Severe dyspnea and uncontrolled seizures following meperfluthrin poisoning: a case report

Abstract

Background Meperfluthrin is a novel sanitary cyhalothrin insecticide invented in China and has increasingly been used to produce liquid mosquito repellents. Oral meperfluthrin poisoning in human has rarely been reported. Here, we reported a case of meperfluthrin poisoning by ingestion of a meperfluthrin-based liquid mosquito repellent in a 16-month-old infant. Case presentation A 16-month-old boy with a history of accident ingestion of meperfluthrin was admitted to our hospital’s emergency department. He exhibited severe dyspnea, and lung radiograph showed multiple patchy and cord-like high-density shadows bilaterally in a short time. He also suffered 35 min of seizures which were finally controlled by the intravenous infusion of propofol. He was diagnosed with meperfluthrin poisoning, status epilepticus and severe pneumonia. After treated with methylprednisolone, aerosolized beclomethasone dipropionate, anti-infection, and some critical supportive therapy, the patient was in good health and showed no symptoms during 12 months of follow-up. Conclusions Meperfluthrin poisoning is rare. Oral meperfluthrin poisoning shows neurotoxic effects and pulmonary toxicity. Controlling seizures rapidly and ensuring an adequate oxygen supply are critical to the successful treatment.

Based on the Auxiliary Effect of X-Ray in the Treatment of Severe Pneumonia in Children with Arterial and Venous Blood Gas

“…It is mostly caused by certain pathogenic bacteria such as Staphylococcus pneumoniae and Haemophilus influenzae bacteria, which have relatively strong or weak pathogenic immunity, and they are more likely to occur in the lower lobe and dorsal side. Interstitial pneumonia is mostly exudative inflammation, which is often caused by infections such as viruses and mycoplasma [ 10 , 11 ]. Lobular pneumonia not only occurs in children but also occurs in the elderly, chronic patients, and other people with weakened immunity.…”

Case Report: Fatal Neurotoxicity Following Resmethrin Poisoning in a Child

“…The cranial CT and CSF analysis in most patients with pyrethroid poisoning were reported to be normal in previous studies (4,7,11). MRI might have more advantages than CT in evaluating the severity of neuron impairment.…”

“…MRI might have more advantages than CT in evaluating the severity of neuron impairment. Two previous studies reported abnormal signal intensity of brain MRI in children with pyrethroid poisoning (7,12). However, MRI was not performed in our study since the child was too ill to tolerate the MRI scan.…”