One day at a Time

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Spectre

Contributor
Messages
5,808
Reaction score
7
Location
Wicked farther south of familiar
# of dives
500 - 999
Posted on behalf of a friend of mine:
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One Day @ a Time

Hello everyone, I have a dive experience I’d like to share with fellow divers, the result of which has changed diving for me. As many of you know I purchased my very first rebreather, the Inspiration, this year. I was fortunate enough to have both the time and $ to get out and get my certification in April. Along with several other divers, I took off to Hal Watts Forty Fathom Grotto and did 3 days, 8+ hours underwater, learning, training, and practicing rebreather skills.

As many of you know, I was the Production Manager @ Cis-Lunar, a fully Closed Circuit Rebreather (CCR), made for the Wakulla II Project a few years ago. (http://www.usdct.org/index.htm, see link if you’re interested). At Cis-Lunar I learned that rebreathers were going to be the future for all of us underwater. As a result, I kept a watchful eye on several of the rebreather manufacturers.

After returning from Florida, I took a weekend off and proceeded to wait several weeks for the New England weather to cooperate. I also had trouble with the unit fitting me. I installed a new hole on my custom McGrath harness and was able to solve the problem. Yes its fits now J.

Finally, another rebreather diver Steve, and I, did our first New England rebreather dive together with Cape Ann Divers, on the Poling. The dive was a learning experience as we were in the COLD northeast again, 38 degrees, 70ft., and my right DRY glove wasn’t on properly. As a result, within 20 minutes, my hand was freezing; time to go up! All in all, we both had an OK dive, but could see we had a way to go with respect to practicing with our new equipment.

The following Saturday, I booked both a morning and afternoon dive with Cape Ann Divers. We headed out to Kettle Island. Upon entering the water, I realized I was probably a bit lightly weighted but felt ok to continue the dive. As instructed, I did a procedure referred to as the ‘ duck & tuck’, (head first, feet up dive, to descend, according to the Rebreather Manual). After reaching the bottom of the anchor and hooking up a reel, I headed to a little deeper water. I ended up hooking up a second reel and was able to reach a maximum of 70ft. Poor visibility, cold water, and just being bored, I turned around and headed back. During my swim back I was having trouble with my buoyancy. Upon reaching 30ft. much sooner that I would have liked, I decided to dump all the gas I could from my reabreather, in hopes to remain in the water to continue back to the anchor to retrieve my reel. Despite my efforts to remain in the water, I found myself on the surface. I vented all buoyancy, and re-descended following the ‘duck and tuck’ procedure. I retrieved my reel and proceeded to come up the anchor line without incident.






Once back in the boat, I noticed that my left ear was blocked. My first though was that I had water in the ear. However, that theory felt a bit strange, since I dive with a dry hood. But not a problem, it should go away, so I thought.

We headed up to Braces Cove for a second dive. I sat out the dive, as I wanted the surface time for the next dive on the Poling. After unloading and reloading new passengers, we headed back out to the Poling for the afternoon dive. As a result of my ear being blocked, I decided to forego the ‘duck and tuck’ procedure. Rather, I would add a dive light for additional weight compensation, to assist in my standard decent procedure. The dive was nice and easy, with one funny thing that happened. As I swam alongside the wreck, my light fell out of the harness where it had been clipped to my body. I picked it up, swam on top of the deck of the Poling, and reattached the light to my harness. I managed a couple of laps around the outside of the wreck and had finally enjoyed a dive with out any real issues.

Come morning time, my ear still was blocked. I decided to call a doctor to have it looked at, thinking perhaps there was a chance it could be infected. Upon examination as well a hearing test, the doctor’s diagnosis was that I’d damaged my middle ear, permanently!
The doctor and I discussed diving and equalization. He asked me several questions about pain, vertigo, and if there had been any signs of blood. I explained I had no problems whatsoever. The doctor seemed quite puzzled that I’d not had any signs of vertigo. He noted that the outer ear was completely in tact, which also seemed puzzling to him. So how/why did the inner ear get damaged? Currently, the doctor just isn’t sure. He scheduled me for an MRI for additional evaluation. He also prescribed several Steroid injections to help reduce swelling and possibly bring the tubal connection back. He indicated there is a very remote possibility that time could heal the inner ear.

