Biochemical indicators and the Peradeniya Organophosphate Poisoning scale in prediction and prognosis of organophosphorus poisoning: An observational prospective study

Objective: To study the value of some biochemical indicators and Peradeniya Organophosphate Poisoning scale in prediction and prognosis of organophosphorus poisoning. Methods: This was a hospital-based prospective, observational study. Various biochemical tests viz. complete blood count, random blood sugar, liver and renal function tests, creatine phosphokinase, and electrolytes were performed. Patients were assessed based on the Peradeniya Organophosphate Poisoning scale. All the patients were followed till the end point like recovery/death. Results: Out of the 100 patients, 72% were males and 28% were females. The majority of the patients were farmers and 21 to 30 years of age. Suicidal was the most common manner (92, 92%). Based on the Peradeniya Organophosphate Poisoning scale, 47% were mild, 34% moderate, and 19% severe. Serum creatinine, creatine phosphokinase, serum glutamic-oxaloacetic transaminase, serum glutamic pyruvic transaminase, and alkaline phosphatase levels showed a significant correlation with severity. Conclusions: Some biochemical indicators such as creatine phosphokinase, alkaline phosphatase can be used as prognostic markers of organophosphorus poisoning. The Peradeniya Organophosphate Poisoning scale can be used for assessing severity of the poisoning.