Quote:
Originally Posted by Mark Chase
Mitchell SJ, Doolette DJ, Wachholz CJ, Vann RD (eds.). 2005. Management of Mild or Marginal Decompression Illness in Remote Locations Workshop Proceedings. Durham NC: Divers Alert Network. 240 pages. RRR ID: 5523 |
First of all I'll study this article sounds interesting from DAN.
On missed deco procedures - here we are talking symptom free and getting down PDQ these are all taken from the USN tables. We used to have them in BSAC prior to 1979 and now lo and behold we have fledging tec agency DSAT quoting the exact same procedures as Im sure many other agencies after all this has been a proven method that "seemed" to work.
I practised this after a bouyant ascent from 30m on a 60m deco dive, my buddy panicked after running out of air and refused to buddy breathe, Ok this was back in 1984. Diving single 15's looking for lobsters! Anyway back to the 12m stop with new tanks and 1.5 times the deco. We both remained symptom free after the dive.
I recently applied the procedure again on an accelerated deco dive to 55m when a team member made a inverted drysuit buoyant ascent! From 50m after staging tanks to swim through a restriction! (Not cave just an arch in open water) any standard missed stopped procedure was applied with no bad results. Recently one of my tec students rescued a convulsing diver in Dahab, got him to the surface and help, then he applied the re entry deco procedure again without a problem.
If symptoms are appearing then the sensible approiach would be to breath O2 and get to the nearest chamber.
I had one case were we were completing work on a damn in a remote area with multiple short deep dives to 45-50m at altitude and 4 degrees C at depth! The surface temperature (shallower than 14m) was 28 degrees C!! One of the divers experience a classic shoulder bend so we put him back down to 6m on EANx 40 (which was the only deco gas we had albeit in pletiful supply then.) After 30m he was revieved of all symptoms so we then kept in the water for a further 60 minutes breathing 40% at 6m luckily the water was warm at this depth..
The outcome was successful. So I will read the article with interest.
Thanks