In Water Recompression for DCI

[Rickg]

Here are several links that discuss IWR using both air and oxygen. There is a ton of data to sift through here.

I find IWR to be an interesting subject and thought you might find some of these links worth perusing. The first URL in particular has links to wealth of knowledge on this subject.

http://www.cisatlantic.com/trimix/A...inwater/IWR.htm

http://www.cisatlantic.com/trimix/A...IWRcasestud.htm

http://www.fullcave.com/REMOTEDIVING.htm

http://www.pathcom.com/~bracuk/RecS...ompression.html

And here is what I found to be the best of the bunch. A true story written by someone who has experienced IWR. He wasn't able to complete the full oxygen IWR treatment course but you walk away with the idea that he feels even his partial IWR probably prevented him from having a worse case of DCS.

http://staff.washington.edu/parker/.../bendstory2.htm

I've never had a DCS hit and hope I never do but some of this might come in handy if I ever should have a hit while in a remote location. For example, we will be going on a liveaboard out of Manado, Indonesia next month for a 6-day/5-night trip up to the Sangihe Islands which are pretty remote (probably in excess of 12 hours from a recompression chamber for a vast majority of the trip).

Hope this gives you something to think about. Best of all dive conservatively and you'll probably never need to consider this.

Rickg

 

[BigJetDriver]

Folks,

This subject comes back around a lot, not that this is a bad thing!

I will say this yet again:

IN WATER RECOMPRESSION---DON'T DO IT!!---UNLESS:

(1) You have a REAL need. You must be a long way from professional help. You must have a serious case of, or impending case of, DCI.

(2) You must be truly PREPARED. This does NOT mean grabbing a cylinder and jumping back in. It means having the equipment prepared and in position, and someone who knows the drill.

(3) Conditions must support the choice. Weather, water, time, gas supply, etc. MUST be such that the risk/benefit anlysis is tilted toward IWR. The primary rule is always: "First do no harm!"

Rob :doctor:

 

[jbd]

Folks,

This subject comes back around a lot, not that this is a bad thing!

I will say this yet again:

IN WATER RECOMPRESSION---DON'T DO IT!!---UNLESS:

(1) You have a REAL need. You must be a long way from professional help. You must have a serious case of, or impending case of, DCI.

Which apparently was the case as noted in the original post.

(2) You must be truly PREPARED. This does NOT mean grabbing a cylinder and jumping back in. It means having the equipment prepared and in position, and someone who knows the drill.

Which requires prior attainment of knowledge and practice.

(3) Conditions must support the choice. Weather, water, time, gas supply, etc. MUST be such that the risk/benefit anlysis is tilted toward IWR.

Rob :doctor:

Which reflects back to #2 in that one must have sufficient prior knowledge and practice to make an informed decision.


Will the standard recreational reef explorer kind of diver ever really need this information? Very unlikely. For them, its probably best to spend the effort, that might be expended on learning IWR, learning real diving skills and dive management.

However there are people who do dive in remote areas, with the dives being technical in nature i.e. depth, duration or a combination of depth and duration. The best hope for these folks, barring pocession of an onsite chamber, may well be a thorough understanding of IWR protocols and procedures.

 

[Mako Mark]

I read an account of Richard Pyles "midway" hit where he considered doing IWR, but then bailed out at the last minute when the paralysis started to set in.

I wish I could find the link, it was a great account of a serious hit in a remote location..

 

[jbd]

I read an account of Richard Pyles "midway" hit where he considered doing IWR, but then bailed out at the last minute when the paralysis started to set in.

I wish I could find the link, it was a great account of a serious hit in a remote location..

I read that also. Indeed a great account. If I'm not mistaken I think he had used IWR on other occassions :06: Its been a long time since I read his articles.

 

[pipedope]

http://staff.washington.edu/parker/scuba/tech/bendstory2.htm

and

http://www.bishopmuseum.org/research/treks/palautz97/cmd.html

In reverse order, naturally.

And his IWR article;
http://www.bishopmuseum.org/research/treks/palautz97/iwr.html