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Advice
for the newly diagnosed
Your
diagnosis is not a death sentence, but you should know
your options.
A
positive HIV antibody test is scary news but it's not a
death sentence. Many people are alive and well 15 years
or more after testing HIV positive. A positive test
result is an important medical message that may save or
extend your life. Whether you took the test or not,
sooner or later you would have learned of your HIV
infection status. If you learn by testing, you have a
chance to slow or prevent some of the possible medical
consequences.
If you
didn't get tested, HIV would announce itself at some
point in the form of an infection or damage to your
immune system. But if you had waited for the disease to
announce itself, many of your best medical options would
already be lost.
Most
testing services provide counseling to help people
handle the news. The real work, however, is up to you.
Given the right attitude and the right information, HIV
infection can be managed like a chronic illness, one
which some people seem able to survive for a long, long
time. Getting informed and taking charge of your health
will surely help you make the best of your situation.
This document can help you with the things you need to
do:
- Developing
a strategy for adapting to your new situation
- Learning
more about HIV and how it can affect you
- Understanding
medical tests
- Finding
out about your options for intervention
Reading
this section is a good first step. It's a little long, but
it's worth the time. It's about saving your life.
Table
of Contents
HIV
and the immune system
AIDS
is the most serious form of an illness caused by a virus
called the Human Immunodeficiency Virus (HIV). Although
it is well established that HIV is the primary cause of
AIDS, it not fully understood how it does it. In
general, the virus attacks or disables the body's immune
system. Over time, if the immune system become seriously
damaged, the body loses the ability to combat a variety
of illnesses, called opportunistic infections (OI's
) or conditions. Each new infection further wears down
the body's defenses. These infections and cancers, such
as pneumocystis pneumonia (PCP) and Kaposi's sarcoma
(KS), are the real killers of people with HIV.
This
gradual destruction of the immune system, however,
doesn't happen the same way in everyone, or at the same
pace. In some people, it may not happen at all. In a
small percentage of people, infection with HIV leads to
destruction of the immune system very rapidly, in just a
few years. But others remain well for 10 to 15 years or
longer. On average, most people remain well for about 10
years before experiencing the first serious symptoms.
Despite
the imperfect picture of how HIV destroys the immune
system, a number of things are well established:
- Tests
which measure the amount of virus in the bloodstream
(called "viral load" tests) can generally
predict how quickly HIV will damage the immune
system. In effect, viral load tests tell you the
expected rate of disease progression—the higher
the number, the faster the progression. Effective
treatments are now available which can greatly
reduce the level of virus, thus slowing the rate of
disease progression.
- Tests
which measure the level of a certain type of white
blood cells, called the CD4+ (CD 4 positive) can
measure the decline of immune health. Many
scientists feel that the CD4+ test tells you how far
you have already progressed toward AIDS or
AIDS-related infections. Treatment, however, can
prevent or delay many of these infections, as well
as slow the decline of the immune system.
- For
long periods, often several years, the body seems to
cope effectively with HIV in many people. The number
and percentage of CD4+ cells fall, but slowly.
During this period, most people suffer no obvious
ill effects and feel normal. Despite this, most
researchers believe that damage is being done to the
immune system in this period. Many scientists
believe that early intervention during this period
may have the greatest impact.
- Without
treatment, the body can slowly lose its ability to
fight infections. Some infections, like pneumocystis
pneumonia (PCP), become likely when the CD4+ count
falls below 200 or 300. Minor infections can occur
at counts higher than 300. Other life-threatening
infections become more likely when the count falls
below 50 or 100. Once the body loses its ability to
fight these infections, it's unclear whether current
treatment can restore it.
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of Contents
Disease
progression
HIV is a
"spectrum" illness: all who are infected have
the same disease, but there are many different stages to
it. AIDS is the name given only to the most serious
stage of HIV disease. In the least serious stage, people
are HIV seropositive, meaning they have tested
positive on the HIV antibody test but have no symptoms
of illness. If left untreated, most of those who are
infected generally progress along the spectrum toward
AIDS.
HIV
infection sometimes progresses slowly or sometimes
quickly. Several long-term studies have researched the
rate at which the disease progresses when left
untreated. Most conclude that about 50 percent of HIV
infected people progress to AIDS within 10 years of
infection, and that about 75 percent reach AIDS by the
15th year. What all such studies conclude is that HIV is
a progressive infection which leads to symptomatic
illness in the majority of people over time. Children
born with HIV and people infected through blood
transfusion seem to get sick more quickly. Studies with
women and people with hemophilia are inconclusive about
the rate of progression. Why people progress at
different rates is uncertain. It may be due to
differences in the strain of virus a person acquires.
