[abstract] NO-STOP REPETITIVE N2/O2 DIVING WITH SURFACE INTERVAL O2 (SIO2): PHASE II.

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[abstract] NO-STOP REPETITIVE N2/O2 DIVING WITH SURFACE INTERVAL O2 (SIO2): PHASE II.

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Title: [abstract] NO-STOP REPETITIVE N2/O2 DIVING WITH SURFACE INTERVAL O2 (SIO2): PHASE II.
Author: Vann, RD; Gerth, WA; Southerland, DG; Stanton, GR; Pollock, N; Kepper, W; Heinmiller, P
Abstract: Phase II was a field trial of SIO2 at Wakulla Springs, FL with depth-time recording by Orca Delphi dive computers. 8 divers were to make 3 dives/day for 6 days with new divers each week for 4 weeks. Phase II profiles were similar to Phase I (N2/O2 at depth) with open-water modifications. [table] D1, T1, A/O2/A, N, D2, T2, A/O2/A, N, D3, T3, A/O2/A, N; M: 80, 51, 5/35/25, 21, 80, 37, 5/35/25, 21, 80, 37, 5/35/-, 19; T: 120, 25, 5/30/95, 18, 120, 22, 5/30/95, 17, 120, 22, 5/30/-, 14; W: 80, 51, 5/35/25, 21, 80, 37, 5/30/95, 21, 120, 22, 5/30/-, 21; T: 120, 25, 5/30/15, 20, 120, 18, 5/30/15, 20, 120, 17, 5/30/-, 20; F: 80, 51, 5/30/95, 20, 80, 40, 5/35/25, 19, 120, 20, 5/30/-, 18; S: 80, 51, 5/30/95, 18, 80, 40, 5/30/95, 18, 80, 40, 5/30/-, 18; -, 80, 35, 5/35/-, 1 Convulsion A/O2-Air&O2 times, min.; -, 120, 25, 5/30/95, 4, 120, 25, 5/30/-, 1 DCS in 4 Dives [end table] One subject convulsed after 35 min at 80 fsw (36.8% O2, PIO2=1.26 ATM). Upon rescue, he admitted to a seizure history and current anti-convulsant medications. One shoulder pain incident occurred when a subject overstayed her 2nd dive bottom time at 120 fsw by 3 min (25 vice 22). Precordial Doppler bubble grades were (DCIEM protocol): Zero-77%; I=11.9%; II=6.6%; III=4.4%; IV=0%. Pre and post CO diffusion studies indicated no evidence of pulmonary O2 toxicity. Supported by NOAA/NURP at UNC-W, NA88AA-D-UR004.
Description: Abstract of the Undersea and Hyperbaric Medical Society, Inc. Annual Scientific Meeting held June 23-27, 1992. Hyatt Regency Bethesda Hotel, Bethesda, Maryland (http://www.uhms.org)
URI: http://archive.rubicon-foundation.org/7032
Date: 1992

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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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