[Five cases of acute poisoning caused by inhalation of acrolein gas].

Acrolein is a highly toxic chemical substance commonly found in industrial production. This article analyzes the clinical data of 5 patients suspected of acute acrolein poisoning. The patients presented symptoms such as bilateral bronchitis, cyanosis of the lips and face, pharyngalgia, chest tightness, shortness of breath, etc. Severe poisoning patients also experienced acute respiratory failure and acute respiratory distress syndrome (ARDS). After comprehensive treatments including high-flow humidified oxygen inhalation, corticosteroid pulse therapy, and blood purification, 4 of the moderate-to-severe poisoning patients gradually improved and were discharged from the hospital, while 1 severe poisoning patient significantly improved after treatment with extracorporeal membrane oxygenation (ECMO), but died later due to secondary infection. This article provides valuable experience for clinicians in identifying, diagnosing, and treating acrolein poisoning, and highlights the risk of secondary infection in severe patients during treatment, which is significant for improving the success rate of treatment.