Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
Comparative effects of extremely high power microwave pulses and a brief CW irradiation on pacemaker function in isolated frog heart slices.
Pakhomov AG, Mathur SP, Doyle J, Stuck BE, Kiel JL, Murphy MR · 2000
View Original AbstractUltra-high power microwave pulses produced only thermal heart effects in frog tissue, suggesting peak power alone doesn't create additional biological damage.
Plain English Summary
Researchers exposed isolated frog heart tissue to extremely high-power microwave pulses (up to 350 million watts per kilogram) and compared the effects to lower-power continuous microwave exposure. Both exposure types caused the same temporary changes in heart rhythm that were directly proportional to heating, with no additional effects from the ultra-high power pulses. This suggests that microwave effects on heart function are purely thermal (heat-related) rather than caused by the electromagnetic fields themselves.
Study Details
The present study attempted to reveal such effects by comparing the bioeffects of short trains of extremely high power microwave pulses (EHPP, 1 micros width, 250-350 kW/g, 9.2 GHz) with those of relatively low power pulses (LPP, 0.5-10 s width, 3-30 W/g, 9.2 GHz).
EHPP train duration and average power were made equal to those of an LPP; therefore both exposure mo...
The effect was proportional to microwave heating, fully reversible, and easily reproducible. The mag...
Within the studied limits, we found no indications of EHPP-specific bioeffects. EHPP- and LPP-induced changes in the pacemaker rhythm of isolated frog heart preparation were identical and could be entirely attributed to microwave heating.
Show BibTeX
@article{ag_2000_comparative_effects_of_extremely_3289,
author = {Pakhomov AG and Mathur SP and Doyle J and Stuck BE and Kiel JL and Murphy MR},
title = {Comparative effects of extremely high power microwave pulses and a brief CW irradiation on pacemaker function in isolated frog heart slices.},
year = {2000},
url = {https://pubmed.ncbi.nlm.nih.gov/10797453/},
}