Abstract
Enquiry into the occupational history of a patient presenting with stupor, hyperpyrexia and profuse sweating, and dying at a Winnipeg hospital a few hours later in coma, finally led to the identification of pentachlorophenol-a substance widely used as a wood preservative-as the cause of death of this worker and the cause of non-fatal intoxication in four other workers engaged by wood-processing plants. In these latter four cases the prominent clinical symptoms were sweating, weight loss and gastrointestinal complaints. A review of the literature revealed that pentachlorophenol exerts its toxicity following cutaneous absorption or inhalation by interference with oxidative phosphorylation, resulting in excessive release of heat. This substance has been the cause of several deaths in other countries. Observance of simple precautionary measures that ensure adequate ventilation and skin protection should suffice in making this industrially useful product safe.
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Selected References
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