Annals of Occupational and Environmental Medicine

Du Shin Jeong

2 Articles

Three Cases of Work-Related Suprascapular Entrapment Neuropathy: Du Shin Jeong, Ki Bum Sung, Hyun Kil Shin, Moo Young Ahn, Hyeong Su Kim, Young Eui Hong; Korean Journal of Occupational and Environmental Medicine 1999;11(4):585-593. Published online December 31, 1999; DOI: https://doi.org/10.35371/kjoem.1999.11.4.585

Abstract PDF: OBJECTIVES
Entrapment of the suprascapular nerve is frequently overlooked in the differential diagnosis of shoulder pain.
METHODS
Suprascapular entrapment neuropathy is a well-defined clinical entity and EMG and NCV is used to confirm a diagnosis. But the diagnosis is typically not considered until patients develop severe weakness secondary to atrophy of the spinous musculature that the nerve supplies.
RESULTS
A narrow suprascapular notch has rarely been reported as a work-related factor of this entrapment neuropathy. Diagnosis of suprascapular entrapment neuropathy is based on the patients' clinical course, neurologic, radiologic, and electrophysiologic findings. One of the most helpful evaluations was the anteriorposterior projection with the X-ray tube angled 15-30 degree caudally. The suprascapular entrapment neuropathy is relatively uncommon entity of shoulder discomfort (pain, weakness, and atrophy).
CONCLUSIONS
If the worker who used his shoulder joint repetitiously having the shoulder pain and muscle weakness, we must rule out the suprascapular entrapment neuropathy. And it is needed to evaluate the motions which cause suprascapular entrapment neuropathy as the ergonomic factor.

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Comparison of Renal Function Indices Between Occupationally lead Exposed Females and Healthy Non-exposed Females: Du Shin Jeong, Joo Hee Park, Kyu Dong Ahn, Byung Kook Lee, Joung Soon Kim; Korean Journal of Occupational and Environmental Medicine 1994;6(2):153-165. Published online September 30, 1994; DOI: https://doi.org/10.35371/kjoem.1994.6.2.153

This study was to investigate the effect of lead on the selected clinical renal function in female lead workers. The 123 female lead workers from 9 lead industry and 177 females who were not occupationally exposed were examined. Females who had history of renal disease or oral medication were excluded. Blood lead, zinc protoporhphyrin in blood, delta-aminolevulinic acid and haemoglobin were examined as of lead exposure indices and blood urea nitrogen, serum creatinine, serum uric acid and urine protein were examined as of renal function indices. Mean concentration of lead were 40.7(+/-13.02)ug/dl for lead workers and 10.7(+/-3.56)ug/dl for non-lead workers. Differences between lead workers and non-lead workers in blood lead, zinc protoporhphyrin in blood and delta-aminoleuvulinic acid were statistically significant. There were significant differences between lead workers and non-lead workers in blood urea nitrogen, serum creatinine, serum uric acid except urine protein but their mean concentrations were all within normal limits. Serum creatinine and urine protein were not increasing according to the increasing blood lead. When cut off points of 20mg/dl in blood urea nitrogen, 1.2mg/dl in serum creatine, 7.0mg/dl in serum uric acid, 8.0mg/dl in urine protein and 40ug/dl in blood lead, 100ug/dl in zinc-protoporhphyrin in blood, 7.0mg/l in delta-aminoleuvulinic acid were accepted, comparison between frequencies of blood urea nitrogen, serum creatine, serum uric acid, urin protein by the level of blood lead, zinc-protoporhphyrin in blood and delta-aminoleuvulinic acid respectively was not statistically different. There were no dose-repsonse relationships in risk ratios by the level of blood lead and zinc-protoporphyrin in blood respectively. In summary, there were no significant effect of lead on the selected clinical renal function among the female lead workers at level of blood lead 40ug/dl that is the permissible level of lead poisoning in Korea.

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Pollutant levels in ambient air and blood in Korea
Chan-Seok Moon, Masayuki Ikeda
Environmental Health and Preventive Medicine.1996; 1(1): 33. CrossRef

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