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  1. Decrements in cognitive performance in metal inert gas welders exposed to aluminium.

    Article - En anglais

    Objectives-Often little has been discovered of the cognitive functions affected by occupational toxins because many functions cooperate to produce the single performance scores typically reported from neuropsychological tests.

    To facilitate the interpretation of neuropsychological scores, the issue of occupational exposure to aluminium was examined with an approach intended to increase understanding of those cognitive processes that may be affected.

    Methods-The investigation was a cross sectional study of asymptomatic aluminium welders and a reference group of mild steel welders.

    Based on urinary aluminium concentrations, welders were classified into a reference (n=28), low (n=27), and high (n=24) exposure group.

    The mean urinary aluminium concentrations were 0.46,2.25, and 9.98 mumol/l, respectively.

    A comprehensive neuropsychological examination was undertaken to assess psychomotor function, simple visual reaction time, attention related tasks, verbal and visual or visuospatial abilities as well as verbal and visual learning and memory.

    Results

    Aluminium welders showed no impairment on the finger tapping, Santa Ana dexterity, simple visual reaction times, any of the verbal memory tasks, the similarities subtest of Wechsler adult intelligence scale, or the Stroop task.

    However, the low exposed group performed poorer on the memory for designs and on more difficult block design items demanding preliminary visuospatial analysis. (...)

    Mots-clés Pascal : Soudage, Aluminium, Métal léger, Exposition professionnelle, Gaz inerte, Médecine travail, Toxicité, Homme, Trouble cognition, Test neuropsychologique, Mémoire, Système nerveux pathologie

    Mots-clés Pascal anglais : Welding, Aluminium, Light metal, Occupational exposure, Inert gas, Occupational medicine, Toxicity, Human, Cognitive disorder, Neuropsychological test, Memory, Nervous system diseases

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0449629

    Code Inist : 002B03L05. Création : 22/03/2000.