A 62-year-old man suffered poisoning from 30ml of calcium polysulfide‘610-happu®’, which was sold as a common bath agent, agricultural product, and fungicide. Though a fatal dose of calcium polysulfide is reported to be 50-150ml, he developed cardiopulmonary arrest (CPA) 10 minutes after the intake of“610-happu”and survived with aggressive supportive therapy. Calcium polysulfide reacts with stomach acid and generates hydrogen sulfide. Hydrogen sulfide poisoning was thought to have caused the CPA. After resuscitation, disseminated intravascular coagulation was developed. On the 6th day after admission to the ICU, serum amylase elevated. Abdominal CT revealed a small amount of ascites and no signs of pancreatitis. On Day 19, we detected pancreatic pseudocyst formation. It was suspected that gastric mucosal burn had developed a perforation of the posterior wall, followed by pancreatitis. Both respiratory arrest by hydrogen sulfide and corrosive chemical injury of the stomach due to a small amount of calcium polysulfide poisoning were observed.