Others feel it is influenced by genetic differences in
people, and still others suspect that lifestyle factors
make a difference.
Table
of Contents
Monitoring
immune health
Most of us wait until a disease shows up before doing
anything about it—"if it ain't broke, don't fix
it." In HIV disease, the immune system starts to
"break" immediately, not just when
opportunistic infections show up. Thus, monitoring the
health of the immune system is critically important.
There are two common approaches for doing this: (1)
Symptom Observation and (2) Lab Tests. Each has
advantages and disadvantages.
Symptom
observation
This
approach waits for active infections and disease to
occur. In HIV, this means watching out for such things
as thrush, pneumocystis, KS lesions and so on.
Advantages
It is easier to believe and take action when we are
faced with an obvious illness. People who feel sick
usually want to treat the illness as soon as possible.
Disadvantages
HIV may progress before symptoms appear. By the time
symptoms appear, options for treating the problem may
be less effective because the body is left with only
limited defenses.
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of Contents
Lab
studies and blood analysis
a) HIV-antibody testing
b) CD4+ cell testing
c) Viral load testing
d) Basic blood tests
Advantages
Indications of illness show up before illness becomes
apparent. The tests enable patient and doctor to act
to prevent serious infections before they occur and to
act on the basis of hard numbers, not just guesses.
Disadvantages
It is difficult to act on test results, since you
often feel fine no matter what the lab numbers say.
People who feel healthy may be less motivated to begin
treatment. Test results are variable, changing for
many reasons.
Because
HIV infection can be a life-or-death matter, it is
critical to choose the second approach. Taking a
preventive approach makes it possible to:
- use
treatments when they are most effective
- prevent
the most serious infections
- slow
the rate of disease progression and permanent damage
to the immune system.
Some
people say they hesitate to act before they are sick
because today's treatments are not perfect, hoping to
wait for something better to come along. However, no one
knows when perfect treatments will become available. It
is now well proven that today's treatments can extend
survival time. Although we can't predict the results in
every case, we do know what generally happens without
treatment.
The
purpose of preventive action is to slow the progress of
HIV. Once infected, you have one chance to manage HIV
disease correctly, so consider your options carefully
and learn how to tell if a therapy is working for you. A
preventive approach is the one which seems to offer the
clearest hope.
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of Contents
CD4+
testing
For many
years, testing the number of CD4+ cells was the most
common way to measure the effects of HIV disease. Low
numbers of these cells (below 200) accurately predicts
the risk of major infections. The meaning of test
results in between this critical level of 200 and the
normal level of 1,000 is unclear. Physicians once
typically started treatment for people when the CD4+ was
below 500, but this was always an arbitrary number
simply selected from clinical trials. By itself, this
number doesn't tell us enough about the state of
disease. It only shows that the level of CD4+ cells is
below normal, to varying degrees. Getting the full
picture of HIV disease requires additional tests,
especially the Viral Load Test.
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CD4+
cell ranges
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Low
|
Medium
|
High
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(under
300)
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(300-500) |
(500
plus)
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High
range:
In general, a CD4+ count above 500 suggests no
immediate danger, even though it may represent a loss
of half the normal CD4+ cell count (1,000). The 500
level is sometimes cited as the bottom of the
"normal" range, but this can be misleading.
While an occasional drop to 500 may be normal, a
steady or falling count of 500 or even 600 is not
normal and indicates suppressed immunity. At the very
least, dietary counseling, nutritional supplements,
CD4+ cell monitoring, and periodic use of other tests
are recommended in this range, whether or not
treatments are used.
Medium
range:
CD4+ counts in this range indicate significant decline
of the immune system. However, serious symptoms are
uncommon in this range. Some researchers believe this
is the optimum time to begin treatment, especially if
the viral load test also indicates significant viral
activity.
Low
range:
CD4+
counts below 300 indicate the greatest risk of
infections. A person with counts below 300 CD4+ may
remain stable for many years, especially with careful
health management. While some people have warning
signs in the form of symptoms before major infections
occur, this is not always the case. Some progress
directly from apparent health to serious OIs.
It has
become common to put people with CD4+ counts below 200
or 300 on preventive treatment against PCP (for example,
Bactrim/Septra), along with all people who have already
suffered an initial bout of pneumocystis.
Regardless of CD4+ cell count, yearly monitoring for
tuberculosis is becoming increasingly important.
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of Contents
Viral
load testing (PCR)
In
recent years, tests have become available which directly
measure the activity of HIV in the blood. These tests
give a more accurate picture of the rate of
disease progression. There are two commonly available
tests for measuring viral load. One is called
"quantitative PCR" (or "Q-PCR"), the
other "branched DNA" (or "b-DNA").
