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Species differences in decompression.

T E Berghage, T D David, C V Dyson

    Undersea Biomedical Research
    |March 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    This study reviews laboratory animal decompression data, developing mathematical models for saturation time and no-decompression limits in seven species. These models offer a preliminary method for extrapolating decompression findings across different mammals.

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    Area of Science:

    • Physiology
    • Comparative Biology
    • Biomedical Research

    Background:

    • Decompression studies in laboratory animals are diverse and fragmented.
    • Systematic data are available for only a limited number of species.
    • A need exists to synthesize and evaluate existing decompression research.

    Purpose of the Study:

    • To consolidate and statistically evaluate diverse laboratory animal decompression studies.
    • To develop mathematical functions for key decompression variables.
    • To enable extrapolation of decompression findings across mammalian species.

    Main Methods:

    • Literature review and statistical evaluation of 22 species.
    • Development of mathematical functions using physiological data from seven species (man, goat, dog, guinea-pig, rat, hamster, mouse).

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  • Analysis of data from humans, rats, and mice for additional decompression variables.

    • Main Results:

    • Mathematical functions were developed to estimate saturation time and no-decompression saturation-exposure limits.
    • Physiological relationships were established for pressure-reduction limits and time to decompression symptoms.
    • Data on gas elimination and decompression stop times in rats were discussed.

    Conclusions:

    • General functional relationships provide a preliminary means for interspecies extrapolation of decompression results.
    • The study highlights the need for further animal laboratory research in mammalian decompression.
    • This work aims to standardize and advance the understanding of decompression physiology.