When Ventricular Safety Standby Does Not Work

J Cardiovasc Electrophysiol. 2017 May;28(5):574-575. doi: 10.1111/jce.13162. Epub 2017 Jan 27.

Abstract

Dual chamber pacemakers have inbuilt advanced safety systems such as ventricular safety standby (crosstalk detection) to prevent ventricular oversensing resulting in inappropriate pacing inhibition. We describe a case where this safety mechanism does not reliably work and the management required to rectify the situation in an educational format.

Keywords: clinical: implantable devices--biventricular pacing/defibrillation; clinical: implantable devices--pacemaker-bradyarrhythmias; crosstalk.

Publication types

  • Case Reports

MeSH terms

  • Action Potentials
  • Atrioventricular Block / diagnosis
  • Atrioventricular Block / physiopathology
  • Atrioventricular Block / therapy*
  • Cardiac Resynchronization Therapy Devices*
  • Cardiac Resynchronization Therapy* / adverse effects
  • Defibrillators, Implantable*
  • Electric Countershock / adverse effects
  • Electric Countershock / instrumentation*
  • Electrocardiography
  • Electrophysiologic Techniques, Cardiac
  • Female
  • Heart Rate
  • Humans
  • Middle Aged
  • Prosthesis Design
  • Prosthesis Failure*
  • Time Factors
  • Treatment Outcome
  • Ventricular Function, Left
  • Ventricular Function, Right