Related Experiment Video
Updated: Jun 28, 2026

Halogenated Agent Delivery in Porcine Model of Acute Respiratory Distress Syndrome via an Intensive Care Unit Type Device
Published on: September 24, 2020
Portal venous gas after ingestion of concentrated hydrogen peroxide
Ting-An Chen1, Yen-Wen Chen2, Yang Ho1
1Department of Occupational Medicine and Clinical Toxicology, Taipei Veterans General Hospital, Taipei, Taiwan.
Introduction:
Ingestion of concentrated hydrogen peroxide can cause corrosive injury and rapid gas formation, leading to intramural gas and portal venous gas. While portal venous gas reflects intravascular gas formation, its relationship with systemic gas embolism remains uncertain.
Case Summary:
A 37-year-old man ingested 50% hydrogen peroxide and presented with vomiting and abdominal distension. Computed tomography demonstrated intramural gas and portal venous gas, and endoscopy showed corrosive injury. Hyperbaric oxygen therapy was initiated but was not completed initially. Repeat imaging demonstrated persistent intramural gas, and a second hyperbaric oxygen therapy session was performed. Follow-up imaging demonstrated complete resolution.
Images:
Serial computed tomography imaging demonstrated intramural gas and portal venous gas at presentation, persistence at six hours, and complete resolution on follow-up imaging.
Conclusion:
Hydrogen peroxide ingestion may result in corrosive injury and extensive portal venous gas. Early imaging and endoscopic assessment are important, and hyperbaric oxygen therapy may be considered in selected patients.
More Related Videos
14:52Recording Brain Electromagnetic Activity During the Administration of the Gaseous Anesthetic Agents Xenon and Nitrous Oxide in Healthy Volunteers
Published on: January 13, 2018
05:43Topical Airway Anesthesia for Awake-endoscopic Intubation Using the Spray-as-you-go Technique with High Oxygen Flow
Published on: January 13, 2017
Related Concept Videos
Prevention of Further Absorption of Poison
Hyperpnea and Hyperventilation
Autoxidation of Ethers to Peroxides and Hydroperoxides
Peroxisomes
Pneumothorax-I
Pneumothorax can be even further classified as spontaneous, traumatic, and tension pneumothorax.
Esophageal Varices-I: Introduction