anyone want the truth and science on inwater recompression? It's incredibly effective

[boulderjohn]

Ahhhh now i follow you, your saying because i didn't crack the surface, i was never in serious danger of a hit and i agree.

My thought process was that i ran short on air so had to come up from depth much faster than i would have without the ff, effectively putting me at risk and justifying the extra time in water.

Close. You didn't crack the surface is one point, but the fact that you never got DCS is the main point. What you did was take a logical (and well done) step to prevent DCS. IWR is an attempt to cure it once it has occurred. To give you a medical analogy, what you did was the equivalent of taking medication that will prevent malaria before entering a country where it is prevalent. You took precautions to prevent something from happening. IWR is more like what kind of treatment you would get after you got malaria.

 

[tech_diver]

Would I do....

-In-Water Decompression? Yep, no prob. Got the gear, gas and experience. It happens every day.

-Omitted Dec procedure In-Water? If I blew past my stops I would grab tanks and jump back in the water without doubt or hesitation.

-In-Water Recompression? If I had symptoms of DCS in a remote location (day and a half from a chamber) on a boat with lots of hyperoxic mix tanks and my dry suit, I would do it (even though it's not recommended.) It would be a difficult decision but it would have to be MY decision based on an appraisal of the situation. If I felt like I wasn't going to survive the evac to a real chamber, I would attempt an IWR regardless of what evidence says about its safety or effectiveness.

 

[John from the burg]

Close. You didn't crack the surface is one point, but the fact that you never got DCS is the main point. What you did was take a logical (and well done) step to prevent DCS. IWR is an attempt to cure it once it has occurred. To give you a medical analogy, what you did was the equivalent of taking medication that will prevent malaria before entering a country where it is prevalent. You took precautions to prevent something from happening. IWR is more like what kind of treatment you would get after you got malaria.

Thanks for clarifying brother, Im tracking.

I took preventative measures to beat the hit, not reactionary.

 

[Red Sea Shadow]

Read this please, because I see so many posts and people mention dive incidents/accidents/fatalities as if they are operating under a hogarthian framework of interpretation, regarding IWR.

There's a piece by Bret Gilliam (in the 16th issue of Tech Diving Mag) discussing some aspects of IWR.

 

[CaptLee]

I don't know nearly enough to comment on IWR and do not have the experience or equipment to attempt without probably killing myself but I am concerned with the idea of some people recognizing symptoms that are also symptoms for other medical issues. (There was a lot to read and forgive me if someone already mentioned this and I overlooked it) but if someone hits the surface with shoulder pain (mentioned several times) or with numbness in an arm(also mentioned) that they're having a heart attack or a stroke and instead of seeking medical treatment my they are about to jump back in with a new tank.

 

[rjack321]

I don't know nearly enough to comment on IWR and do not have the experience or equipment to attempt without probably killing myself but I am concerned with the idea of some people recognizing symptoms that are also symptoms for other medical issues. (There was a lot to read and forgive me if someone already mentioned this and I overlooked it) but if someone hits the surface with shoulder pain (mentioned several times) or with numbness in an arm(also mentioned) that they're having a heart attack or a stroke and instead of seeking medical treatment my they are about to jump back in with a new tank.

Imagine getting to your 30ft stop and having significant arm pain or unilateral facial numbness. Do you stay in the water on O2 longer than planned or get out because of your stroke? Especially considering the symptoms of an embolism and a stroke in this situation are virtually identical.

 

[lemke]

IWR is always a consideration for deeper water spearfishers. Depending on how deep or how big a fish you spear, your dive plan can change dramatically. LOL

 

[100days-a-year]

Have had partial paralysis clear up on guys who pushed the limits.Many times seen pain disappear on descent,generally a sign it was truly DCS.

We are rarely closer than 12 hours from the dock and trying to make a buck.We carry enough 02 to do IWR as it has worked many times on many people.Waiting to treat symptoms when you have gas available is sheer lunacy.

SOP is 60' on 02 for 10 to 20 minutes then 5 min at 50,40,30,20 and 10.2nd diver is either standing by or in the water with bent diver.

DO NOT TRY AT HOME OR WITHOUT TRAINING!

 

[dumpsterDiver]

20 minutes on 100% at 60 feet is SOP... Do you have another diver with them in case they tox out?

 

[lemke]

100% O2 at 60'? Are you insane?