野外與登山醫學----14---WMS 2019 update AMS/HACE Treatment Portable hyperbaric chambers 14

Portable hyperbaric chambers Portable hyperbaric chambers are effective for treating severe altitude illness69,70 but require constant tending by care providers and are difficult to use with claustrophobic or vomiting patients. Symptoms may recur when individuals are removed from the chamber,71 but this should not preclude use of the chamber when indicated. In many cases, ill individuals may improve sufficiently to enable them to assist in their evacuation and descend once symptoms improve. Use of a portable hyperbaric chamber should not delay descent in situations where descent is required. Recommendation. When available, portable hyperbaric chambers should be used for patients with severe AMS or HACE when descent is infeasible or delayed and supplemental oxygen is not available. Recommendation Grade: 1B