I’m hoping to get everyone I know, to stop and think a minute next time you make a decent. I had never heard of anyone loosing their hearing from diving and had I, I would have read more on the subject. I’ve also been reading everything I can from DAN and others who all say to descend feet first as much as possible. This allows gas to come up to the ears naturally. I have my ideas as to what happened, but they are only ‘ my’ ideas. I wanted to give my fellow divers something to consider when descending and equalizing while diving.

Upon the advise of my doctor, I am taking time off from diving in hopes that my ear will recover. I’ll be at the meetings when I can. Please pass this on to anyone who may benefit from it.
-Paul
 
I’m a bit confused about a couple of things here.

Paul first states that he sustained a middle ear barotrauma, and then later says it was an inner ear injury. These are two separate, albeit adjacent & associated, anatomical areas and often manifest at least some different signs & symptoms when injured.

Also confusing is the remark, “He [doctor] noted that the outer ear was completely in tact, which also seemed puzzling to him. So how/why did the inner ear get damaged?"

Neither outer nor middle ear damage is required for inner ear involvement. The oval/round windows of the inner ear are quite delicate membranes, more delicate even than the ear drum, and pressure changes within the ear can and are known to harm them in the absence of involvement of any outside structures.

Unless I'm missing something here, Paul may wish to clarify matters with his physician, and then with us.

Thanks,

DocVikingo
 
I concur too.

Oval window ruptures can heal spontaneously within a week. Currently, a definitive diagnosis is made surgically, but often presumptive diagnoses are made on a normal external ear exam but with signs or symptoms of vertigo, tinnitus or hearing loss. If these symptoms resolve on their own, many ENT docs would let the self healing proceed. Surgery is not the only treatment. Its not necessarily an end to diving.

In view of the potential seriousness of the injury to your diving passion, it may be helpful to call DAN to locate an ENT diving specialist near you. A second opinion is helpful in view of the controversy in treatment and outcome.

Steroid injection use is puzzling.
 
Several years ago there was a discussion of round window injuries on the freedivelist. It was noted that several divers have sustained this injury and lost hearing in one ear. Freedivers descend very rapidly and the risk of ear/sinus barotrauma is higher than for scuba divers. Each one was told by his doctor that this injury was very rare, really just a fluke, but they should discontinue diving. Being deaf in one ear is an inconvenience becoming deaf in two ears is a disaster.

As more divers admitted to suffering round window injuries it became clear this was not a rare conditions for freedivers at all. I guesstimated that perhaps as many as 10% of the long-term divers had suffered this injury. Clearly its important to be certain that your ears have equalized before descending or ascending.

Ralph
 
Most Inspiration Module Ones last at least five (5) days. It sounds like a classic chain-mail letter to me. I really hate these 'posted on behalf of a friend of mine' threads. My friends stand out and allow themselves to be counted. But hey, I've been wrong before. :rolleyes:
(head first, feet up dive, to descend, according to the Rebreather Manual).
Right. Not any manual I've ever seen. I don't mean the procedure, rather the wording. I've done a few rebreathers. Incidentally, the courses are all unit-specific. BTW.

Anyway, I'm puzzled. What's the whole point of the post? I have a lot of respect for the USDCT and there was a Paul there. I don't believe it's the same person, for a lot of reasons. Perhaps Spectre might care to elaborate ... :hiding: :devilish:
 
fins wake once bubbled...
Anyway, I'm puzzled. What's the whole point of the post? I have a lot of respect for the USDCT and there was a Paul there. I don't believe it's the same person, for a lot of reasons. Perhaps Spectre might care to elaborate ...

Paul is in my dive club. He wrote up his article and sent it to our dive club newsletter. He also sent it to the people he knows. I asked if he minded I post it, and he said not at all. He is not a member of the board. I sent him a link to the post so he could follow up some of the questions if he had time.

No, it is not a chain letter. Yes, it is the same Paul. Yes it did happen. And yes, he may never dive again.

Have some respect.
 
In that case I apologize, and of course I hope Paul's problems resolve and that he may take up diving again.
 

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