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Titolo:
SUSTAINED 35-GHZ RADIOFREQUENCY IRRADIATION INDUCES CIRCULATORY FAILURE
Autore:
FREI MR; RYAN KL; BERGER RE; JAUCHEM JR;
Indirizzi:
TRINITY UNIV,DEPT BIOL,715 STADIUM DR SAN ANTONIO TX 78212 OPERAT TECHNOL CORP SAN ANTONIO TX 78229 USAF,ARMSTRONG LAB,DIV RADIOFREQUENCY RADIAT BROOKS AFB TX 78235
Titolo Testata:
Shock
fascicolo: 4, volume: 4, anno: 1995,
pagine: 289 - 293
SICI:
1073-2322(1995)4:4<289:S3RIIC>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYMPATHETIC-NERVE ACTIVITY; HEATING RATE; TEMPERATURE; RESPONSES; INJURY; SKIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
32
Recensione:
Indirizzi per estratti:
Citazione:
M.R. Frei et al., "SUSTAINED 35-GHZ RADIOFREQUENCY IRRADIATION INDUCES CIRCULATORY FAILURE", Shock, 4(4), 1995, pp. 289-293

Abstract

The objective of this study was to determine the thermal distributionand concomitant cardiovascular changes produced by whole-body exposure of ketamine-anesthetized rats to radiofrequency radiation of millimeter wave (MMW) length. Rats (n = 13) were implanted with a flow probe on the superior mesenteric artery and with a catheter in the carotid artery for the measurement of arterial blood pressure. Temperature was measured at five sites: left (T-sl) and right subcutaneous (sides toward and away from the MMW source, respectively), colonic (T-cl), tympanic, and tail. The animals were exposed until death to MMW (35 GHz) at a power density that resulted in a whole-body specific absorption rateof 13 W/kg. During irradiation, the T-sl increase was significantly greater than the T-c increase. Heart rate increased throughout irradiation. Mean arterial pressure (MAP) was well maintained until T-sl reached 42 degrees C, at which point MAP declined until death. Mesenteric vascular resistance tended to increase during the early Stages of irradiation but began to decrease at T-sl greater than or equal to 41 degrees C. The declines in both mesenteric vascular resistance and MAP began at T-c < 37.5 degrees C; death occurred at T-c = 40.3 +/- .3 degreesC and T-sl = 48.0 +/- .4 degrees C. These data indicate that circulatory failure and subsequent death may occur when skin temperature is rapidly elevated, even in the presence of relatively normal T-c.

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Documento generato il 18/09/20 alle ore 20:03:28