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Article: Diving and Immersion Pulmonary Edema

Discussion in 'ScubaBoard Articles' started by Ayisha, Nov 21, 2012.

  1. Dr Simon Mitchell

    Dr Simon Mitchell ScubaBoard Supporter Staff Member ScubaBoard Supporter


    There is an excellent contemporary paper we published in DHM (2019) written by Peter Wilmshurst (who first reported immersion pulmonary oedema) available on pubmed central:

    Simon M
    Ayisha likes this.
  2. Angelo Farina

    Angelo Farina Marine Scientist

    # of Dives: 1,000 - 2,499
    Location: Parma, ITALY
    In September I had major abdominal surgery, which required intubation for several hours. At extubation I suffered of the problem: I could not inhale more than 0.6 liters due to oedema.
    The therapy was a pulmonary exercise employing a 1/2" silicon hose inserted in a plastic bottle with 15 cm of physiological solution. I had to inhale freely and slowly, and exhale through the pipe, making the air to bubble inside the liquid. This creates a respiratory cycle with a significant average positive pressure, which helped to "push away" blood from my lungs. Repeating this exercise a number of times, in less than 24h the oedema was eliminated. After each exercise session (6 to 10 exhalation) I perceived the immediate increase of the volume of air which I was able to inhale.
    After this first-hand experience, I now think that our regulators should be tuned for minimal inhalation effort, and some larger exhalation effort, so the average pressure during the respiratory cycle remains significantly positive.
    I do not think it is a good idea to employ regulators with minimal exhale effort, as keeping a positive pressure in your lungs is healthy.
  3. clownfishsydney

    clownfishsydney Loggerhead Turtle

    # of Dives: 2,500 - 4,999
    Location: Sydney Australia
    Another paper is Scuba divers' pulmonary oedema: recurrences and fatalities by Dr Carl Edmonds, John Lippmann, Dr Sarah Lockley and Dr Darren Wolfers in Diving and Hyperbaric Medicine Volume 42 No 1 March 2012. Copy available at my web site via this page, see towards the bottom: Michael McFadyen's Scuba Diving Web Site.

    Also on that page is a detailed description of a dive (that I was also on) that led to the death of a close friend from IPE. I think this is also worth reading. I am now certain that some other people who died in diving accidents in Sydney in 1990s and 2000s were probably IPE, not drowning as reported.

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