Rapid Initiation of Hyperbaric Oxygen Therapy for Multiple Simultaneous Cases of Acute Carbon Monoxide Poisoning at a...

Hyperbaric oxygen therapy (HBOT) is used to treat acute carbon monoxide poisoning. However, few reports have detailed its use in large patient cohorts, and optimal management guidelines have yet to be established. Herein, we report the clinical presentation and simultaneous treatment of multiple patients experiencing acute carbon monoxide poisoning on an offshore ship within the territorial waters of Japan.

Eleven patients were promptly transported to our hospital from a Japanese Maritime Self-Defense Force destroyer owing to accidental acute carbon monoxide poisoning. We opted to treat this incident as a mass casualty and immediately appointed a medical control officer and established medical teams. The medical control officer guided the general treatment plan and coordinated with the various sections, and the medical teams treated the patients. The patients were immediately administered normobaric oxygen via a facial mask. Those with the most severe conditions underwent simultaneous HBOT within 3 hours of hospital arrival. Two and 4 weeks after the second therapy session, all symptoms had resolved, with no physical or cognitive sequelae.

We report the successful treatment of patients with concurrent acute carbon monoxide poisoning via HBOT at a single facility. This report highlights the feasibility of efficacious treatment at a single facility in scenarios in which multiple individuals experience carbon monoxide poisoning. It is important that all staff members, including those in administration, understand the concept of disaster medicine. Additionally, in HBOT facilities, regular training is needed for events involving a large number of HBOT-indicated patients.