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CISDOC database

Document ID (ISN)66679
CIS number 96-1015
ISSN - Serial title 0095-6562 - Aviation, Space, and Environmental Medicine
Year 1996
Convention or series no.
Author(s) Conkin J., Kumar V., Powell M.R., Foster P.P., Waligora J.M.
Title A probabilistic model of hypobaric decompression sickness based on 66 chamber tests
Bibliographic information Feb. 1996, Vol.67, No.2, p.176-183. 20 ref.
Abstract An approach to estimating the probability of decompression sickness (DCS) in astronauts performing extravehicular activities (EVAs) is described. Data from 66 hypobaric chamber tests (211 cases of DCS in 1075 exposures) were analyzed. Variables considered were denitrogenation prior to decompression, magnitude of the decompression, exercise after decompression, and length of the EVA. Probability models were fitted using techniques from survival analysis. Constant probability of DCS was better described by tissue ratios that decrease as ambient pressure after decompression decreases, a conclusion supported by other studies.
Descriptors (primary) negative pressure; space travel; decompression sickness
Descriptors (secondary) probability analysis
Document type D - Periodical articles
Country / State or ProvinceUSA
Subject(s) Transport and communications
Broad subject area(s) Physical hazards
Browse category(ies) Hyperbaric pressure
Space travel
Hypobaric pressure