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From: <kirvine@sa*.ne*>
Date: Tue, 04 Jan 2000 13:52:04 -0500
To: Steve Schultz <se2schul@un*.ma*.uw*.ca*>
CC: Aquanaut Mail <techdiver@aquanaut.com>
Subject: Re: Asthma and high p.p.o2
JJ is a perfect phsyical specimen - he has nothing. Timmy Maimone has
asthma , and ther have been others with asthma. Maimone was one of the
many WKPP guys who did the Ironman in Panama City in November. 

I know all about asthma mishaps due to being on hand when they happened
to divers who are no longer diving with the WKPP , as of the dive that
revealed the problems, so that is none of anyone's business.

JJ has done all the dives that I have done, and if he had anything but
perfect everything, he would not have survivced any of it. Also, you are
talking about a guy who played outside linebacker at Unversity of
Florida - try that with asthma. 

Steve Schultz wrote:
> 
> George,
> 
> I think I remember hearing that one of the WKPP guys, possibly JJ has
> asthma.  Is this true?  If so, how does he deal with it?
> 
> steve
> 
> On Thu, 30 Dec 1999 kirvine@sa*.ne* wrote:
> 
> > Been there , seen it, had to deal with it. I am corret to the T. Believe
> > it or not.
> >
> >
> >
> > Michael J. Black wrote:
> > >
> > > Einar,
> > >
> > > I bounced your question off Ernest Campbell M.D. at Diving Medicine
> > > Online.  Question:  "A dive instructor with asthma asks about the risk
> > > of 100% O2 for deco at 20-ft stop.  Also wonders about allowable
> > > UPTD's (units of pulmonary toxic dose) given his stable asthma."
> > >
> > > Dr. Campbell's answer:  "I'm not aware of any studies relating asthma
> > > and O2 pulmonary toxicity.  A reduction in vital capacity would be the
> > > main thing your dive instructor would notice over a period of repet
> > > dives with 100% O2 deco at 20 feet.  The other factor might be
> > > bronchospasm from the O2, noticed immediately.  Lambertsen's UPTD's
> > > are calculated by formula using time, pressure and a constant of
> > > 0.5 as a threshold in bars, and asthma would have nothing to do with
> > > changing or increasing the risk further.  His daily exposure limits
> > > would not be any different with or without asthma."
> > >
> > > Hope that helps a little.  Asthma is a relative contraindication to
> > > diving and you know undoubtedly that you are walking a fine line.
> > > It has been the subject of a great deal of debate over the years, and
> > > was once considered an absolute contraindication to diving.  Because
> > > there are several different types of asthma and because it can be well
> > > controlled with meds, the standards have been relaxed somewhat in
> > > recent years.  Take it easy and good luck.
> > >
> > > MJB
> > >
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