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INTERFERENCE HAZARDS WITH AUSTRALIAN NON‐COMPETITIVE (“DEMAND”) PACEMAKERS
Author(s) -
Hunyor Stephen N.,
Nicks Rowan,
Jones David,
Coles David,
Heath Janette
Publication year - 1971
Publication title -
medical journal of australia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.904
H-Index - 131
eISSN - 1326-5377
pISSN - 0025-729X
DOI - 10.5694/j.1326-5377.1971.tb92469.x
Subject(s) - diathermy , microwave , microwave oven , shortwave , electromagnetic interference , telecommunications , computer science , electrical engineering , engineering , optics , physics , radiative transfer
The effect was tested of domestic electrical equipment, physiotherapy apparatus—including shortwave diathermy, microwave and ultrasonic—and a microwave oven, on the operation of three Implanted “Telectronics P6” ventricular synchronized pacemakers. The only interference with the function of this model pacemaker occurred when the pads of the physiotherapy diathermy m. chine were applied directly to the knee of the patients. The pacemakers sped up in response to this stimulus (rate 136/min), but did not exceed their specified maximum triggered rate. Domestic electrical appliances, even at very close range to the pacemaker units or their leads, and the microwave oven were without effect. Recent medical and lay publicity has possibly led to the overstressing of interference hazards.