First Official DCS Incident on the Spiegel Grove

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Messages
2,047
Reaction score
11
Location
Minneapolis, MN
# of dives
200 - 499
Date: Sun, 18 Aug 2002 02:34:03 -0000
From: "sharkbaitwoman2002" <aagaskell@a...>
Subject: DCS Report by Adrienne

I wasn't going to bore everyone with all the gory
details of my unfortunate adventure, but since several people have asked I'll give the report. The medical staff at Mariner's Hospital told us that approximately 60 - 70% of the people they get with DCS do nothing wrong, which is pretty scary. I did the same dive as Eric and Carl, same nitrox mix, depth and dive time, the only difference was that my profile was probably more conservative. We had 4 computers between us and all of them said we were well within the safety margins. They were both fine, I got bent.

Jeff Bersch, Director of Hyperbaric Medicine, said that the rate of
incidence is greatly increased when diving at depths over 80 feet.
I've also done a follow up visit with my own physician who is a diver and familiar with hyperbaric medicine and he said the
cause of DCS is generally very puzzling. The worst part is I can't do any diving at all for 6 weeks and nothing deeper than 30 feet for another 6 weeks.

The good part is that the research data says that I
won't be any more prone towards DCS than anyone else after the waiting period. Matt was told he could dive after 6 weeks but the Doctor told me that it takes a full 12 weeks for the vascular system to repair itself.

As far as insurance I have Cigna with no additional dive insurance
and so far I've only paid my $25 emergency room co-pay. The hospital billing department said my insurance should cover
everything. If it turns out differently I'll post that information.

Unlike Matt, my symptoms started within a couple of minutes of
getting back on the boat after our first dive. I felt a slight pain
in my lower right back just above the waist. Over the next 30 or so minutes the pain continued to intensify and was becoming unbearable when my right leg went numb, from my toes to my hip. That made everybody spring into action and I was put on oxygen. As soon as I went on the oxygen the pain in my back disappeared, that was when I realized what was wrong. Until then I wasn't convinced it was DCS.

A Fish and Wildlife boat was at our boat within about
5 minutes. I was quickly on board along with Laurie (from the
Scuba-Do), Carl and Eric. Scott, our escort, gave us a 45 M.P.H. ride to the dock where the ambulance was waiting with 3 EMTs ready to jump on the boat. There was a minimal delay for vital signs and to be strapped to a board. I was then quickly carried to the ambulance.

An IV for hydration was administered in route to the hospital.
I was also on oxygen, which had been continuous since Laurie first administered it on the Scuba-Do. The hospital ride was less than 10 minutes. I think Carl might have been driving; he rode up front and was happy to report that it was his fastest time ever on that stretch of road. He especially enjoyed the siren getting all of the slow pokes out of the way.

By the time we were in the emergency room the numbness in my leg was gone. The medical staff indicated that sometimes oxygen made DCS difficult to diagnose since it masks all of the symptoms.

There isn't any test to detect DCS; they did many tests, EKG, chest x-rays, blood gas, and other lab work, however these were to rule out other medical problems and to be sure I would be able to go into the chamber. The results were all normal so they were
then able to determine what was wrong by my description of my
symptoms.

My first hyperbaric treatment was 6 hours in the chamber. The
treatment started at about 7 p.m. Saturday night. By then I was
pretty miserable, but I can only imagine how much worse it would have been in the old small cramped chamber. At least I was fortunate to have the benefit of the new chamber at Mariner's
Hospital, which is 24 ft. long and eight-foot round. It is necessary to have an RN in the chamber for the duration and I was very fortunate to have a wonderful nurse, Laurie, who keep track of my vitals, helped me with the oxygen mask and generally tried to make the experience more pleasant. The mask itself is torturous. It resembles something a fighter pilot wears, covering the entire face except the eyes and wraps around the head to hold it on. It is very heavy and fits extremely tight on the face. There are two large heavy black tubes attached at the mouth, inhale and exhale, that weigh the mask down so Laurie had to prop it up with a pillow to keep my head in a more comfortable position. The mask is on for 20 minutes and then off for 5 minutes throughout the 6 hour treatment. I was still on the IV, which was becoming painful and I had to stay in a horizontal position that I had been in since I was on the Fish and Wildlife rescue boat.

