Computation of pacemakers immunity to 50 hz electric field: Induced voltages 10 times greater in unipolar than in bipolar detection mode

Cihan Gercek*, Djilali Kourtiche, Mustapha Nadi, Isabelle Magne, Pierre Schmitt, Martine Souques

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)
17 Downloads (Pure)

Abstract

Thisstudy aims to compute 50 Hz electric field interferences on pacemakers for diverse lead configurations and implantation positions. Induced phenomena in a surface-based virtual human model (standing male grounded with arms closed, 2 mm resolution) are computed for vertical exposure using CST EM® 3D software, with and without an implanted pacemaker. Induced interference voltages occurring on the pacemaker during exposure are computed and the results are discussed. The bipolar mode covers 99% of the implanted pacing leads in the USA and Europe, according to statistics. The tip-to-ring distance of a lead may influence up to 46% of the induced voltage. In bipolar sensing mode, right ventricle implantation has a 41% higher induced voltage than right atrium implantation. The induced voltage is in average 10 times greater in unipolar mode than in bipolar mode, when implanted in the right atrium or right ventricle. The electric field threshold of interference for a bipolar sensing mode in the worst case setting is 7.24 kV·m −1 , and 10 times higher for nominal settings. These calculations will be completed by an in vitro study.

Original languageEnglish
Article number19
Number of pages16
JournalBioengineering
Volume4
Issue number1
DOIs
Publication statusPublished - 1 Mar 2017
Externally publishedYes

Keywords

  • Active implantable medical devices
  • Cardiac implants
  • Electric field
  • Implanted cardiac defibrillators
  • Low frequency
  • Pacemaker

Fingerprint Dive into the research topics of 'Computation of pacemakers immunity to 50 hz electric field: Induced voltages 10 times greater in unipolar than in bipolar detection mode'. Together they form a unique fingerprint.

Cite this