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[Two cases of scleroderma associated with vibration syndrome]
Nihon Hifuka Gakkai Zasshi. the Japanese Journal of Dermatology
|February 1, 1989
Summary
Occupational vibration exposure may trigger scleroderma, a connective tissue disease. Two cases show vibration syndrome symptoms preceding sclerodermic skin changes, suggesting an etiological link.
Area of Science:
- Dermatology
- Occupational Medicine
- Rheumatology
Background:
- Vibration syndrome is a recognized occupational hazard.
- Scleroderma encompasses a spectrum of autoimmune connective tissue diseases characterized by fibrosis.
Observation:
- Two male patients with prolonged occupational exposure to vibrating tools developed vibration syndrome.
- Following vibration syndrome, both patients exhibited distinct patterns of sclerodermic skin manifestations.
Findings:
- Case 1, exposed to grinders and impact wrenches, developed generalized morphea with anti-centromere antibody positivity.
- Case 2, a jackhammer user, was diagnosed with progressive systemic sclerosis, showing anti-RNP antibody positivity and esophageal dilation.
- Histological examination revealed collagen bundle hyperplasia and homogenization in both patients.
Implications:
- These cases suggest a potential etiological relationship between vibration exposure and the development of scleroderma.
- Further research is warranted to elucidate the mechanisms linking occupational vibration and scleroderma.
- Occupational health surveillance should consider the risk of connective tissue diseases in workers exposed to prolonged vibration.