Korean J Occup Environ Med.  2011 Dec;23(4):480-487.

A Case of Amyotrophic Lateral Sclerosis in a Worker Treating Pesticide Wastes

Affiliations
  • 1Department of Occupational and Environmental Medicine, School of Medicine, Kosin University, Korea. hedoc68@gmail.com

Abstract

BACKGROUND
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease involving the motor neuron of the cerebrum, brain stem, and spinal cord. It has been suggested that various occupational or environmental agents could be a cause of ALS. We report upon a case of a person contracting ALS who experienced a long-time exposure to pesticides, implying that pesticides are probable causal agents of ALS.
CASE REPORT
S: The patient has been experiencing shoulder pain and limitation of movement that started abruptly about three years ago. Over time, these symptoms have become aggravated despite ongoing therapies including medication. After two years, he was diagnosed with ALS through electromyography, nerve conduction velocity and many laboratory tests at a university hospital in Seoul. His social and medical history was non-specific. The patient had worked for about 15 years at a waste disposal site and mainly destroyed glass bottles containing pesticides. During this period, his respiratory tract and skin were exposed to various raw pesticides without appropriate personal protective equipment. He did this job one or two times a week and worked for two or more hours without a break. Through an investigation into the patient's working environment, significant levels of dichlorvos, one of the organophosphates, were detected.
CONCLUSIONS
The study results revealed that the patient was exposed to considerable doses of pesticides as opposed to men spraying pesticides. Although controversial, pesticide exposures have been associated with ALS. However, we suggest that in this case the possibility that these pesticide exposures acted as a causal agent for the diagnosed ALS based on plausible biological mechanisms and epidemiologic data.

Keyword

Amyotrophic lateral sclerosis; Causality; Occupational exposure; Pesticides

MeSH Terms

Amyotrophic Lateral Sclerosis
Brain Stem
Cerebrum
Contracts
Dichlorvos
Electromyography
Glass
Humans
Male
Motor Neurons
Neural Conduction
Neurodegenerative Diseases
Occupational Exposure
Organophosphates
Pesticides
Respiratory System
Shoulder Pain
Skin
Spinal Cord
Dichlorvos
Organophosphates
Pesticides
Full Text Links
  • KJOEM
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2024 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr