Failure to shock: What is the mechanism?

Estelle Torbey, Charles J. Love

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Background: The Biotronik DX lead is an attractive option due to its floating atrial bipole and its noninferiority compared to dual-chamber defibrillators. Methods: We describe the case of atrial undersensing by the DX lead resulting in failure of the device to appropriately treat a slow ventricular tachycardia. Conclusion: This case underlies the importance of understanding the limitations to each lead technology as well as the underlying assumptions inherent to detection enhancement algorithms.

Original languageEnglish (US)
Pages (from-to)669-671
Number of pages3
JournalPACE - Pacing and Clinical Electrophysiology
Issue number6
StatePublished - Jun 2018


  • defibrillation-ICD
  • ventricular tachycardia

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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