Malfunction of a demand pacemaker caused by phrenic nerve stimulation

J. M. Wicks, R. Davison, N. Belic

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Normal function of demand pacemakers may be interfered with in the presence of electromagnetic radiation. The pulses emitted by a phrenic nerve stimulator were found to interfere with the demand function of implanted ventricular-inhibited pacemakers in 14 of 27 patients tested; however, in only five was interference observed when the transmitter was more than 5 cm away from the pacemaker. Therefore, normal function of the demand pacemaker can be preserved in patients requiring both a phrenic nerve stimulator and a cardiac pacemaker with proper selection of the site for implantation.

Original languageEnglish (US)
Pages (from-to)303-305
Number of pages3
Issue number3
StatePublished - 1978

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Critical Care and Intensive Care Medicine
  • Cardiology and Cardiovascular Medicine


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