◆ SpookStack

Approved For Release 208 dgt8-Pd ED Rpp96-00788R001300020001-6 ST-CS~-01-169-72 July 1972 combined with pains in the stomach which radiated into the right subcostal region. Menstrual disturbances (dysmenorrhea and prolonged amenorrhea) were detected in several women workers, but gynecological examination revealed no inflammatory or proliferative disease in any of them. Many men among the examinees complained of reduced sexual capacity. Two men, aged 46 and 48, with long work exposure on ultrasonic installations displayed sexual impotence. 6. (U) The organ and cellular effects of ultrasound have also been documented. Gorshkov (277) cites studies by Wolf in which. small aquatic animals were exposed to varied durations and intensities of 800 kHz ultrasound. The results Suggested that a species specific relationship may exist for sensitivity to ultrasonic irradiation. Gorshkov also cites experiments by Buchtala, who described spon taneous bone fracture in a young dog after ultrasonic irradiation, and Majnc, who exposed the extremities of a rabbit to ultrasound at 960 kHz, 6 watts/cm“, for 30-120 minutes. Edemas of soft tissues, ulceration, periosteal separation from the bone, and subendosteal hemorrhages resulted. Necrotization of the bone eventually followed, although the joint cartilage and epiphyseal growth plates remained completely unchanged. 7. (CU) Klupp (278) et al exposed the kidney region of animals to 2 MHz ultrasound at intensities greater than 5 watts/cm*. Morpho- logical changes were found in the primary convoluted tubules, the loops of Henle, the secondary convoluted tubules, and the descending arms of the loops of Henle. The connective tissue elements and collecting tubules of the medullary layer were found to be more resistant to ultrasound. Other investigators have observed dila- tation of the renal blood vessels, hemorrhages in the medullary and cortical layers, and degenerative changes in the epithelium of the urinary tubules following exposure to high intensity sonic waves. 8. (U) The behavioral effects of ultrasound on animals have been examined to a limited extent. 9. (U) Wood and Loomis (279) exposed fish to ultrasound. The fish showed initial disquietude, then rushed from side to side in the tank, swam to the surface and attempted to gulp greedily for air. Some, after as little as one minute of exposure, became sluggish, motionless, or showed symptoms of disturbed equilibrium and weak, irregular respiration. At times, sporadic attacks of renewed frenzied activity followed, with rapid respiration and cardiac activity. Subsequent increase in intensity killed the fish. 98 UNCLASSIFIED