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Toxic encephalopathy due to 1,1,1-trichloroethane exposure

G A Kelafant1, R A Berg, R Schleenbaker

  • 1Cardinal Hill Rehabilitation Hospital, Occupational Medicine Center, Lexington, Kentucky.

American Journal of Industrial Medicine
|March 1, 1994
PubMed
Summary
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Long-term exposure to 1,1,1-trichloroethane solvent caused significant memory and balance deficits in workers. These neurological and balance impairments suggest solvent-induced encephalopathy.

Area of Science:

  • Neuroscience
  • Occupational Health
  • Toxicology

Background:

  • Solvent exposure is a known risk factor for neurological impairment.
  • 1,1,1-trichloroethane is an industrial solvent with potential neurotoxic effects.

Purpose of the Study:

  • To evaluate the neurological and balance effects of long-term 1,1,1-trichloroethane exposure in workers.
  • To characterize the specific cognitive and postural deficits associated with this exposure.

Main Methods:

  • Neuropsychological testing using the Luria-Nebraska Neuropsychological Battery.
  • Platform posturography to assess balance components (vestibular, somatosensory, ocular).
  • Evaluation of 28 workers with documented high, long-term exposure.

Main Results:

Related Experiment Videos

  • Workers exhibited significant deficits in memory, intermediate memory, rhythm, and processing speed.
  • Balance assessment revealed impairments in vestibular, somatosensory, and ocular systems.
  • Reported symptoms included memory loss, disequilibrium, mood changes, and concentration difficulties.

Conclusions:

  • Long-term 1,1,1-trichloroethane exposure is associated with significant cognitive and balance impairments.
  • The observed neurological and postural deficits are consistent with solvent-induced encephalopathy.
  • Findings highlight the need for monitoring and prevention strategies for solvent-exposed workers.