What do you do when you are bitten by a tick?
A patient pulled a tick off a thigh 10 months ago. He
watched for a rash or other symptoms.
Nothing happened and the incident was quickly of sight, out of his
mind. Three to four months later he
started to generally feel crummy, tired and achy. He thought he was just run down, probably just
stress at work and at home. He was confident things would soon clear. But they
didn’t. The fatigue turned into bone crushing exhaustion. He found he was
losing his mental edge. This former marathon runner was finding it hard to get
out of bed; his ability to think clearly and his short term memory were increasingly
impaired. He scheduled a routine physical with his family doctor and requested
a Lyme test. His doctor informed him that everything looked good except the
Lyme test which was positive. The GP ordered 3 weeks of doxycycline. The
treatment did not help at all. He
returned to his family doc who said he was not surprised the treatment failed
but there was nothing more he could do. The doc said that the 3-week therapy
was all the CDC would allow. After cajoling, the primary care physician agreed
to prescribe an additional 2-week course of doxy but warned it would not help.
The prediction came true.
I saw the patient a couple of weeks ago as he weakly limped
into my office having trouble getting onto the examination table. He admitted
to increasing confusion and bouts of disorientation.
Where did the notion that the CDC only allows 3 weeks of
doxycycline come from? How did the prescient physician know another 2 weeks of
doxy was not going to help?
The CDC links with its strategic partner, the IDSA. The IDSA wrote guidelines 10 years ago which
it still apparently clings to. Let’s see
– the spirochete responsible for Lyme disease was discovered in 1982: for all
intents and purposes the disease we know is 34 years old. Therefore, guidelines
written 10 years ago were penned without the benefit of knowledge garnered
during the entire last third of the disease’s life.
The guidelines include “facts” which we now know to be
clearly incorrect. For example, the documents states there is no scientific
plausibility for the notion that post-Lyme syndrome is due to persistence of
organisms. The last NIH sponsored study by Fallon which suggests organisms
persist was not published until 2007. The lead author believes in persistence.
Animal studies in mice, dogs and primates support persistence. Test tube
studies support persistence. Even a xenodiagnoses study recently showed that
pristine ticks can acquire Lyme infection from humans with early Lyme previously
treated by CDC guidelines. Most of this evidence was not available in 2006.
The IDSA guidelines do not discuss a clinical scenario like
the one discussed in the patient’s history. The guidelines strangely discuss
acrodermatitis and lymphocytoma, rare conditions known only to exist in Europe
caused by species of Borrelia not found in North America. The guidelines,
written with a didactic, professorial flare, were out of touch will the
realities of clinical Lyme disease in America at the time they were written.
The guidelines do make a distinction between early Lyme and
late stage Lyme, especially when it involves the central nervous system.
The patient’s clinical course most closely resembles the
late stage, central nervous system involvement type. The guidelines recommend that 3-4 weeks of
intravenous Rocephin be considered (along with a spinal tap). The 21 days of doxycycline is not what the
guidelines recommended for the patient. The family doctor was confused. (who
wouldn’t be?) The guidelines state that
only partial resolution of symptoms should be expected and that the impulse to
prescribe longer courses of therapy be stifled. This reasoning should be
questioned in the face of clear and convincing evidence of Lyme persistence.
To summarize: The family doctor mistakenly thought that the
CDC would only allow a 3-week course of doxycycline and the doctor knew that
treatment was destined to fail, even when extended by a couple of weeks. I
assume this understanding was the result of years of clinical experience. (The CDC does not have the authority to control a doctor's prescriptions). The
IDSA guidelines, linked to the CDC, probably recommended a course of intravenous
therapy for this patient, not the 3 weeks of doxycycline. What is clear is that
the obsolete documented warned doctors the therapy would not work (only be
partially effective).
Actually the IDSA guidelines were deleted from the United
States DHHS guidelines clearinghouse because they are more than 10 years old.
The only listed, vetted and currently active guidelines are those written by
ILADS.
Unfortunately, the CDC, IDSA and the institutions of
American Medicine do not recognize ILADS.
From the perspective of mainstream
medicine these guidelines do not exist. In the absence of guidelines, the
system tells us answers must come from the appropriate vetted experts: Board Certified Infectious disease
specialist.
Doctors call LLMDs do not exist according to mainstream
medicine.
The Lyme paradigm war has been raging for decades and shows
few signs of letting up any time soon.
This patient in fact saw an Infectious Diseases expert
before seeing me. The expert said the
patient never had Lyme disease in the first place because the test results
showed IgM antibodies not IgG antibodies. This misconception is discussed
elsewhere in my blogs, somewhat exhaustively. The patient disagreed with the assessment, as
do I.
The system predictably got it wrong for a number of reasons,
not within the scope of this discussion.
A recent book written by Afrin implores us to “Never Bet
Against Occam.” The theorem informs us that the solution (correct hypothesis)
to a problem is generally the simplest one: the one requiring the fewest number
of assumptions.
The expert made a bad bet.
The patient was bitten by a tick and got sick. Occam informs
us the patient has Lyme disease or something that looks and acts a whole lot
like it.
This brings us back to the original question. What do you do
if you are bitten by a tick?
The answer has to be to take antibiotics for some duration,
in hopes of preventing something like the disaster that befell this
patient. The correct regimen is unknown
and is a matter of discussion and opinion. But, the correct answer to the
question is NOT: do nothing and wait to
see if a rash appears.
A long, difficult journey likely awaits the unfortunate patient
who, largely based on widely disseminated misinformation, made the wrong
choice.