Organophosphate (OP) poisoning is a major public health issue, particularly in agricultural communities and low-resource settings. With an estimated three million cases worldwide each year, and over 300,000 deaths, OP poisoning often results from pesticide exposure, suicide attempts, or accidental ingestion.
During All Saints University’s Research Day, Miracle Chinonso Oparah presented a compelling scoping review exploring how biomarkers—biological and metabolic indicators in the body—can be used to predict the severity and prognosis of OP poisoning cases. Her work could help reshape early diagnosis and treatment, especially in rural and resource-limited regions.
What Was the Study About?
The aim of the research was to identify low-cost, accessible biomarkers that could help:
- Determine how severe a patient’s OP poisoning is
- Predict outcomes such as recovery, respiratory failure, or mortality
- Reduce delays in diagnosis and improve emergency response
This kind of tool could be a game-changer for clinicians working in high-risk, low-resource environments.
Methodology
The review focused on published studies found in databases like PubMed, ScienceDirect, and Google Scholar, specifically examining:
- Organophosphate-related biomarkers
- Clinical correlations with patient outcomes
- Resource-friendly diagnostic tools
From this search, six key studies were selected and reviewed in detail.
Key Biomarkers Identified
The review revealed several significant biomarkers that could help clinicians assess OP poisoning cases quickly and accurately:
1. Serum Potassium (K⁺)
- A drop in serum potassium levels was strongly correlated with respiratory failure and death.
- Patients with potassium < 3.5 mmol/L had poor prognosis.
2. AST/ALT (Liver Enzymes)
- Elevated liver enzymes (AST/ALT) correlated with severity of symptoms on the Peradeniya OP Poisoning Scale (POP).
- Strong predictor of treatment outcomes.
3. Serum S100B & Neuron Specific Enolase
- Significantly higher in patients with neurological symptoms.
- Useful in assessing neurological damage and mortality risk.
4. Creatine Phosphokinase (CPK)
- Strong correlation with severity at admission and outcome.
- Useful for quick triage when combined with clinical presentation.
5. Serum Creatinine & Lactate Dehydrogenase
- Elevated levels linked to chronic exposure and organ failure.
Why This Matters
The identification of cost-effective and easy-to-measure biomarkers could dramatically improve how emergency teams respond to OP poisoning. In many rural areas where lab equipment and advanced diagnostics are unavailable, tools like serum potassium or CPK levels could guide early decisions, saving time and lives.
Conclusions
- There is strong scientific evidence linking specific biomarkers to OP poisoning outcomes.
- These markers can support faster triage, targeted treatment, and reduced mortality.
- Future clinical protocols could incorporate these findings, especially in under-resourced emergency settings.
“This review supports the use of metabolic markers as clinically and economically viable tools… preventing unnecessary intervention and saving scarce medical resources.”
– Miracle Chinonso Oparah
About the Researcher
Miracle Chinonso Oparah is a student at All Saints University, School of Medicine in Roseau, Dominica. Her work demonstrates the university’s dedication to impactful, global health-focused research and practical clinical training.
