Stomach problems can wreck
dive vacations, as many of our
readers can attest. For example,
Tina Peterson and her husband
(Omaha, NE) visited Coco View
on Roatan last September. She
wrote, “The worst part about our
vacation was that we got diarrhea .
We were not the only ones.
Literally half of the guests were
sick part or all of the week. We
did not drink the water
(although we were told it was
safe). I assume it was the water
the kitchen was cooking with that
made us ill. It really sucked being
sick on vacation. My husband
missed two days of diving, and I
missed one day. A few people on
the resort only got in a few dives
the entire week. The resort has a
limited selection of medications,
and all of the stomach meds were
gone two days after we arrived.”
Hal Koch, MD, reported at an
Underwater Hyperbaric
Medicine conference, “Much of
the world has mostly contaminated
drinking water. The World
Health Organization started a
program of providing clean and
safe drinking water for developing
countries at a cost of one billion U.S. dollars. The program
was a total failure due to civil
strife, wars, and refugee movements.
In essence, you cannot go
outside North America or
Western Europe and expect to
have safe drinking water. ”
As a preventive for
traveler’s diarrhea ,
Pepto - Bismol
helps about 65%
of the time. |
With that in mind, we asked
Doc Vikingo to describe what you
can do to avoid hourly toilet duty
on your next dive vacation.
* * * * * *
Whether you call it La Turista ,
Delhi Belly, Tiki Trots, or
Montezuma’s Revenge, it’s usually
not life-threatening. But it’s always
unpleasant and inconvenient—
especially if you get hit while
underwater. Typical signs and
symptoms include the rapid development
of diarrhea, nausea, bloating,
cramping, and weakness.
Despite all its sobriquets, traveler’s diarrhea (TD) is largely the
result of just a few microbial culprits.
More than 80 percent of the
cases result from ingesting liquids
and foods contaminated by either
human or animal fecal matter. TD
is usually caused by bacteria, but it can also be brought on by parasites
and viruses. Although not
related to an infection, diarrhea
can also result from greasy, fatty,
and spicy foods, items you are
not used to, or just excessive vacation
consumption.
The chances of contracting
TD at a dive venue depend mostly
on the degree of development
of the location. For example, the
odds of contracting TD increase
as you travel from the U.S. to the
Caribbean, or Latin America to
Southeast Asia. The CDC’s
“ Traveler’s Health” Web site
(http://www.cdc.gov/travel/) is
a good source for assessing the
risk of various locations.
What’s a Body to Do?
You can avoid most gastrointestinal
illness by being cautious
about food and drink and by frequently
washing your hands.
While most travelers focus on
ensuring the fluids they drink are
pure, food-borne pathogens are the number one cause of infection.
Eat only fruits and vegetables that
have been thoroughly cooked, or at
least peeled and cleaned. Shy away
from leafy greens that are difficult
to wash thoroughly. Stick with
recently and well-cooked items
served very hot. Avoid raw foods
such as seviche and shellfish, and
undercooked meat or fish. Pass on
the street vendors and eateries that
appear unhygienic.
Major resorts and restaurants in
higher risk areas often use purified
tap water or serve bottled water.
Live-aboards, with properly maintained
desalinization systems, produce
potable water. If in doubt, ask.
And don’t forget to ask about the
ice in your drinks. Bottled beverages
like soda are generally safe, but
avoid products like milk and beer, if
they are not pasteurized, and fresh
fruit juices sold at roadside stands.
I have heard divers say that
adding lime or spirits to what one
drinks offers protection. Poppycock.
They may make drinks tastier, but
that’s about it.
When Basic Preventive
Measures Don’t Work
Given a compelling need to take
a preventive medication, Pepto-
Bismol is often the product of
choice. It helps about 65 percent of
the time when taken four times
daily, beginning several days before
traveling. However, it shouldn’t be
used for more than three weeks and
people with aspirin sensitivity, kidney
disease, or those taking blood
thinners should avoid it.
Antibiotics such as Cipro,
Bactrim, or Septra have a 70-95 percent
efficacy taken once a day. They
should only be considered for highrisk,
short-term travelers whom
severe diarrhea may seriously harm
(e.g., persons with chronic kidney
failure or insulin dependent diabetes).
If the cause of your diarrhea
is something other than the bacteria
targeted by the antibiotic or a resistant bacterial strain, the drugs will
simply make things worse.
Treatment
Most often the illness will be
self-limiting and can be treated
with Pepto-Bismol. However, if
you have a bloody stool, high
fever, severe abdominal pain, or
persistent vomiting seek immediate
medical help. If the condition
doesn’t abate after a couple of
days, or resolves and then
returns, see a doctor.
The over-the-counter antidiar rheal Imodium controls diarrhea,
although it should be used
judiciously. It can prolong the illness
while controlling some
symptoms. It is best used as an
adjunct to antibiotics. Lomotil
requires a prescription and is not
recommended for bacterial diarrhea
due to possible adverse
effects on the large intestine.
Before traveling, discuss the
issue with your physician and get
appropriate prescriptions.
Antibiotics may be prescribed
with the same precautions noted
in the prevention section above.
Although antibiotics are often
available over the counter in foreign
countries, this should not
encourage self-treatment. Besides
the risk that you may choose the
wrong drug for the bug you
have, these drugs can cause
severe or fatal allergic reactions.
Some, also, cause sensitivity to
the sun, which can occasionally
be extreme.
Additional Steps
Fluid loss from diarrhea can
increase a diver’s susceptibility to
DCS. In addition, Lomotil and
Imodium can be drying, and
many antibiotics are best accompanied
by liberal amounts of
water. If you get ill, drink copious
amounts of water, sports drinks, or
clear, salty broth. Avoid caffeinated
beverages, dairy products, and
prune, apple, and orange juices.
Signs of worrisome dehydration
include extreme thirst, dry mouth,
passing reduced amounts or dark
yellow urine, dizziness, cramping in
the extremities, and warm, dry
skin. If you develop any of these,
seek prompt medical attention.
Start yourself on an oral rehydration
solution such as Rehydralyte
or Pedialyte. Or, produce your own
by mixing one teaspoon of salt and
eight teaspoons of sugar in a quart
of purified water, making a fresh
solution every 24 hours.
An episode of TD forces a day
in bed in about 20 percent of the
cases. It should go without saying
that if you don’t feel well enough
to dive safely and comfortably-—
don’t.
----Doc Vikingo