Simon Mitchell - Should divers treat DCS in-water?

It has always been controversial whether divers in remote locations should consider treating decompression sickness with in-water recompression. This presentation will discuss evidence for the efficacy of recompression instituted very quickly after symptom onset and at lower pressures than used in chambers, and for risk mitigations like full face masks.
Diving Talks - Portugal 2022 - Panel 10

[@wasanweerachumpol2134]

Useful explanation,Thanks Simom.

[@kp7285]

Thanks for this video, it's put a 21 year question to bed. Long story short I was part of a team lifting a sunken boat off the bottom at Lake Okareka in Rotorua. It was in about 15m approx 250m from shore. My role was to fill the lift bags. I had a tank on my back and 2 tanks with regs attached to my BCD via a bungee. The bags were full but it wasn't ascending very quickly. It was about 2 or 3m of the bottom when I decided to give a squirt of air. In that moment it took off and I got caught in a line and rapidly ascended to 5m. I could feel my fingers going numb/tingles in forearm and knew that my best option given gas laws was to descend. Once back on the lake floor and able to sort myself I was able to tell my fellow divers my plan using a tablet. It took nearly 3 hours for me to make my way up the terrain on the lake floor and once I reached waste deep water i could see ambulance officers on shore waiting with oxygen. Because of my computer it was decided that I wouldn't go to Devonport to the Deco chamber as it was satisfied I'd managed the accent correctly. Stayed in hospital overnight and went home the next day.

[@andysPARK]

Thanks for sharing. May I ask, how long were you at the bottom before ascent? And did you have any prior obligation? Envioment temps, visibility, dry suit/wet suit and how much air at end? Buddy stayed with you? During recompression, any issues for us to consider and preplan against? Just to improve my understanding.
I think you made a good choice playing it safe like that BTW.

[@jeroenelout]

I've been waiting for this video for 6 year.
When training groups of divers at remote locations in Africa, IWR is a topic that get talked about regularly

[@swoopmj]

I did an in-water decompression many years ago after the onset of mild symptoms including tingling in my hands. This was off Gannet Rock in the Hauraki Gulf I followed the protocol in the US Tables from memory and exited the water free of symptoms. I have no doubt I would have gotten worse if I had not done so.

[@stevewarren6608]

Thank you very much indeed. Saw IWR work on a recreational dive nearly 40 years ago and had questioned why it was not endorsed ever since.

[@rogermatthews182]

Excellent discussion, thank you Simon

[@divingtalks2566]

Glad you enjoyed it

[@volkanturkay6623]

If you share mentioned articles it will be superb

[@andysPARK]

Thanks. Useful.

[@PKNEXUS]

Thank you.

[@Mrveescuba]

thanks for the upload

[@divingtalks2566]

Our motto is “Let’s talk about diving” and share the Talks. 😊

[@tolga1cool]

Just stumbled on this video! Finally I can get a scientifically founded answer to this question that ive had since the beginning of my diving

[@divingtalks2566]

One of the objectives of Diving Talks!

[@tolga1cool]

@@divingtalks2566 since discovering this channel I've been watching a lot of your videos and have to say I'm really impressed. Thanks for putting out so much valuable information! Highly appreciated