Though there are small differences between the two
tests, they are for practical purposes one and the same.
Viral
load testing measures the amount of new virus being
produced and released into the bloodstream. Several
studies have shown that higher levels of viral load are
associated with more rapid disease progression and a
greater risk of death. Lower levels are associated with
stability and reduced risk of progression, infection, or
death. Ideally, an HIV infected person should have no
detectable level of virus, which means that the level of
virus activity is too low to be measured. Currently
available tests measure down as low as 50 copies of
virus, the lowest amount presently measurable. This is
associated with the best possible clinical outcome.
Higher levels, ranging from several hundred upwards of
millions of copies of virus, are associated with higher
rates of disease progression. In short, the higher the
number, the more rapid the rate of disease progression.
Clinical
trials of new drugs use these tests to measure the
effect of drugs. A good antiviral drug can quickly
reduce the level of virus at least ten fold and often as
much as a thousand fold. The goal of therapy is to
reduce the viral load to the lowest level detected by
the test, usually below 50 viral copies.
HIV
infected people and their physicians use these tests to
make decisions about when and if to use antiviral drugs,
and to determine if a drug is working on not. When the
virus levels begin to rise again while using a drug,
most physicians believe it is time to switch to another
drug or combination of drugs.
Recent
studies have resolved most doubts about the use of these
tests and it is likely that reimbursement for them will
improve greatly. At the very least, the test provides a
rational basis for deciding when or whether to use
antiviral drugs, as well as a tool for determining
whether or not an antiviral drug is working.
Table
of Contents
Summary:
Testing
No
single test gives a total picture of immune health or
disease progression, but CD4+ cell testing and viral
load taken together are very important. As we learn to
manage HIV as a chronic illness, these tests provide
rational guidance about what treatments to use, when and
when not to use them, and how well they are working.
Table
of Contents
Intervention
against HIV
There
are several types of interventions which you can take
against HIV. Many are useful, but no one of them alone
is sufficient. Unfortunately, some of these approaches
are promoted with religious fervor, to the exclusion of
the others. The best overall approach may be one which
is inclusive, combining the best of each of the five
types of intervention.
General
health maintenance
This
means doing all of the things normally recommended for
leading a healthy life: proper nutrition and nutritional
support; adequate rest; avoidance of alcohol, smoking,
drugs and unnecessary stress; exercise and fresh air. In
short, all the things our mothers always recommended.
Taken alone, good health maintenance won't prevent
progression to AIDS or cure it, but it will give each
person the best fighting chance he or she has. A good
defense builds upon a solid foundation.
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of Contents
Supportive
therapies
This
category, sometimes called a holistic approach, can
include various supplementary approaches, such as:
stress reduction; massage; visualization, yoga and
relaxation techniques; psychological and spiritual
support; natural medicines; and many others. Many of
these can be helpful in dealing with symptoms of
illness, drug side effects, and keeping one's peace of
mind. Taken alone, however, they won't solve the
problem. Unfortunately, some practitioners of
complementary approaches become dogmatic, urging their
use to the exclusion of all others, even the medicines
recommended by physicians. When presented in this
manner, this approach can be harmful and may discourage
one from getting necessary medical attention. The best
practitioners see these as complimentary rather than
alternative therapies and work in conjunction with
physicians.
Table
of Contents
Antiviral
strategy
HIV
attacks and misdirects the immune system. Medicines can
help slow the spread of the offending virus. The best
known antiviral medications are "nucleoside
analogue" drugs like AZT, ddI, ddC, d4T, 3TC. More
recently, a new class of drugs called "protease
inhibitors" has been made available. This includes
drugs like saquinavir, indinavir, ritonavir and
nelfinavir. The most recent of all are
"non-nucleoside reverse transcriptase
inhibitor" (NNRTI) drugs like nevirapine and
delavirdine. The challenge of using these drugs is
knowing when and how much to use and how to combine
them. Used alone, none of these drugs will work for
long, but used together in rational combinations, they
can suppress HIV for many years and lengthen life.
For
more information regarding anti-viral treatment, please click
here.
Table
of Contents
Immune
modulating strategy
The goal
of immune modulating medications is to increase the
number or function of lost cells, such as CD4+ cells, to
restore the balance of the various components of the
immune system, or to diminish harmful activities caused
by infected cells.
Because
the immune system is sometimes suppressed, sometimes
overactive, and sometimes misdirected in HIV, it makes
sense to seek out medicines which might help correct
some of these problems. This is easy to describe but
difficult to do. Many researchers feel that we don't yet
know enough about the immune system to try to regulate
it. Some therapies have been shown to influence the
immune system in studies, and similar claims have been
made about some natural products. There is great popular
appeal to the notion that we should somehow "boost
the immune system" to help the body naturally
regulate itself against HIV. For the most part, this is
little more than an empty advertising slogan as there is
little evidence that anyone really knows how to do this.
