Evaluation of the effects of electric fields on implanted cardiac pacemakers. Final report
Technical Report
·
OSTI ID:5820603
The effects of extra high voltage (EHV) transmission line electric fields on pacemaker function were evaluated in 11 patients with seven different implanted pacemaker models from four manufacturers. Alteration in pacemaker function was demonstrated in five unipolar units (three different models) from two manufacturers during exposure to electric fields ranging from 2 to 9 kV/m, with total body currents from 47 to 175 ..mu..A. These electric fields and body currents are representative of values that can be encountered by individuals standing beneath EHV transmission lines. Transient alterations in pacemaker function observed in this study included inappropriate triggered activity, inhibition of impulse generation, reduction in rate, and reversion from demand to asynchronous mode. Electromagnetic interference from high voltage transmission lines can induce alterations in pacemaker function in certain designs of these devices. However, pacemaker manufacturers can incorporate appropriate circuits in the pacemaker design to eliminate this problem. 8 references.
- Research Organization:
- Rochester Univ., NY (USA)
- OSTI ID:
- 5820603
- Report Number(s):
- EPRI-EA-3917; ON: TI85920546
- Country of Publication:
- United States
- Language:
- English
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