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Clinical data on three cases of occupationally induced PCB-intoxication
H Altenkirch1, G Stoltenburg, D Haller
1Department of Neurology, Spandau Hospital, Academic Teaching Hospital, Humboldt University Berlin.
Neurotoxicology
|October 1, 1996
Summary
Polychlorinated biphenyls (PCBs) exposure from transformers can cause persistent neurological damage. Even after exposure ends, patients experienced long-term sensorimotor polyneuropathy and encephalopathy.
Area of Science:
- Toxicology
- Neurology
- Environmental Health
Background:
- Polychlorinated biphenyls (PCBs) were widely used and subsequently banned, leading to extensive disposal efforts in Germany.
- Transformer repair and dismantling pose potential exposure risks for workers.
Observation:
- Three patients with significant skin exposure to Clophen A 30 (a PCB) during transformer work were studied.
- Exposure durations ranged from 4-5 to 20 years.
Findings:
- All patients developed distal-symmetrical sensorimotor polyneuropathy and encephalopathy.
- Neurological deficits persisted for 2-3 years in two patients and progressed for over 8 years in one patient after exposure cessation.
Implications:
- The long half-life and fat accumulation of PCBs like Clophen may cause persistent central nervous system (CNS) and peripheral nervous system (PNS) impairment.
- This highlights the need for continued vigilance regarding PCB exposure and long-term health monitoring.