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  • Title: [Vigilance against a highly lethal insecticide chlorfenapyr poisoning (report of 4 cases and literature review)].
    Author: Gong Y, Meng QB, Liu L, An YQ, Zhang R, Sun YQ, Su JL, Tian YP.
    Journal: Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi; 2021 Sep 20; 39(9):689-693. PubMed ID: 34624954.
    Abstract:
    In order to improve the clinical attention to the poisoning of chlorfenapyr, the diagnosis and treatment strategy of chlorfenapyr poisoning were discussed. This paper collected 4 cases of chlorfenapyr in the emergency department of the Second Hospital of Hebei Medical University and 4 cases of literature review, summarized the clinical characteristics of pesticide poisoning cases containing chlorfenapyr in China, and summarized and analyzed the clinical data of the cases. Seven of the 8 patients died from poisoning by chlorfenapyr. Exposure to chlorfenapyr through respiratory tract and digestive tract showed high mortality. Fever, hyperhidrosis, elevated muscle enzymes and progressive central nerve damage were its prominent clinical characteristics. Most of the initial symptoms of exposure were not serious. Some patients, especially those with low exposure dose, had a relatively stable stage with or without clinical diagnosis and treatment. In case of sweating, obvious fever and disturbance of consciousness, the condition would deteriorate rapidly, respiratory and circulatory failure and eventually die. With the increase of production capacity and market launch, people have more opportunities to be exposed to chlorfenapyr. It is urgent to strengthen the basic and clinical research of chlorfenapyr poisoning; Attention should be paid to the observation and treatment in the initial stable stage of poisoning, which can be used as a reference for the treatment of oxidative phosphoric acid dissolving coupling agent (sodium pentachlorophenol) poisoning. 为提高临床对虫螨腈中毒的重视，探讨虫螨腈中毒的诊断救治策略。本文收集河北医科大学第二医院急诊科接诊虫螨腈中毒患者4例和文献复习病例4例，总结国内含虫螨腈成分农药中毒病例的临床特点，并结合接诊病例临床资料进行归纳分析。8例虫螨腈中毒患者中死亡7例，呼吸道和消化道途径暴露虫螨腈均呈高致死性；发热、多汗、肌酶升高和进行性加重的中枢神经损害是其突出的临床特点；暴露初始症状多不严重，部分患者尤其暴露剂量低者，经或不经临床诊治存在一个相对稳定阶段，一旦出现大汗、明显发热、意识障碍则病情迅速恶化，呼吸循环衰竭并可导致死亡。随着产能和市场投放增加，人群暴露虫螨腈机会增多，迫切需要加强虫螨腈中毒的基础和临床研究；应当重视中毒初始稳定阶段的观察治疗，同为氧化磷酸化解偶联毒剂（五氯酚钠）中毒的救治方法有借鉴意义。.
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