Annals of Occupational and Environmental Medicine

Younghyu Choi

2 Articles

Performance of Neurobehavioral Tests Among Welders Exposed to Manganese: Youngwoo Jin, Yangho Kim, Kyoo Sang Kim, Euna Kim, Young Sook Cho, Yong Chul Shin, Changho Chai, Younghyu Choi, Se Hoon Lee, Young Hahn Moon; Korean Journal of Occupational and Environmental Medicine 1999;11(1):1-12. Published online March 31, 1999; DOI: https://doi.org/10.35371/kjoem.1999.11.1.1

To study neurobehavioral effects for manganese fume exposure of welders, we administrated questionnaire about subjective symptom, related with manganese exposure. Neurobehavioral Core Test Battery of World Health Qrganization(NCTB) and finger tapping for 98 welders and 29 non-welding workers. We adopted welding duration as a criterion for exposure assessment, because of the lack of the longitudinal valid data and differences in airborne concentrations of manganese in welding types, such as shielded metal arc and CO2 arc welding. Neurologic, musculoskeletal and concentration symptoms were significantly increased by increase of welding duration. Performance of finger tapping preferred hand, Santa Ana dexterity test preferred hand and correct number of pursuit aiming were significantly decreased by increase of welding duration. These results comparable with previous studies that suggest neurobehavioral test, especially motor test, to be an appropriate tool to detect early neurobehavioral abnormalities related with manganeses exposure.

Citations

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Manganese exposure and cognitive performance: A meta-analytical approach
Thomas Vlasak, Tanja Dujlovic, Alfred Barth
Environmental Pollution.2023; 332: 121884. CrossRef
Derivation of an occupational exposure level for manganese in welding fumes
Lisa A. Bailey, Laura E. Kerper, Julie E. Goodman
NeuroToxicology.2018; 64: 166. CrossRef
Neurobehavioral Deficits and Parkinsonism in Occupations with Manganese Exposure: A Review of Methodological Issues in the Epidemiological Literature
Robert M. Park
Safety and Health at Work.2013; 4(3): 123. CrossRef
Neuropsychological effects of low-level manganese exposure in welders
Wisanti Laohaudomchok, Xihong Lin, Robert F. Herrick, Shona C. Fang, Jennifer M. Cavallari, Ruth Shrairman, Alexander Landau, David C. Christiani, Marc G. Weisskopf
NeuroToxicology.2011; 32(2): 171. CrossRef
Occupational Psychiatric Disorders in Korea
Kyeong-Sook Choi, Seong-Kyu Kang
Journal of Korean Medical Science.2010; 25(Suppl): S87. CrossRef
Occupational Neurological Disorders in Korea
Eun-A Kim, Seong-Kyu Kang
Journal of Korean Medical Science.2010; 25(Suppl): S26. CrossRef
Exposure-Response Relationship and Risk Assessment for Cognitive Deficits in Early Welding-Induced Manganism
Robert M. Park, Rosemarie M. Bowler, Harry A. Roels
Journal of Occupational & Environmental Medicine.2009; 51(10): 1125. CrossRef
State-of-the-Science Review: Does Manganese Exposure During Welding Pose a Neurological Risk?
Annette B. Santamaria, Colleen A. Cushing, James M. Antonini, Brent L. Finley, Fionna S. Mowat
Journal of Toxicology and Environmental Health, Part B.2007; 10(6): 417. CrossRef
High signal intensity on magnetic resonance imaging as a predictor of neurobehavioral performance of workers exposed to manganese
Yong Chul Shin, Euna Kim, Hae-Kwan Cheong, Sungil Cho, Joon Sakong, Kyoo Sang Kim, Jung Sun Yang, Young-Woo Jin, Seong-Kyu Kang, Yangho Kim
NeuroToxicology.2007; 28(2): 257. CrossRef
Sequelae of fume exposure in confined space welding: A neurological and neuropsychological case series
Rosemarie M. Bowler, Sanae Nakagawa, Marija Drezgic, Harry A. Roels, Robert M. Park, Emily Diamond, Donna Mergler, Maryse Bouchard, Russell P. Bowler, William Koller
NeuroToxicology.2007; 28(2): 298. CrossRef
Issues in neurological risk assessment for occupational exposures: The Bay Bridge welders
Robert M. Park, Rosemarie M. Bowler, Donald E. Eggerth, Emily Diamond, Katie J. Spencer, Donald Smith, Roberto Gwiazda
NeuroToxicology.2006; 27(3): 373. CrossRef