I was taken down to 60 feet for 4 hours and then we went to 30 feet for 2 hours. Once I got to 30 feet I could finally sit up and, more importantly, eat. After seeing Matt's photos I'm very happy to report that Carl forgot his digital camera and we don't have any photos to post of me in a hospital gown.

I had a pretty horrible, painful night in a hotel a few blocks from
the hospital. I was given the choice of being admitted to the
hospital or staying close by in case of needing medical assistance
during the night. I went back in the chamber Sunday morning for 2 hours. This was much easier than the night before because I was able to sit in a recliner and didn't have to have the IV.
I was still having some pain Monday morning so I went in for another 2-hour stint. This is not something I ever want to do again but I want to say that everybody, Laurie and Tony on the Scuba-Do, Scott the Fish and Wildlife boat captain, the 3 EMTs, the emergency room and other hospital personnel, Al, the hyperbaric chamber operator, the 3 hyperbaric nurses who keep me company in the chamber, Dr. Peter Mehta the hyperbaric doctor and last but not least Jeff, the Director of the Hyperbaric Medicine Department, all treated me like I was the only patient they had to care for. I'm definitely having all my dive accidents in Key Largo.

Oh, and by the way, I was officially the first person bent on the
Spiegel Grove. I'm having a T-Shirt made to commemorate the event.
 
From: "Marv Gozum @ CI Server" <marvin.gozum@v...>
Date: Mon Aug 19, 2002 12:47 pm
Subject: Re: [divingaccidents] 1st DCS account on Spiegel Grove Sun, 18 Aug 2002


A realistic account but a few things are a bit dated in the information delivered about DCI, and other items are missing and unfortunately I hear it SO often it pushes my buttons!:

First, this woman developed neuro DCS symptoms that worsened quickly after the dive. She should be checked for a PFO, more that just mentioning not to dive with 3-6 weeks. If a substantial PFO is found, diving per se, may be problematic, as she describes a 'safe' dive.

Second, this is a case study that shows the value of dive logging computers to post-mortem the DCI episode ... what were her ascent rates through all phases of the dive? What exactly was her bottom time for depth? Only more costly computers today are tracking, and only a few in their dive algorithms penalizing rapid ascent rates, such as Suuntos RGBM driven models and newer generation Uwatecs. If you have a computer that doesn't
log your depth-time, I highly advise you get one, even if you never download your profiles. NB: The profiles make superb replacement for the logged depth/time in your dive logs because they actually depict the entire profile for the dive. A cheap logging computer that does this job is the Sensus Pro, for $110, as of this
writing. http://reefnet.on.ca/sensus_pro.html I've used one since the prototype, in June 2001. Otherwise, I would consider only the latest Uwatec and Suuntos as safe computers based on new knowledge of DCI. I personally have checked the algorithm of the Suunto Vyper as utilizing a modern understanding on DCI, that has been tested to some extent on technical dives. Note, the most current theory, a mid deep-stop, is advisable but is
not implemented by any computer as of this writing.

Third, without the logging computer, its hard to say that 'nothing wrong' was actually done. However, the victim is correct to say that in most cases, one cannot figure out why the DCI occurred because no objective data is presented other than the memories of the diver and buddies.

Fourth, once bent on a recreational profile, the risk for being bent is greater than one who has never been bent, compared to the general diving population. That is, the risk of 0.01% DCI per dives is no longer the victim's risk, its higher. The risk after the waiting period however, returns to _victims_ baseline, not to that of a healthy diver. That's because the trigger to victims DCI episode is unknown, yet other divers do the dives without problem. For example, if a PFO or some lesion exists in victims spine and first manifests in this dive but nothing is done to change it, when she dives again another DCI episode could reoccur, either on the same spot or, in the case of PFOs, anywhere in the CNS.

Fifth, OXYGEN DOES NOT MASK DCI, it treats it. The absence of discomfort is resolution of the injury, although it takes many many many minutes to desaturate tissue nitrogen at 1 ATM. REMEMBER: ALL DIAGNOSTIC TESTS ARE BASED ON PHYSICAL EXAM [ signs] AND PATIENT COMPLAINTS [ symptoms] there is
nothing else to verify the existence of DCI except several days post-event, when MRI or CT Scans can reveal the persistent residual damage of DCS 2. Besides depth in the chamber, oxygen is breathed under pressure, and what is breathing 02 at the surface but breathing 02 at 1 ATM?

Sixth, many inexperienced divers breath rapidly at depth ... either from exertion, heavy meals, out of shape etc.. High 02 needs is a risk factor for DCI, and exertion, on top of this, may increase the risk further. Also, being in shape, if this lowers your resting 02 consumption, will lower your DCI risk.

In the end, she was treated within norms. While I think she is most likely to have had a DCI episode the information that was provided _about_ DCI is not current. In the interest of not repeating a DCI episode in this diver, all attempts to find risk factors and eliminate it must be made to insure that when she gets in the water, another DCI episode is not left purely to
chance.
 
Interesting stuff. I would go nuts in a chamber for 7 hours! Then again, when I dated my ex, I was in a chamber for 5 years. :/
 
FLL Diver,

Glad you're okay despite the no-dive for the next few weeks and shallow <30 feet thereafter. Oh, thanks for all the info; as I was reading your report I was getting names, hospital, dive boat etc. as we do lots of dives from Key Largo and it would be nice to have all that info available.

As for your second posting, I am getting myself and my buddy (my younger brother) uwatec dive computers - it may be expensive but your equipment and your buddy's all you've got under water. Once again, thanks for sharing your "unfortunate" experience.

DanBo
 
FLL Diver once bubbled...

Sixth, many inexperienced divers breath rapidly at depth ... either from exertion, heavy meals, out of shape etc.. High 02 needs is a risk factor for DCI, and exertion, on top of this, may increase the risk further. Also, being in shape, if this lowers your resting 02 consumption, will lower your DCI risk.


Does a good dive computer, like a Suunto Cobra, recognize that a higher than average repiratory rate as in increased risk for DCS, thus penalizing you on your bottom time?

I'd also be interested in knowing if an MRI of the lumbar spine was ordered, or will be ordered.
 
DanBo once bubbled...
FLL Diver,

Glad you're okay despite the no-dive for the next few weeks and shallow <30 feet thereafter. Oh, thanks for all the info; as I was reading your report I was getting names, hospital, dive boat etc. as we do lots of dives from Key Largo and it would be nice to have all that info available.

As for your second posting, I am getting myself and my buddy (my younger brother) uwatec dive computers - it may be expensive but your equipment and your buddy's all you've got under water. Once again, thanks for sharing your "unfortunate" experience.

DanBo

This wasn't FLL Diver's experience. It was taken from another scuba website message board. But I'm friends with the woman that took the hit and she is doing fine.
 
Just to clarify for all, I wasn't the one who took the hit. I crossposted the account and the second follow post from another board for those interested.

I want to get a few more dives under my belt before I tackle the Spiegel Grove. It can be a bear when the currents pick up.

Marc
 
Thank God she is ok and will be able to dive again, it is a real shame when the situation is turns out to be long term
 
Thank god she is ok! It also goes to show how recognizing what is wrong and getting early treatment helps get you a positive result.
 
Glad to hear that she is OK. Its kind of a scary fact that even if you adhere to the dive tables, even conservatively, you can still get bent.

Please dive safe everyone! :snorkel:
 
https://www.shearwater.com/products/swift/

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