Why the study?
Does exposure to domestic electrical equipment and physiotherapy apparatus cause interference in patients with implanted 'Telectronics P6' ventricular synchronized pacemakers?
Does exposure to domestic electrical equipment and physiotherapy apparatus cause interference in patients with implanted 'Telectronics P6' ventricular synchronized pacemakers?
Domestic electrical appliances and microwave ovens do not cause clinically significant interference with Telectronics P6 ventricular synchronized pacemakers, suggesting interference hazards may be overstated.
Supports minimal domestic interference with Telectronics P6 pacemakers; single case leaves generalizability open.
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.
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Hunyor et al. (1971) studied this question.
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