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  • Title: [Angiopathy caused by vibrating tools: cold test and prostaglandin balance].
    Author: Taccola A, Pisati P, Zaliani A, Di Maio D, Pierro A.
    Journal: Med Lav; 1990; 81(1):45-9. PubMed ID: 2381371.
    Abstract:
    A study was made on a group of workers occupationally exposed to tools producing medium-to-low frequency vibrations, and on a comparable control group. The subjects underwent a plethysmographic examination with the cold test, which revealed a greater number of sphygmic alterations in the exposed group; at the same time spontaneous platelet aggregation, blood levels of 6-K-PGF-1 alpha and TXB2 and urinary levels of BTGU were determined in basal conditions and after the cold test. Except for the slight, and not statistically significant, increase in TXB2, the results did not reveal any alterations in the constituents of the prostaglandin balance after the cold test. This therefore indicates that biohumoral changes of this type were not involved in producing cold-induced vasomotor alterations in the group under study. However, further investigations are recommended which will take account of the age and working history of the subjects, and particularly of the physical characteristics of the vibrations produced by the tools used, especially the Hz number.
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