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[Hyperbaric oxygen treatment of poisoning].

Experiments have suggested reduction of neurological sequelae from carbon monoxide (CO) poisoning by treatment with hyper-baric oxygen (HBO). Randomised clinical trials have, however, been ambiguous. The discrepancy may be explained by timing of HBO relative to exposure. For other asphyxiants data are too sparse for a qualified judgement. Until more evidence is available, we suggest that HBO is used exclusively for moderate and severe CO poisoning within a time window of 12 hours.