These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Probable lung injury by long-term exposure to oxygen close to 50 kilopascals.
    Author: Suzuki S.
    Journal: Undersea Hyperb Med; 1994 Sep; 21(3):235-43. PubMed ID: 7950797.
    Abstract:
    To investigate the possibility of lung injury after long-term saturation dives where oxygen partial pressure was kept between 42 and 50 kPa, we measured lung volumes, diffusing capacity (DLCO/VA), and ethane production in the alveolar expirate on six divers who participated in a 1.1-MPa saturation dive (9 days of total dive time) and on another six divers in a 4.5-MPa saturation dive (29 days of total dive time). Vital capacity after surfacing did not significantly decrease in divers after either dive profile, in comparison with predive values. DLCO/VA was significantly decreased only in the 4.5-MPa saturation divers after surfacing. Ethane production, used as an index of in vivo lipid peroxidation, was significantly increased immediately after the 4.5-MPa saturation dive. The decompression procedure seemed to have little effect on the decrease in diffusing capacity and increase in ethane production. These observations indicated that the decrease of DLCO/VA was assumed to be caused by oxygen-derived free radicals.
    [Abstract] [Full Text] [Related] [New Search]