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- Message-ID: <SCUBA-L%93012713185172@BROWNVM.BROWN.EDU>
- Newsgroups: bit.listserv.scuba-l
- Date: Wed, 27 Jan 1993 13:16:00 EST
- Sender: Scuba diving discussion list <SCUBA-L@BROWNVM.BITNET>
- From: "Reef Fish (Large Nassau Grouper)" <RFLNG@CLEMSON.BITNET>
- Subject: RE: Heart Surgery and Scuba Diving
- Lines: 71
-
- > Doug Martin, M.D. (DOUG <"VA::DOUG"@FALCON.IUPUI.EDU>)
-
- gave a well-reasoned medical opinion to my inquiry concerning open-heart
- surgery and post-surgery scuba-diving. THANKS. From first/second/third
- hand info I have accumulated thus far from heart surgeons, cardiac
- physicians, dive-physicians, as well as several active scuba divers who
- had "heart attack" (myocardial infarction), cononary artery bypass, and
- aortic/pulmonary valve-replacement surgery, the overwhelming concensus
- appears to be what Doug (Dr. Martin) said:
-
- > I believe you will find there is no definitive data on this.
-
- Not a comforting thought, but not unlike the situation in many other
- ills and practices either, relative to scuba-diving. B-(
-
- Doug then went on to explain why the large difference between the actual
- surgeon's recommended recovery period (before resuming diving: 12 weeks)
- to a particular individual, and DAN physician's recommenedation (1 year)
- to the same individual is not as large as it may seem:
-
- > :...: Despite your detailed description of your
- > friend's medical condition, there are many parameters that you have no
- > knowledge of that may affect this decision. His cardiovascular surgeon
- > is clearly in the best position to evaluate his cardiac risk, though he
- > may have limited knowledge of diving physiology. DAN on the other hand
- > has amassed considerable knowledge of diving physiology, but cannot
- > possibly know all of the intricate details of your friend's condition.
- > In addition, despite all of the neat studies on diving physiology in
- > healthy subjects, there is very little data on patients with chronic
- > medical conditions. Until this gap in our medical knowledge is filled,
- > no one can make recommendations with complete confidence.
-
- Well put. I take it that such divers will have to make their own subjective
- evaluations in risk assessment of their own actions, in the light of meager,
- available knowledge/advice ... sort of like deciding how to set your PERSONAL
- margins of safety when diving with computers (or Tables, for that matter).
-
- > Scott (S Dunbar <dunbar@BOULDER.COLORADO.EDU>)
-
- who is not an M.D., offered sound points/advice nevertheless, e.g.,
-
- > if your friend has drastically changed his lifestyle, that would be
- > a good thing, for instance wt. loss, cessation of smoking, stress reduction,
- > if he has good, then perhaps diving would be ok, but lets remember diving
- > can be very strenous and stressful, so this is something else to think
- > about.
-
- No argument from me, though I suppose it's hard for the person involved to
- make certain "drastic changes in lifesytyle" (including possibly giving up
- or severely curtailing his diving activities) not knowing the net effect of
- such changes (since ... "there is no definitive data ..."). Besides, it
- reminded me of the old joke about some 90-year-old attributing his longevity
- to "no smokin', no drinkin', and no foolin' with women ..." to which his
- advisee inquired, "And you call that LIVING?" :-)
-
- > suppose you are on the island of rangaroa in the s. pacific, there would
- > be no where to go to get care and the reason i bring this up is because when
- > i was there a older gentleman spent too much time in the sun and passed
- > out, it was not cardiac but if it was we were too far from reality
- > of life.
-
- I suppose those are the accepted risks when we travel to remote sites to
- pursue our love (scuba-diving). If I were in that gentleman's fins, I
- probably would pass out (away?) with a BIG "8-)" on my face. :-)
-
- > good luck to your friend and i hope you enjoyed your trip, post a summary.
-
- Thanks. The dives with bull (C. leucas) and Caribbean reef (C. perezi)
- sharks in Nassau were pulse-raising and fun| Will do a post, soon.
-
- -- Bob.
-