抄録
Paraquat-diquat products are used as herbicicides, but are toxic to humans, even in small amounts.These products mainly damage the lungs, liver, and kidneys. To treat intoxication resulting from ingestion of paraquat-diquat products, gastric lavage, intestinal lavage, forced diuresis, and blood purification are generally performed, or a laxative or an adsorbent may be used. However the associated mortality rate is approximately 70 %. A 51-year-old woman put a paraquat-diquat product accidentally into her mouth, but immediately spit it out. Spontaneous pain developed in the oral cavity after 2 days, and she visited our hospital 4 days later with this pain as the chief complaint. Erosive lesions had developed from the oral cavity to the pharynx, and the patient had severe haphalgesia and odynophagia. The patient was given a diagnosis of oral chemical injury and was immediately hospitalized to control the pain and monitor general condition. Blood examinations revealed acute renal failure. Four sessions of hemodialysis were performed. The patient's general health status improved, and the pain in the oral cavity subsided. She was discharged after 17 days.
