Toxicity of salicylates

Area of Science:

• Toxicology
• Pharmacology
• Clinical Medicine

Background:

• Salicylate intoxication is a significant public health issue in Britain, accounting for approximately 10% of adult self-poisoning admissions.
• While accidental childhood poisonings have decreased due to safety measures, salicylate-related deaths remain a concern.
• Diagnosis relies on clinical presentation and confirmed by plasma salicylate levels.

Purpose of the Study:

• To review the epidemiology, diagnosis, and management of salicylate intoxication.
• To highlight the differences between acute and chronic salicylate poisoning.
• To emphasize the importance of timely diagnosis and treatment.

Main Methods:

• Review of patient history, clinical features, and laboratory measurements.
• Discussion of management strategies including gastric emptying, forced alkaline diuresis, hemodialysis, and hemoperfusion.
• Analysis of mortality rates and contributing factors.

Main Results:

• Acute salicylate poisoning has a 1% mortality rate in hospital-treated adults, often linked to neurological complications and metabolic acidosis.
• Forced alkaline diuresis is required in about 20% of adults for enhanced salicylate elimination.
• Chronic intoxication, though less common, can occur with therapeutic doses or topical applications, particularly in children and the elderly, and is often diagnosed late.

Conclusions:

• Prompt diagnosis and appropriate management are essential for improving outcomes in salicylate poisoning.
• Awareness of chronic salicylate intoxication is critical, especially in vulnerable populations, to prevent delayed treatment and increased morbidity/mortality.
• While acute poisoning management is established, vigilance for chronic cases is needed.