Organophosphate poisoning in Perth, Western Australia, 1987-1996

Area of Science:

• Toxicology
• Clinical Medicine
• Public Health

Background:

• Organophosphate (OP) poisoning poses a significant public health risk.
• Understanding the clinical presentation and management of OP poisoning is crucial for improving patient outcomes.

Purpose of the Study:

• To review the presentation and management of organophosphate poisoning cases.
• To compare outcomes between deliberate ingestion and accidental exposure.
• To identify demographic factors associated with severe OP poisoning.

Main Methods:

• Retrospective review of 69 patient case notes admitted with OP poisoning.
• Data collected over a 10-year period from four tertiary teaching hospitals in Perth, Western Australia.
• Analysis of patient demographics, management, complications, and outcomes.

Main Results:

• Deliberate ingestion (25 patients) primarily involved men aged 30-50 years, with 88% requiring Intensive Care Unit (ICU) admission and a 2-death mortality rate.
• Accidental exposure (44 patients) mainly affected children, with shorter ICU stays and no reported deaths.
• Common complications included respiratory failure, convulsions, and aspiration pneumonia, necessitating intubation and ventilation in 16% of patients.

Conclusions:

• Deliberate organophosphate ingestion is significantly more toxic than accidental exposure.
• Men aged 30-50 years are the primary demographic for suicide attempts with OPs, experiencing severe complications and mortality.
• Effective management strategies are vital for reducing morbidity and mortality in organophosphate poisoning.