Comparative effects of extremely high power microwave pulses and a brief CW irradiation on pacemaker function in isolated frog heart slices.
Pakhomov AG et al. · 2000
Researchers compared extremely high power microwave pulses (EHPP) with low power pulses (LPP) at 9.2 GHz on isolated, spontaneously beating frog heart slices. Both exposure types produced the same temperature rise because EHPP train duration and average power were matched to LPP. The effects were proportional to heating, fully reversible, and reproducible with no delayed or irreversible effects observed. A single EHPP train or LPP immediately decreased the inter-beat interval in most cases. Temporary arrest of beats could be observed when microwave heating exceeded physiologically tolerable limits, regardless of exposure type.