Neurological effects of chronic occupational exposure to alcohol mists and vapors in a machinist

Abstract Here we report a rare case of reversible neurological symptoms due to chronic ethanol vapor and mist exposure in a 50-year-old machinist who intentionally used undiluted 200 proof ethanol as a cutting fluid while turning metal machine parts on a toolroom lathe for a period of 3 years. Shortly after switching to ethanol as a cutting fluid, the worker began to experience central nervous system symptoms including headaches, fatigue, ataxia, and concentration and memory problems. Clinical neuropsychological assessment revealed mild deficits on tests of attention, executive function, and memory. The worker was subsequently advised to stop using ethanol as a cutting fluid. At follow-up after cessation of exposure the worker reported that his symptoms were remarkably improved.