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Frequently Asked Questions about APS Answers to
Questions 41-50This FAQ is adapted with permission by the
Rare
Thrombotic Diseases Consortium.
Some answers were also provided by members of our
Medical Advisory
Committee.
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Does APS Go Away? (S.P.B, MD)
Not really--although, as with the other
autoimmune diseases, its signs and symptoms may vary from time
to time. There may be only one clinical manifestation of
APS--one episode of deep-vein thrombosis (DVT), for example--and
then none ever again; it can't be concluded that the threat is
gone. All laboratory values for which we routinely test may even
become completely normal and may stay that way for an extended
period of time; that can't be taken to mean that APS has
vanished.
Remember that the recognition of APS as a disease
entity is relatively recent, and that it was only in 1998,
following an international conference on APS, that the
preliminary diagnostic criteria were formulated. I stress the
word "preliminary"; those criteria are based only on data
established thus far--which include only two clearly identified
antibodies, anticardiolipin (ACL) and lupus anticoagulant (LAC).
Other factors--including other antibodies--will almost certainly
be recognized in the future, as research goes forward.
Meanwhile, anyone who has been diagnosed with
APS--and his or her physician--should assume the persistence of
risk and continue to take appropriate protective measures.
Back to top. - 4/25/06 ~ S.P.B, MD
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If my antibodies become negative, should my doctor
stop my anticoagulant? (S.P.B, MD) Not necessarily. Sudden stopping of an anticoagulant
could, under some circumstances, have extremely disastrous results.
And as I have often cautioned medical students: While laboratory
assays are invaluable both in diagnosis and in following treatment,
the physician should treat the patient, not the lab test.
How to handle this situation is very much a clinical decision, based
not only on blood values but on the doctor's experience, familiarity
with the patient's history, examination and, to be frank, gut
feelings (medicine is an art as well as a science).
It should be noted, too, that in such a situation, the physician may
feel that further lab tests should be ordered, since there are
additional proteins (unrelated to APS) involved in the clotting
process. Assessing the levels of these elements may be helpful in
clarifying the picture.
Back to top. - 4/25/06 ~ S.P.B, MD
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I am positive for anti-cardiolipin
antibody [ACL] but have never had a confirmed clot. What are the
chances that I will clot in the future? And what kind of treatment
should I be on? (R.A.S.R, MD)
With regard to treatment, the first thing
to do is work with your doctor to reduce or eliminate as many other
risk factors for blood clots as possible. Stopping smoking,
controlling blood pressure, and controlling obesity, may all be
quite important. Your doctor may recommend avoiding certain
medications that carry a risk for blood clots, for example, birth
control pills containing estrogens.
Many experienced doctors in the field recommend low-dose aspirin (81
or 100 mg per day) for people with positive tests, but who have not
had a blood clot. This assumes that the person is not allergic to
aspirin and has no medical reasons not to take it. Aspirin probably
reduces the risk of clotting significantly (but not entirely).
Prospective studies to determine if and how helpful aspirin is are
underway. In patients with lupus, a medication called
hydroxychloroquine (Plaquenil) is sometimes used in this situation.
Hydroxychloroquine is very helpful in controlling skin and joint
manifestations of lupus and several investigators have observed that
it also reduces the risk of blood clots in lupus patients with
antiphospholipid antibodies.
Back to top. -
06/27/06 ~ R.A.S.R, MD
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How long should you take
baby aspirin and LMWH during your pregnancy? How long do should you
take it after you have had the baby and why? (R.A.S.R, MD)
Most experienced physicians in the field
recommend starting treatment as soon as the woman determines she is
pregnant. Treatment is held around the time of delivery to avoid
excess bleeding and then resumed for approximately six weeks.
Treatment is continued because the period of time immediately
followin the birth of a baby, i.e., the postpartum period, is a time
of increased risk for blood clots.
Back to top. -
06/27/06 ~ R.A.S.R, MD
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I've been diagnosed with
APS. What are your thoughts on nutrition and exercise to help with
this condition?
(S.P.B, MD) There are no specific diet or exercise guidelines for the APS
patient. If you have APS, you're at heightened risk for problems
involving the heart, lungs, and circulatory system. That means you
should follow lifestyle guidelines calculated to minimize risk to
those parts of your body, and they are essentially the very same
guidelines that have been widely publicized for people who are known
to suffer from high blood pressure, high cholesterol, and familial
tendencies to overweight and/or diabetes.
To wit: Don't smoke. Avoid heavily sugared and heavily salted foods,
and foods containing (or prepared with) saturated fats and transfats.
Eat a generally well-balanced diet, being sure it includes fruits,
vegetables, and fish (if you're a vegetarian, talk to your doctor
about supplementary omega-3--and while you're at it, ask your
doctor's advice about a multivitamin supplement). Keep your weight
within the range your doctor says is right for you. Engage in
moderate but regular exercise (needn't be a formal program; do
whatever you enjoy, but DO it), which is good for weight control,
keeping bones strong, and circulation generally.
