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L Alessio

Publications and source records attributed to L Alessio.

At least 181 records · Page 10Linked to original sources
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Neurobehavioral functions in operating theatre personnel exposed to anesthetic gases.

Neurobehavioral functions in paramedical operating theatre personnel were assessed in a cross-sectional survey. Sixty-two subjects (40 males and 22 females) occupationally exposed to anesthetic gases were examined and compared to 46 unexposed hospital workers (18 males and 28 females). The Simple Reaction Time (SRT) test was selected from the MANS battery (Milan Automated Neurobehavioural System). In order to evaluate acute and subacute types of effects on performance, the test was administered before and after the work shift, at the beginning and at the end of the working week. In addition, the complete battery was administered during one working day without exposure to anesthetic gases. On the last day of the working week, atmospheric nitrous oxide (N2Oa) ranged from 7 to 553 ppm (geometric mean 62.6), atmospheric ethrane (ETHa) ranged from 0.1 to 18.8 ppm (geometric mean 1.3), and urinary N2O (N2Ou) ranged from 4 to 297 micrograms/l (geometric mean 26.8). An impairment of performance on the SRT test was observed at the end of the working week in subjects exposed to anesthetic gases compared to controls. This alteration was observed also considering only the subjects exposed to less than 55 micrograms/l (which is the Italian exposure limit for N2Ou, equivalent to 100 ppm for N2Oa). No significant differences were observed for the other psychometric tests. No dose-effect relationships where found between SRT test score and the indicators of exposure (N2Oa, ETHa, N2Ou).(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMedDate not supplied

[Multiple occupational exposure to solvents].

This article review papers published over the last 20 years on multiple occupational exposure to solvents. At low-levels of exposure the toxicokinetic interferences between solvents have generally not been observed in man and presumably a threshold limit exists. Conversely, at exposure levels close to the "limit values" metabolic interference has sometimes been observed and the behaviour of the biological indicators differs from what would be expected. Toxicodynamic interference between solvents can give rise to additive, potentiation, synergistic, antagonistic effects. For the identification of "limit values", it has generally been suggested in the literature that the possible effects deriving from multiple exposure be considered as additive. However, numerous potentiation effects have frequently been reported for combined exposure to substances of widespread use. In this paper lists of multiple exposure in which the doses of the substances, the types of interferences and the behaviour of the biological levels have been drawn up and proposed as a tool for easy consultation.

Alcohol Drinking↗