Abstract
A 75-year-old man was admitted to our hospital due to accidental ingestion of hydrogen peroxide. Although he suffered from repeated vomiting and abdominal fullness, signs of peritonitis were not detected. An abdominal CT examination showed obvious gas images in the gastroepiploic vessels and intrahepatic portal veins. Upper gastrointestinal endoscopy revealed mucosal redness, swelling, and erosion from the lower part of the esophagus to the middle body of the stomach, while there was no evidence of gastrointestinal tract perforation. We treated him non-operatively with a proton pump inhibitor and sodium alginate. On the next day, all of the hepatic portal venous gasses had disappeared on CT and his symptoms had improved. He was discharged on the fifth day after admission. When the hepatic portal gas associated with the ingestion of hydrogen peroxide is not combined with gastrointestinal perforation, conservative therapy can be performed, but it is necessary to observe the case carefully because it could be a preliminary symptom of gas embolism.
