Bad Sunday night: pain after diving

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Puzzlement

Registered
Messages
27
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Location
Sydney
# of dives
50 - 99
I'm posting in the Basic forum, because there wasn't an accident or near-miss, and nor do I really have a question about dive medicine and physiology suitable for the Marine Science area. I just thought I'd share a short story of pain after diving for divers curious about what happens if you have a suspected bend. Feel free to move the thread if it makes sense.

I dived two dives in Sydney yesterday, the first 46 minutes at a maximum depth of 20 metres and the second 48 minutes at a maximum depth of 17 metres, with an hour on the surface between them. I came within 5 minutes of no-deco time (according to a Suunto computer on the rental equipment, my Oceanic Veo had about 40 minutes but is a shockingly generous computer) on the second dive but never went into deco. No problems with fast ascents and I did safety stops. Finally, I thought, that problem other people talk about where dive time is limited by decompression limits rather than air consumption!

I was out of the water at 5pm and felt perfectly well. About six hours later my shoulders started hurting in a way that felt very much like muscular tension. But it got worse and worse, well past the point where I could rest or sleep. I took paracetemol and much of it went away except for very intense pain in my right shoulder joint. Ibuprofen didn't have much of an effect on it either. It was only at this point that my husband and I considered the bends.

We called DAN (the Australian version). It was 1am and it took them a little while to get the doctor on-call to answer the page. Once we spoke to him he sounded unconcerned about the profile but thought that I would probably need to attend the hyperbaric facility in Sydney. Five minutes later the Sydney specialist on call rang. He said (as we all probably know) that joint pain needs to be assumed to be DCS, but recommended going to a nearer casualty ward first and having some oxygen and then I would transfer in the morning if the pain still seemed like a bend was the right diagnosis. Given the amount of time this took (about 20 minutes of phone calls and waiting), I think I'd call for an ambulance first in the event of neurological or pulmonary symptoms and ring DAN later, although of course I imagine they would have been faster if my symptoms were more severe.

By the time I got to casualty the pain was much improved, but I didn't know if that was the painkillers or a proper improvement. The doctors in casualty knew what DCI was but I don't think had often seen a suspected case. They were most concerned with ruling out an embolism. I wasn't put on oxygen in the end, but I was held until the morning for observation and X-Rays to find out if there was an obvious mechanical reason for what was initially a very unusual pain level for me. I was discharged this morning without a diagnosis from the X-Ray (shoulder joint is fine mechanically, no barotrauma to lungs) but with advice that DCS didn't seem very likely since the pain was nearly gone. The hyperbaric chamber rang my husband at home at about 9am to find out if I was coming in and we said no.

And that's my story. I was pleased all around with the seriousness with which the symptoms were taken, both by the two hyperbaric specialist and the casualty staff. I am glad I called DAN.
 
I'd still likely be concerned and perhaps want to visit a specialist. Your symptoms were so like DCS that I'd be reluctant to write them off absent evidence of another cause. If you follow up or discover anything new, please post again. It will be interesting to read about. Glad you're OK.
 
Glad you're feeling better, but I'd have insisted on being put on oxygen while the "regular" docs ran through their differential diagnosis.

Please monitor yourself very closely for any further possible DCS symptoms.
 
Glad you're feeling better, but I'd have insisted on being put on oxygen while the "regular" docs ran through their differential diagnosis.

It's difficult to work out how to insist. I told both the triage nurse and the doctor that the hyperbaric doctor had recommended it. There was no further comment from them.

I will watch for further symptoms. It's not really possible in Australia, as I understand it, to just pop in to see a hyperbaric specialist. If I am referred by a public hospital's emergency room the consultation and recompression will be free. If I am not so referred, all treatment will be out of pocket.
 
Hi,

Your dive profile is putting you into deco using tables (I have just checked with different versions, and the result was similar). You ended your first dive as J (and the dive was at limit), then finished your surface interval as H witn RNT 52 minutes. Adding this to your 48 minutes was putting you way into deco, considering that the maximum time for 18 meters is 60 minutes.

That's why I usually prefer to use tables over computer. In situations like this I feel that the computer is extending my bottom time by eating too much of the safety margin.

I am glad you are ok after this unpleasant experience, and I wish you never repeat it again.
 
Your dive profile is putting you into deco using tables.

Indeed. As you can probably guess, neither was a square profile and the times reported are descent to surface, not actual bottom time. I don't note ABT, but it would be 6 to 8 minutes less for each dive.
 
That was obvious. But the more conservative result of the tables might have prevented this situation. I think it is not a good idea to push the dive time near the limit or into deco using computers; they are fine as long as you are far away from the limits. If you intend a long dive, better use tables and plan the deco accordingly. The computer was pushed near its non-deco limit into the second (repetitive) dive, at only 5 minutes away.

Indeed. As you can probably guess, neither was a square profile.
 
I agree. That's why I use tables to plan my dives beforehand.

Thanks for sharing the story, Puzzlement.
 
I have two reactions to this story . . . One is, if the severe joint pain WASN'T decompression sickness, what WAS it? I've had fairly bad pain in my shoulders when I was a new diver and had to carry my gear on my back a longer distance than normal -- Was this the case for this diving day? Or did you have to haul tanks from the car to a boat? Bad pain doesn't just come out of nowhere.

Second is that your story is not the first one I've read where the ER doc has refused to put someone on O2 while evaluating them for DCS. I simply don't understand it. Oxygen is cheap and short periods of breathing elevated O2 levels are all but harmless. My nurses put people on oxygen at the drop of a hat -- Come in complaining you're short of breath, and you're on O2, no matter what your blood oxygen level is. I have never refused to put someone on oxygen who asked for it, although I have taken them OFF oxygen once I was sure it was unneeded, to prove to them that it was okay to go home. I'll have to think about whether there's any good way to get word out to the ER community that O2 is the FIRST treatment of choice for DCS.
 
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