Statistically Based Decompression Tables IX: Probabilistic Models of the Role of Oxygen in Human Decompression Sickness.

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Statistically Based Decompression Tables IX: Probabilistic Models of the Role of Oxygen in Human Decompression Sickness.

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dc.contributor NAVAL MEDICAL RESEARCH INST BETHESDA MD en_US
dc.contributor.author Parker, EC en_US
dc.contributor.author Survanshi, SS en_US
dc.contributor.author Thalmann, ED en_US
dc.contributor.author Weathersby, PK en_US
dc.date.accessioned 2006-08-30T03:19:26Z
dc.date.available 2006-08-30T03:19:26Z
dc.date.issued 1996 en_US
dc.identifier.govdoc ADA308247 en_US
dc.identifier.govdoc NMRI-96-05 en_US
dc.identifier.govdoc XB-NMRDC en_US
dc.identifier.other PE63713N en_US
dc.identifier.other WUDN177792. en_US
dc.identifier.uri http://archive.rubicon-foundation.org/3410
dc.description Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center (http://www.dtic.mil/) is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested. en_US
dc.description.abstract While probabilistic models of human decompression sickness (DCS) have been successful in describing both the level and timing of DCS risk in a wide variety of N2-O2 data, they have failed to account for the observed DCS risk in the currently available collection of dives with significant periods of 100 percent oxygen breathing. The best model to date, calibrated with over 2300 air and N2-O2 dives, under-predicts the DCS risk of these O2 dives by 60 percent, whether O2 is breathed during in-water decompression or during surface decompression procedures. This overestimation of the benefit of 0 is due to an exaggerated acceleration of N2 wash-out during 02 breathing. Seven-hundred and twenty-nine 02 decompression and surface decompression dives were added to the calibration data set. Fitting the existing base model to the new combined data set resulted in some improvement in OCS prediction n 02 data, but DCS predictions remained about 30 percent below the observed level. Three classes of 02-specific modifications to the base model were proposed: (1) modification of inert gas kinetics as a function of 02 pressure, (2) direct contribution of DCS risk as a function of either O pressure or fraction. en_US
dc.format.extent 114022583 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.rights Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center (http://www.dtic.mil/) is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested. en_US
dc.subject OXYGEN en_US
dc.subject DIVING en_US
dc.subject DECOMPRESSION SICKNESS en_US
dc.subject BREATHING APPARATUS en_US
dc.subject DATA BASES en_US
dc.subject RISK en_US
dc.subject PREDICTIONS en_US
dc.subject MODELS en_US
dc.subject HUMANS en_US
dc.subject PROBABILITY en_US
dc.subject GASES en_US
dc.subject SHORT RANGE(TIME) en_US
dc.subject SURFACES en_US
dc.subject MILITARY MEDICINE en_US
dc.subject KINETICS en_US
dc.subject INERT MATERIALS en_US
dc.subject MEDICAL RESEARCH en_US
dc.subject INTERVALS en_US
dc.title Statistically Based Decompression Tables IX: Probabilistic Models of the Role of Oxygen in Human Decompression Sickness. en_US

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