Acute Poisoning with Organophosphate Insecticides : A Report of 26 Cases and Literature Review
- Authors
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nabila choubane
University of Health Sciences, Faculty of Medicine Youcef El Khatib Department of Emergency Medicine, University Hospital of Algiers, Algeria
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- Keywords:
- organophosphate; poisoning; clinical characteristics; therapeutic management; outcomes
- Abstract
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Introduction : Acute organophosphate (OP) poisoning remains a major public health concern in regions with intensive agricultural activity. This study aimed to describe the clinical presentation, biological findings, therapeutic management, and outcomes of patients admitted with acute OP poisoning to a tertiary emergency department.
Methods: We conducted a retrospective descriptive study over 12 months (January–December 2023) at the University Hospital of Algiers emergency department. Patients with a confirmed diagnosis of acute OP poisoning were included. Data collected encompassed demographics, clinical presentation, laboratory findings, therapeutic interventions, and patient outcomes.
Results: Twenty-six patients were included, with a mean age of 29.1 ± 10 years. Females accounted for 69.2% of cases, and 65.4% of poisonings were intentional. Muscarinic manifestations were present in all patients, while central nervous system signs and nicotinic manifestations were observed in 42.3% and 19.2%, respectively. The mean plasma cholinesterase level was 800 IU/L. All patients received atropine; pralidoxime was administered in 19.2% due to limited availability. Mechanical ventilation was required in 34.6%, vasopressors in 23.1%, and anticonvulsants in 7.7% of cases. The overall mortality rate was 23.1%, and the mean hospital stay was 11 ± 2.3 days.
Conclusion: Acute OP poisoning is common, severe, and potentially fatal. Early recognition, prompt supportive care, and improved access to specific antidotes such as oximes are crucial. Preventive strategies, including pesticide regulation and psychosocial support, are essential to reduce morbidity and mortality.
- References
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1. Peter JV, Jerobin J, Nair A, et al. Clinical profile and outcome of patients with organophosphate poisoning needing intensive care. Indian J Crit Care Med. 2014;18(9):576–80.
2. Gunnell D, Eddleston M, Phillips MR, Konradsen F. The global distribution of fatal pesticide self-poisoning: systematic review. BMC Public Health. 2007;7:357. DOI: https://doi.org/10.1186/1471-2458-7-357
3. Mew EJ, Padmanathan P, Konradsen F, Eddleston M, Chang SS, Phillips MR, Gunnell D. The global burden of fatal self-poisoning with pesticides 2006–15: Systematic review. J Affect Disord. 2017;219:93–105. DOI: https://doi.org/10.1016/j.jad.2017.05.002
4. Patel V, Ramasundarahettige C, Vijayakumar L, et al. Suicide mortality in India: a nationally representative survey. Lancet. 2012;379(9834):2343–51. DOI: https://doi.org/10.1016/S0140-6736(12)60606-0
5. Eddleston M, Eyer P, Worek F, et al. Differences between organophosphorus insecticides in human self-poisoning: a prospective cohort study. Lancet. 2005;366(9495):1452–9. DOI: https://doi.org/10.1016/S0140-6736(05)67598-8
6. Karunarathne A, Jayarathne S, Kularatne SA, et al. Outcome of organophosphate poisoning in rural Sri Lanka: A tertiary care hospital-based study. Indian J Crit Care Med. 2021;25(Suppl 2):S139–47.
7. Banerjee I, Tripathi SK, Roy AS. Organophosphorus poisoning: A clinicopathological study in rural Bengal. N Am J Med Sci. 2012;4(3):147–50. DOI: https://doi.org/10.4103/1947-2714.93884
8. Shadnia S, Azizi E, Hosseini A, et al. Evaluation of oxidative stress and genotoxicity in organophosphate pesticide manufacturing workers. Hum Exp Toxicol. 2005;24(6):297–300. DOI: https://doi.org/10.1191/0960327105ht549oa
9. Vale JA, Meredith TJ, Buckley NA. Oximes in organophosphate poisoning: a systematic review of clinical trials. Clin Toxicol (Phila). 2016;54(8):627–34.
10. Buckley NA, Eddleston M, Li Y, et al. Oximes for acute organophosphate pesticide poisoning. Cochrane Database Syst Rev. 2011;(2):CD005085. DOI: https://doi.org/10.1002/14651858.CD005085.pub2
11. Roberts DM, Eddleston M, Wilks MF, et al. Clinical outcomes and kinetics of pralidoxime in acute organophosphate poisoning: a multicenter randomized controlled trial. Lancet. 2007;369(9564):1035–41.
12. Dawson AH, Eddleston M, Senarathna L, et al. Acute human lethal toxicity of pesticides: a prospective cohort study. Crit Care Med. 2010;38(3):832–8. DOI: https://doi.org/10.1371/journal.pmed.1000357
13. Pawar KS, Bhoite RR, Pillay CP, et al. Management of organophosphorus poisoning with a single bolus of atropine. Lancet. 2006;368(9553):2136–41. DOI: https://doi.org/10.1016/S0140-6736(06)69862-0
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- Additional Files
- Published
- 28-03-2026
- Section
- Retrospective or cross-sectional study
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