I am currently in nursing school, but worked as a commercial diver for 5 years in the GOM. I am not aware of any long-term effects of multiple decompressions in the hyperbaric chamber.
Basically decompressing to (X)ft in the chamber is the equivalency of diving to the same (X)ft in salt water. ATA remains the same.
As long as you are following NAVY tables accurately in both scenarios, there are usually no complications to the diver/tender.
There are Divers in their 60's w/out notable complications of repetative commercial dives/chamber runs using Surface supplied air and/or Mixed gas thru-out their 20-40yr career.(could be wrong)
I have never ran across any statitics on this, but I think I will check into it.
Constant fluctuations in the ATA and O2/He02 sats. would obviously mean constant fluctuations in the body.
I might would be more concerned about the long-term effects of constant O2 @depth or any other breathing media you might be using, like HeO2.
But I have no answer to your question.
If your in the Dive Industry, you probaly have visited
offshorediver.com
You might propose the question to John Roat, an old-schooler.
Dive Safe,
lelu
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