Autonomic nervous system dysfunction in workers exposed to organic solvents

Area of Science:

• Occupational Health
• Cardiovascular Physiology
• Neurotoxicology

Background:

• Organic solvents are widely used in various industries.
• Long-term occupational exposure is a known risk factor for neurological disorders.
• Cardiovascular effects of chronic solvent exposure require further investigation.

Purpose of the Study:

• To assess cardiovascular function in workers with long-term occupational exposure to organic solvents.
• To compare cardiovascular parameters between exposed workers and healthy controls.
• To explore the relationship between peripheral neuropathy and cardiovascular function in this cohort.

Main Methods:

• Cardiovascular function tests were performed on 34 workers with mean 16.2 years of organic solvent exposure.
• Results were compared to those of 52 healthy subjects.
• Exposed subjects were assessed for evidence of peripheral neuropathy.

Main Results:

• Workers exposed to organic solvents exhibited lower cardiovascular parameters compared to healthy controls.
• Subjects with peripheral neuropathy showed even lower cardiovascular values than exposed subjects without neuropathy.
• A trend towards reduced cardiovascular function was observed with increased exposure duration.

Conclusions:

• Long-term occupational exposure to organic solvents is associated with impaired cardiovascular function.
• Peripheral parasympathetic nerve involvement may contribute to sensory-motor peripheral neuropathy in solvent-exposed workers.
• Further research is warranted to elucidate the mechanisms linking solvent exposure, neuropathy, and cardiovascular dysfunction.