Back to top. - 07/20/06 ~ S.P.B, MD
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I'm ten and one-half weeks
pregnant, and have had two prior miscarriages. I've had three
separate tests showing elevated anticardiolipin IgM (the values were
11, 14, and 18), and my hematologist says that I have APS. But a
perinatologist with whom I've just met says that the positive ACL
IgM tests are not indicative of APS at all, and that only ACL IgG is
related to APS. Now, I'm quite confused! Do I have APS, or not? (S.P.B, MD) Of course no physician can or should undertake a diagnosis without
personally seeing the patient, and this young woman's specific
question can't be answered here. Speaking generally, however: IgM
and IgG are two of three subclasses of immunoglobulins--substances,
produced by certain of the white blood cells, that contain specific
antibodies; the third is IgA. The last is very rarely associated
with APS, but the dismissal of one of the others isn't quite
correct. While the IgG connection is more common, either IgG or IgM,
or both, may be associated with APS, and the combination of the
elevated ACL (although the values are not alarmingly high) and the
two miscarriages certainly suggests the condition. If there were no
contraindications, I would probably suggest that such a patient be
on a daily regimen of "baby" (81 mg) aspirin, if she isn't already.
Back to top. - 07/20/06 ~ S.P.B, MD
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I have been struggling
with a number of symptoms for almost three months now. It started
with a horrible marbley rash on my feet and ankles, with numbness
and pins and needles in my arms and legs. I've also had mental fog
and some other symptoms. Livedo reticularis has been diagnosed in my
feet, I've had a positive ANA test, and I have these antibodies.
Does this necessarily mean that I have APS? (T.L.O, MD)
Technically speaking, the SYNDROME means
that the patient has either had a blood clot (PE, DVT, stroke, etc)
or recurrent miscarriages, in addition to the antibodies. Livido
reticularis, fatigue, aches & pains, memory problems, etc, are
frequently seen in patients with the syndrome, but they don't
qualify for making a patient have the syndrome in the absence of
clots or miscarriages.
Back to top. - 07/27/06 ~ T.L.O, MD
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What causes
Antiphospholipid Antibody Syndrome? (S.P.B, MD)
With some other kinds of medical conditions, causes--and, thus,
issues of cure and prevention--are reasonably clear. In the case of
specific infections--influenza or TB, for example--once the
causative agent (a virus or bacterium, for example) is found and its
behavior in the body studied
and understood, the challenges are to find the appropriate
antibiotic or other drug to combat it, then to develop a vaccine to
prevent future attacks.
In other kinds of illness, these issues are a great deal more
complicated--and often very unclear. They are especially so in the
case of the autoimmune diseases. The antiphospholipid syndrome (APS)
is one of those, along with lupus, rheumatoid arthritis, diabetes,
and a host of others.
We do know, in a very general way, what goes wrong: The body's
immune system, normally a helpful--indeed, essential--operation that
protects and defends the body against infectious agents and other
invaders, misbehaves and attacks parts of the body itself. Elements
of that defense system called antibodies, normally the front-line
troops against "foreign" agents, instead go after the body's own
tissues. In the case of diabetes, for example, the insulin-producing
cells of the pancreas are targeted. In APS, the victims are
substances, called phospholipids, that are integral parts of the
membranes of cells. The cells that appear to be singled out for
attack in APS are those of the circulatory system, and the syndrome
is mainly manifested by problems with that system.
Why does this happen? We don't yet understand that. We believe that
in APS, as in the other autoimmune disorders, heredity may be
somehow involved--to a degree. If so, it doesn't involve a distinct
pattern of inheritance as with, say, hemophilia, or Huntington's
disease, in which we can predict, with mathematical confidence, the
"odds" of relaying the condition. There's no such pattern in any of
the autoimmune diseases--only the observation that relatives of
patients often have autoimmune diseases too, or at least detectable
antibodies. If there is some kind of hereditary mechanism that makes
some people especially susceptible, or vulnerable--we don't yet know
what it is.
But what sets off the active disease? Is the immune system activated
against a particular threat, such as an infection, and then fails to
"deactivate" after the threat has been dealt with? Perhaps. (Note
pertinent to APS: Phospholipids aren't peculiar to humans; bacteria
also contain
them.) Does some element in the individual's environment trigger the
process? Some toxic substance in the air? Maybe. Does something go
amiss with the system's ability to distinguish between self and
non-self ("foreign" substances)? That's possible, too.
We just don't yet know. All of these theories have been, and are
being, examined, chiefly by looking into the history of patients
with the particular condition and attempting to correlate the
existence of certain syndromes with exposure to the suspected
trigger. In APS, for instance, some researchers have suspected
connections with certain viruses, but the results haven't been
consistent; while one researcher finds that many of a group of APS
patients has been exposed to a particular virus, another, studying a
different group, finds no such connection. The search continues.
The short answer to the question of what cases APS is, for now,
simply: We don't know.
