[abstract] FEASIBILITY OF PRECAUTIONARY SAFETY STOPS ON 100% OXYGEN AND IN WATER RECOMPRESSION FOR TREATMENT OF DECOMPRESSION ILLNESS IN REMOTE LOCATIONS.

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[abstract] FEASIBILITY OF PRECAUTIONARY SAFETY STOPS ON 100% OXYGEN AND IN WATER RECOMPRESSION FOR TREATMENT OF DECOMPRESSION ILLNESS IN REMOTE LOCATIONS.

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Title: [abstract] FEASIBILITY OF PRECAUTIONARY SAFETY STOPS ON 100% OXYGEN AND IN WATER RECOMPRESSION FOR TREATMENT OF DECOMPRESSION ILLNESS IN REMOTE LOCATIONS.
Author: Potkin, R; Wells, M
Abstract: BACKGROUND: Divers taking a precautionary safety stop at 15 fsw would benefit from using enriched air up to 100% oxygen as the breathing gas. This would enhance off gassing of nitrogen. In water recompression (IWR) to treat decompression illness, has been discouraged by the diving medical community until recently (Workshop of the Management of Mild or Marginal DCI in Remote Locations, May, 2004, Sidney, Australia.) In the absence of a nearby recompression chamber, it may be medically beneficial to recompress in the water, rather than delay potential life saving treatment. IWR breathing oxygen rich mixtures up to 100% is a much more effective procedure than breathing air. (Moon and Gorman, in Bennett and Elliott’s Physiology and Medicine of Diving, ed Brubakk A, Neuman, T. Saunders, 5th edition, 2003). The suggested initial treatment depth for IWR on 100% is 30 fsw for 30 minutes with possible extensions of 30 to 60 minutes using a full face mask with a standby diver. The ascent rate is 4 minutes/fsw (Edmonds) or 60 minute stops at 20 and 10 fsw respectively (Navy Department 1999a). METHOD: Commercially available equipment were evaluated. Essential equipment for IWR using oxygen include adequate thermal protection, an adequate supply line, supply of oxygen, and closed or semi-closed rebreathers or open circuit with full face mask with a non return valve. One major problem with IWR using enriched air is providing adequate oxygen supply and storage. Oxygen concentrators with booster pumps providing concentrations up to 100% as the breathing gas are currently commercially available making precautionary safety stops on 100% oxygen and IWR feasible. Barriers to IWR include equipment cost, space on board the dive boat and thermal protection for the diver. CONCLUSION: Currently available oxygen concentrators and booster pumps, and other diving equipment, make precautionary safety stops on 100% oxygen and IWR for mild to moderate DCS feasible.
Description: Abstract of the Undersea & Hyperbaric Medical Society 2008 Annual Scientific Meeting June 26-28, 2008 Salt Lake City Marriott Downtown, Salt Lake City, Utah.
URI: http://archive.rubicon-foundation.org/7942
Date: 2008

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  • UHMS Meeting Abstracts
    This is a collection of the published abstracts from the Undersea and Hyperbaric Medical Society (UHMS) annual meetings.

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