Moreover, the body's natural defenses almost always seem
to fail in the fight against HIV. Perhaps even more than
the other types of intervention, it would be unrealistic
to expect this approach alone to solve the problems of
HIV.
In
developing these types of therapies it is difficult to
predict the overall effect because of the highly
interdependent nature of most immune functions.
Improving one area may harm another. At this point,
there is no clear or simple strategy for addressing the
defects of the immune system in HIV infection.
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of Contents
Opportunistic
infection strategy
Once the
immune system has failed to a significant degree, it
becomes necessary to try to prevent the occurrence of
the most common opportunistic infections (OI), or
prevent their return after a first occurrence.
OI
prevention or "prophylaxis" should be
considered when CD4+ counts are in or nearing a danger
zone (for example, the risk of PCP becomes high at CD4+
count of 300 or below, and the risk of CMV and MAI
increase rapidly when the CD4+ falls below 100).
Careful
and timely use of medication can prevent PCP altogether.
As the incidence of tuberculosis (TB) rises among
HIV-positive people, testing and possibly preventive
treatment is recommended. Similar preventive treatment
is rapidly becoming available for other infections as
well.
In
advanced HIV disease, an infected person often must try
to treat or prevent several different opportunistic
infections at the same time. This can lead to difficult
choices, since many medications can interact with each
other.
The key
to successful intervention is comprehensive
inclusion—doing all of the things that make sense in
your individual situation. The biggest mistake is to
dogmatically choose one approach over the others. HIV is
not a political debate or a matter of opinion—it is a
life threatening illness. Every decision about treatment
has consequences. Each infected person has little room
for mistakes. It makes no sense to bet your life on any
single philosophy of medicine.
Resistance
develops more rapidly in people with detectable viral
loads. Studies have shown that there is a correlation
between low viral loads and duration of response as it
is more difficult for the virus to mutate.
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of Contents
When
to start treatment
The
earliest possible treatment is recommended for
illnesses. Biologically, there is little reason to think
that HIV is any different. In fact, early treatment may
be even more important because of the seriousness of the
disease. But just what "early" means in the
case of HIV disease is not so clear.
Starting
points for antiviral medications are the subject of a
great deal of debate and theory. Some people believe
that antiviral medication is appropriate immediately
upon learning of the infection, whether or not the CD4+
count is falling, viral load is high or rising, or
whether symptoms are evident. Waiting might only let the
infection progress and spread to other parts of the
body.
At the
most optimistic extreme, some researchers are testing
whether beginning treatment almost immediately after
infection might someday literally "eradicate"
HIV infection. While this is an exciting hope, no one
has yet successfully "eradicated" HIV. To be
fair, no recently infected patient has undergone
treatment for the time necessary for this to happen. If
the hope of "eradication" is someday proven
true, then all the debates about when to start treatment
will end. In the meantime, eradication is a concept, not
a proven reality. Those who believe eradication is
possible argue for the earliest possible treatment.
A
second argument in favor of early treatment is that this
may prevent the loss of critical cells in the immune
system. But since we don't know exactly when the loss of
such cells occurs, it is still hard to know
"when" is the right time to start.
Some
researchers prefer to withhold treatment until later in
the course of disease. They believe it is best to save
the drugs for later when the virus is more active or
when the immune system shows obvious damage. They fear
that treating too early it may "use up" the
medicines before they are most critically needed, or
that people will experience long-term toxicity from the
drugs. Since none of the current medications can be used
indefinitely, this argument cannot be casually
dismissed. Even these researchers, however, believe it
wise to start before there is evidence of major damage
to the immune system. Just "when" that occurs
is unclear.
The
only way we will get clear answers to these questions is
when more clinical trials are completed. In the
meantime, the question remains a matter of personal
choice. For information about starting treatments based
on viral load test results, read the Project Inform
document on viral load.
Almost
all researchers agree that it is necessary to start
antivirals when symptoms are present, when the CD4+
count is falling, or the viral load is high.
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of Contents
Available
treatments
The
AIDS Committee of Windsor offers various treatment
information. Please visit "Information"
for explanations of the treatment options available
today.
Table
of Contents
The
bottom line
- HIV
infection is not a death sentence; you'll be OK for
quite some time, no matter what happens.
- You
can gain power over HIV by learning how it operates.
- Learn
to monitor your health; understand the common lab
tests.
- Get
acquainted with the Project Inform five-step model.
- Get
informed about your treatment options.
- Develop
a treatment strategy that makes sense for you.
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