[abstract] A DATABASE OF OPEN-WATER, COMPRESSED AIR, MULTI-DAY REPETITIVE DIVES TO DEPTHS OF 100-190 FSW.

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[abstract] A DATABASE OF OPEN-WATER, COMPRESSED AIR, MULTI-DAY REPETITIVE DIVES TO DEPTHS OF 100-190 FSW.

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Title: [abstract] A DATABASE OF OPEN-WATER, COMPRESSED AIR, MULTI-DAY REPETITIVE DIVES TO DEPTHS OF 100-190 FSW.
Author: Fife, CE; Pollard, GW; Mebane, GY; Vann, RD; Boso, AE
Abstract: Evaluation of operational records can assist in the development of safe decompression procedures for deep multi-day repetitive air dives. From 1985 to 1989, 49 males and 13 females sponsored by the Institute of Nautical Archaeology performed 7,523 dives on compressed air scuba between 100 and 182 fsw. Each season divers made two 20 minute dives per day, 5-6 days per week, with a mean surface interval of 6 hours, for a cumulative bottom time of 2,507 hours. Three decompression profiles have been employed: (1) U.S.N. Standard Air Tables, modified with oxygen breathing (O2) at 10 fsw, 3,732 dives between 100-180 fsw (157 fsw mean); (2) statistically based schedules developed at the F.G. Hall Hyperbaric Center, with O2 at 20 and 10 fsw, 1,835 dives between 100 and 170 fsw (157 fsw mean); and (3) F.G. Hall schedule with all decompression at 20 fsw on O2, 1,956 dives between 110-182 fsw (mean 162 fsw). The incidence of decompression sickness by profile was: (1) 1 pain only (PO), 1 serious neurological (N) (.05%); (2) 1 PO, 0 N (.05%); and (3) 0 PO, 0 N. All incidents of DCS were treated satisfactorily in an on-site recompression chamber. The successful continuation of this underwater archaeological project suggests that the evolutionary development of decompression procedures for deep repetitive air diving, is possible with reasonable safety by statistical design, laboratory testing, and controlled operational use.
Description: Abstract of the Undersea and Hyperbaric Medical Society Annual Scientific Meeting held June 19-23, 1991 at San Diego Princess Resort, San Diego, CA.
URI: http://archive.rubicon-foundation.org/7445
Date: 1991

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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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