Back to top. -
10/06/06 ~ S.P.B, MD
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I have APS, and I am wondering what my
birth control options are. I realize that I can't take anything with
estrogen--but what about the Mirena IUD and Micronor? Are those
safe, since they are progesterone only? What other options can you
recommend? (S.P.B, MD)
You're wise to be concerned about
the kind of birth control you choose, and you're right in concluding
that you shouldn't use either oral contraceptives or devices
containing estrogen.
A word, first, about the specific products you mention, for those
reading this who are unfamiliar with them. The Mirena is an IUD,
which stands for "intrauterine device," a device placed within the
uterus; this particular IUD releases a hormone called levonorgestrel
over a five-year period.
Micronor is a so-called "minipill," a form of oral contraceptive; it
contains a similar hormone, norethindrone. Both levonorgestrel and
norethindrone are forms of progestin, a synthetic progesterone (a
hormone, in addition to estrogen, produced in the ovaries; it's also
produced by the placenta during pregnancy).
Expert opinions, frankly, differ among both rheumatologists and
gynecologists when it comes to the progestin-only products. There's
general agreement that IUDs all pose some risk of uterine
perforation or other injury, and the particular one you mention is
specifically not recommended for women who have had any prior pelvic
inflammatory disease (PID), have experienced an ectopic (outside the
womb) pregnancy, or who have not successfully borne at least one
child. "Minipills" are generally viewed as not entirely dependable
and have been reported to cause irregular bleeding.
My own feeling is that in the presence of a systemic illness that
has itself been associated with a variety of other problems, it's
best to avoid all hormonal forms of pregnancy prevention. In my
view, your best choice is a physical barrier form of contraception,
of which there are a number of
choices: condom, diaphragm, cervical cap, and so on.
An alternative, if you are in a lasting relationship and are sure
that you want to completely avoid the chance of pregnancy, is
surgical contraception--tubal ligation ("tube tying"), or, for the
man, vasectomy.
Although these procedures have occasionally been reversed, they
should be considered permanent.
Back to top. -
10/29/06 ~ S.P.B, MD
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Will having APS
shorten my life? Will I be in any way impaired? Are there changes I
should make in my life because I have APS? (S.P.B, MD)
The answer to your first two
questions is: Not necessarily. That may, in turn, depend upon
you--bringing us to your third question. In my opinion, the answer
is definitely yes.
Historically and statistically, APS is associated with
higher-than-usual susceptibility to a number of conditions with
life-shortening potential.
Thus, while everyone should take prudent precautions to preserve and
optimize health, APS underscores the importance of these
precautions.
As you doubtless know, the chief potential threat in APS is the
formation of clots that can interfere with the normal function of
your heart and circulation (thus threatening other organs depending
on that circulation, as well). That is, APS poses what medicine
calls a "risk factor." The risk is heightened if it's combined with
OTHER risk factors. You can take a number of steps to eliminate some
of those factors:
u
Two
obvious and very serious risks are smoking and obesity. If you
smoke, quit. If you're overweight, get your weight down to normal
and maintain it.
u
Eat a
sensible, balanced diet that's low in cholesterol and other fats
(including transfats), and includes such natural anticoagulants as
peas, onions, scallions, and garlic.
u
If
you've already been diagnosed with any heart or circulatory
problem--high blood pressure or high lipids, for example--and your
doctor has prescribed medications and/or other measures, follow
those directions faithfully.
u
Don't
take oral contraceptives, which are thrombophilic--i.e., tending to
encourage clot formation. (And since APS is not uncommonly seen in
families, urge close relatives who may contemplate going on "The
Pill" to be tested for APS first.)
u
Talk to
your physician about taking daily 81 mg ("baby" or "low dose")
aspirin, which discourages clot formation. NOTE: While this is an
over-the-counter drug, you shouldn't put yourself on such a regimen
without medical advice.
u
Other
tests, for conditions that might suggest additional precautions,
might be helpful, and your doctor may have already routinely
performed such tests. These might include screening for lupus, for
instance, which is often associated with APS, and for certain
factors that may signal higher-than-average risk of heart disease.
u
If you
contemplate pregnancy, be sure to discuss it with your regular
physician, and also be sure that you have expert prenatal care and
monitoring by an obstetrician familiar with APS and skilled in the
management of high-risk pregnancies. (And don't even THINK about
home birth; charming as the idea may seem, it's not for you.)
Back to top. - 12/24/06 ~ S.P.B, MD

This FAQ is adapted with permission by the
Rare
Thrombotic Diseases Consortium.
Some answers were also provided by members of our Medical Advisory
Committee.
| Abbreviation |
Medical
Advisory Committee Member |
| T.L.O, MD |
Thomas L. Ortel, MD, PhD |
| R.A.S.R, MD |
Robert A. S. Roubey, MD |
| S.P.B, MD |
Sheldon Paul Blau, MD |
| A.L, RPh |
Al Lodwick, RPh, MA |
| A.A.O, MD |
Adedayo A. Onitilo, MD, MSCR |
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