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    We read with interest the recent report by Smedley et al. on an interesting case of cerebral arterial gas embolism (CAGE) after pre-flight ingestion of hydrogen peroxide (H₂O₂). The authors discuss the safety of aero-medical transfer following H₂O₂ ingestion. We agree with the possible problems but the concern on the other side of the coin needs to be mentioned; can transfer be delayed is the big question? Indeed, as reported by others, ingestion of even a small amount of concentrated H₂O₂ can result in CAGE. Hence, whether aero-medical transfer proceeds or not, severe, life-threatening embolism can occur. Since it was reported that "complete neurologic recovery occurred quickly with hyperbaric therapy", this supports the contention that the fastest transfer of the patient for hyperbaric treatment should be the primary focus.


    Beuy Joob, Viroj Wiwanitkit. Cerebral arterial gas embolism, ingestion of hydrogen peroxide and flight. Diving and hyperbaric medicine. 2017 Mar;47(1):65-66

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    PMID: 28357828

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