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University of Western Ontario, Department of Anesthesia and Perioperative Medicine, London Health Sciences Centre, London, Ontario
Address correspondence to Philip M Jones, 43 Cheswick Circle, London, Ontario, Canada, N6E 3L9. Address email to philipjones{at}tricolour.queensu.ca
We report a venous oxygen embolism that occurred in a 66-yr-old man after 60 mL of 3% hydrogen peroxide was injected into a perianal fistula intraoperatively to locate its internal opening. The diagnosis was made after detecting hypoxemia, decreased end-tidal carbon dioxide tension, systemic hypotension, increased central venous pressure, and a new heart murmur. The patient recovered quickly and had no long-term sequelae. Oxygen embolism is a potentially fatal complication that can develop when hydrogen peroxide is used near venous spaces, and clinicians should be aware of the potential dangers when using this seemingly innocuous chemical.
IMPLICATIONS: Hydrogen peroxide is used intraoperatively and perioperatively for the identification of fistula tracts. A venous oxygen embolism occurred in a 66-yr-old man after the intraoperative injection of 60 mL 3% hydrogen peroxide into an enterocutaneous fistula. The relevant aspects of the diagnosis and treatment of oxygen embolism are discussed.
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