related oversensing from ventricular tachycardia/ventricular fibrillation by continuous comparison between the near-field (NF) and the far-field (FF) electrogram. If lead noise is identified, inappropriate therapy is withheld. Undersensing on the FF channel could result in inappropriate inhibition of life-saving therapy. Thus, the device automatically switches SecureSense to passive mode if undersensing on the FF channel is suspected. We report here the first cases of inappropriate automatic SecureSense deactivation due to misdiagnosed FF undersensing in pacemaker-dependent patients. Physicians should be aware that SecureSense does not withhold an inappropriate therapy for sustained oversensing in pacemaker-dependent patients.

Original languageEnglish
Pages (from-to)478-482
Number of pages5
JournalPacing and Clinical Electrophysiology
Issue number4
Publication statusPublished - Apr 2019


  • algorithm
  • defibrillation-ICD
  • electrograms
  • noise


Dive into the research topics of 'Inappropriate disabling of an ICD noise-detection algorithm in pacemaker-dependent patients'. Together they form a unique fingerprint.

Cite this