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Carpal Tunnel Syndrome among Service and Manufacturing Workers with Repetitive Motion Tasks: Kyoo Sang Kim, Se Wi Lee, Younghyu Choi, Mi Ryeong Jin; Korean Journal of Occupational and Environmental Medicine 1998;10(4):505-523. Published online December 31, 1998; DOI: https://doi.org/10.35371/kjoem.1998.10.4.505

Abstract PDF

The objectives of this study were to investigate the prevalence and risk factors of occupationally related carpal tunnel syndrome (CTS) among workers employed in services and manufacturing industries analysing the sensitivity and specificity of clinical symptoms and signs. Three surveys were made for this study. The first survey was done for 1,447 workers employed by 25 companies. The jobs of the employees were repetitive works at VDT and assembly lines. Therefore, employees could be divided to two groups, doing repetitive works and non repetitive works. The second survey was made for 189 workers who were randomly selected from 517 workers complained some symptoms at their hands and wrists. We examined their symptoms and carried out neurological examinations for CTS (Tinel's sign, Phalen's sign, pin prick test, carpal compressive test, toniquet compression test). The third survey was made for nerve conduction study (NCS) for 57 workers who had shown positive signs for CTS. The main results of this study were as follows: 1. From the first survey, we have found that there were significant statistical differences in getting uncomfortable neuromuscular symptoms by sex, job type, total working hours during a week, duration of current work, and kinds of work. Odds ratio in male vs female, repetitive vs non repetitive, service vs manufacturing companies, total working hours during a week, and duration of current work were 1.867(95% CI=1.467-2.377), 1.680 (95% CI=1.121-2.279), 1.663(95% CI=1.213-2.279), 1.016(95% CI=1.006-1.027) and 1.283 (95% CI=1.097-1.501) respectively. 2. From the second survey, we have found that 46 peoples (25.0%) were positive for one or more than one signs in neurological examinations of NIOSH criteria. Positive findings from neurological examinations were high among workers of low level of education (p-value=0.008), manufacturing jobs (p-value=0.00), long hours a week (p-value=0.028), and long duration of current work (p-value=0.00). 3. From the third survey, we diagnosed 35 peoples (61.4%) had CTS by NCS. They had abnormally delayed latent period or velocity in median nerve conduction velocity.

Citations

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Distribution of age, gender, and occupation among individuals with carpal tunnel syndrome based on the National Health Insurance data and National Employment Insurance data
Il-Ho Lee, Young-Ki Kim, Dong-Mug Kang, Se-Yeong Kim, In-Ah Kim, Eun-Mi Kim
Annals of Occupational and Environmental Medicine.2019;[Epub] CrossRef
Changes in upper limb muscle activity during smartphone usage while in stable and unstable positions and during gait
You Lim Kim, Suk Min Lee, Hyun-Soo Lee, Juyeong Song, Si-On Song, Min-Ji Seol, Yu-Mi Jang, Jin-Sik Im, Ji-Woo Im
Physical Therapy Rehabilitation Science.2018; 7(3): 119. CrossRef
The comparison of muscle activity according to various conditions during smartphone use in healthy adults
You Lim Kim, Jaehyun Yoo, Sinwoo Kang, Taerim Kim, Namyeol Kim, Sojeong Hong, Wonjeong Hwang, Suk Min Lee
Physical Therapy Rehabilitation Science.2016; 5(1): 15. CrossRef
The incidence of carpal tunnel syndrome in patients with rheumatoid arthritis
Kwang-Hyun Lee, Chang-Hun Lee, Bong-Gun Lee, Jin-Sik Park, Wan-Sun Choi
International Journal of Rheumatic Diseases.2015; 18(1): 52. CrossRef

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