Bradycardia And Decreased Pulse Pressure In Rats Exposed To High Power Microwaves

Autor: D.O. Brown, C.E. Johnson, Shin-Tsu Lu, E.C. Elson, S.P. Mathur
Rok vydání: 2005
Předmět:
Zdroj: Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Volume 13: 1991.
DOI: 10.1109/iembs.1991.684285
Popis: A hypothesis of microwave-induced circulatory under perfusion was tested in ketamine anesthetized rats whose heart rate, mean arterial pressure, pulse pressure, respiration rate and body temperatures were monitored continuously. Fifty-eight ventral head and neck exposures to 1.25 GHz microwaves were performed in a waveguide. Respiration rate and mean arterial pressure were not altered by microwaves. Decreased heart rate (bradycardia) and decreased pulse pressure were noted in rats with microwave-induced hyperthermia. Bradycardia without changes in pulse pressure was found in rats in absence of microwave-induced hyperthermia. Bradycardia and decreased pulse pressure can suppress cardiac output.
Databáze: OpenAIRE