TOXICOHISTOPATHOLOGY IN FATAL WEEDICIDE POISONING A CASE SERIES
DOI:
https://doi.org/10.48165/jfmt.2024.41.2.43Keywords:
weedicide, paraquat, poisoning, histopathology, SuicideAbstract
Paraquat is a herbicide widely utilized in agriculture. It poses significant public health challenges due to its high toxicity and associated mortality rate. Despite its classification as moderately hazardous by the WHO, its affordability and accessibility have led to its misuse for self-harm, especially in developing countries. This case series presents a comprehensive overview of three autopsies conducted on individuals with a history of paraquat ingestion. Clinically, paraquat intoxication is often challenging when history is not available. Autopsy findings across the cases showed congestion in major organs, with histopathological examinations revealing extensive damage, particularly in the lungs, liver, and kidneys, and unexpected cerebral effects. The discussion emphasizes the need for heightened safety protocols, increased awareness, and rigorous regulation to mitigate paraquat’s risks. These cases highlight the significance of thorough post-mortem investigations in aiding medical professionals in the management of paraquat poisoning and adding to the worldwide discussion on the safety and regulation of the herbicide.
Downloads
References
Paul P, Biju A. Paraquat poisoning: a case report. International Journal of Advances in Medicine. 2020 Oct 21;7(11):1759–61.
ZHOU Q, KAN B, JIAN X, ZHANG W, LIU H, ZHANG Z. Paraquat poisoning by skin absorption: Two case reports and a literature review. Exp Ther Med. 2013 Dec;6(6):1504–6.
Sukumar CA, Shanbhag V, Shastry AB. Paraquat: The Poison Potion. Indian J Crit Care Med. 2019 Dec;23(Suppl 4):S263–6.
Somu B, Halkur Shankar S, Baitha U, Biswas A. Paraquat poisoning. QJM: An International Journal
of Medicine. 2020 Oct 1;113(10):752.
Nayak VC, Bakkannavar SM, Sharma S, Sharma M, James RI, Banerjee B. PARAQUAT POISONING – A CASE REPORT. Indian Journal of Forensic and Community Medicine. :4.
Manju B, Jamal S, Lokesh NK. Paraquat Poisoning, What We Should Know: A Review Article. IJHS. 2022 Apr 13;(III):2274–84.
Bonvoisin T, Utyasheva L, Knipe D, Gunnell D, Eddleston M. Suicide by pesticide poisoning in India: a review of pesticide regulations and their impact on suicide trends. BMC Public Health. 2020 Feb 19;20:251.
Minutes of the 59th Meeting of the Central Insecticides Board (CIB) held on 12.11.2020 (uploaded on 01.12.2020) | Directorate of Plant Protection, Quarantine & Storage | GOI [Internet]. [cited 2022 Feb 11]. Available from: http://ppqs.gov.in/minutes-59th meeting-central-insecticides-board-cib-held 12112020-uploaded-01122020
Yano H, Kinjo M. Corrosive Airway and Esophageal Injury in Paraquat Intoxication. Intern Med. 2021 Apr 1;60(7):1135–6.
Kumar S, Gupta S, Bansal YS, Bal A, Rastogi P, Muthu V, et al. Pulmonary histopathology in fatal paraquat poisoning. Autops Case Rep. 11:e2021342.
Ahmad J, D’Angelo K, Rivas M, Mahal M, Nookala V, Kulakauskiene D, et al. Dilated Cardiomyopathy Associated with Paraquat Herbicide Poisoning. Clinics and Practice. 2021 Sep;11(3):679–86.
Teare D, Brown S. Poisoning by Paraquat. Med Leg J. 1976 Jun 1;44(2):33–47.
Conradi SE, Olanoff LS, Dawson WT. Fatality due to paraquat intoxication: confirmation by postmortem tissue analysis. Am J Clin Pathol. 1983 Nov;80(5):771– 6.
Gardiner AJS. Pulmonary oedema in paraquat poisoning. Thorax. 1972 Jan;27(1):132–5.
Matsumoto T, Matsumori H, Kuwabara N, Fukuda Y, Ariwa R. A histopathological study of the liver in paraquat poisoning—an analysis of fourteen autopsy cases with emphasis on bile duct injury. Acta Pathol Jpn. 1980 Nov;30(6):859–70.
Grant H, Lantos PL, Parkinson C. Cerebral damage in paraquat poisoning. Histopathology. 1980 Mar;4(2):185–95.
Moar JJ, Hill L. Histopathological Findings in a Fatal Case of Paraquat Poisoning. Am J Forensic Med Pathol. 2022 Mar 1;43(1):69–72.
Sousa S, Maia ML, Correira-Sá L, Fernandes VC, Delerue-Matos C, Calhau C, et al. Chemistry and Toxicology Behind Insecticides and Herbicides. In:
K. R. R, Thomas S, Volova T, K. J, editors. Controlled Release of Pesticides for Sustainable Agriculture [Internet]. Cham: Springer International Publishing; 2020 [cited 2022 Apr 28]. p. 59–109. Available from: https://doi.org/10.1007/978-3-030-23396-9_3
Carson DJL, Carson ED. The increasing use of paraquat as a suicidal agent. Forensic Science. 1976 Mar 1;7(2):151–60.
Anumeha DJ. Paraquat poisoning: A case report. Int J Med Anesthesiology. 2021;4(1):44–6.
Cha ES, Chang SS, Gunnell D, Eddleston M, Khang YH, Lee WJ. Impact of paraquat regulation on suicide in South Korea. Int J Epidemiol. 2016 Apr;45(2):470–9.
Chang SS, Gunnell D. Banning paraquat would prevent nearly 200 deaths from suicide per year in Taiwan. Taiwanese Journal of Psychiatry. 2019 Jul 1;33(3):119.