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Many
people tend to think of arthritis as a disease that
affects older people. While it's true that most Americans
living with arthritis are over age 50, arthritis is
an equal-opportunity disease. Anybody can have arthritis.
One of the most common types of arthritis is rheumatoid
arthritis (RA). Like some other forms of arthritis,
RA occurs more frequently in women than men. It often
begins in middle age, with increased frequency in
older people. Children and young adults also develop
it.
Unlike
osteoarthritis, the "wear and tear" arthritis
that results from the mechanical breakdown of joint
cartilage, rheumatoid arthritis is an inflammatory
disease that causes pain, swelling, stiffness and
loss of joint function. It has several special features
that separate it from other forms of arthritis. First,
RA generally occurs in a symmetrical pattern (both
knees, both hands, etc.). It affects the finger joints
closest to the hand and the wrist rather than the
ends of the fingers. People with RA can experience
fatigue, occasional fever and general sense of not
feeling well. Joints affected are tender, warm and
swollen.
RA
affects different people in different ways. In one
person it may last a few months or a year or two and
go away without causing noticeable damage. Other people
can experience mild or moderate disease with flares
and remissions. Still others have severe disease that
is active most of the time, which can lead to serious
joint damage and disability.
A
normal joint is surrounded by a joint capsule that
protects and supports it. Cartilage covers and cushions
the ends of the two bones. The joint capsule is lined
with a type of tissue called synovium, which produces
synovial fluid. This clear fluid lubricates and nourishes
the cartilage and bones inside the joint capsule.
Since cartilage has no blood supply, if the cartilage
becomes damaged it cannot heal itself.
Understanding
the Inflammatory Process
In progressive RA, destruction to the
cartilage accelerates when the fluid and inflammatory
cells accumulate in the synovium to produce a pannus
-- a growth composed of thickened synovial tissue.
The pannus produces more enzymes that destroy nearby
cartilage, aggravating the area and attracting more
inflammatory white cells, thereby perpetuating the
process. This inflammatory process not only affects
cartilage and bones but can also harm organs in other
parts of the body.
The
inflammatory process is a byproduct of the body's
immune system, which normally fights infection and
heals wounds and injuries. When an injury or infection
occurs, white blood cells are mobilized to rid the
body of any foreign proteins, such as a virus. The
masses of blood cells that gather at the injured or
infected site cause the area to become inflamed. Under
normal conditions, the inflammatory process is controlled
and self-limited, but in people with chronic rheumatoid
arthritis, this process keeps going.
The
primary infection-fighting units are two types of
white blood cells - lymphocytes and leukocytes. Lymphocytes
include two subtypes known as T-cells and B-cells.
Normally, when a foreign agent infects the body, helper
T-cells recognize that the invader, known as an antigen,
is an alien and trigger a series of immune responses
to destroy it. In RA, however, a process called autoimmunity
occurs. The T-cells mistake the body's own collagen
cells as foreign antigens and set off a series of
events to rid the body of the perceived threat. Initial
events include stimulation of lymphocyte B cells to
produce antibodies -- molecules designed for attack
on a specific antigen. When these antibodies attack
the body's own tissue, they are called auto-antibodies.
The
leukocytes are the other major white blood cells that
are spurred into action by the overactive T-cells.
Leukocytes stimulate the production of two key players
in the inflammatory process: leukotrienes, which attract
even more white blood cells to the area, and prostaglandins,
which open blood vessels and increase blood flow.
As part of their activity, leukocytes also produce
cytokines -- small proteins that many researchers
believe are critical in the process that leads to
joint damage and may even be responsible for inflammation
that occurs in parts of the body beyond the joints.
In small amounts, these powerful chemicals are important
for healing. If overproduced, cytokines can cause
serious damage, including fever, shock, and even damage
to organs, such as the liver. Important cytokines
in the process of rheumatoid arthritis are those known
as tumor necrosis factor (TNF) and interleukins. Some
cytokines play a role in releasing specific enzymes.
One of the most important cytokines currently targeted
in rheumatoid arthritis research is tumor necrosis
factor. Levels of this cytokine soar in the synovial
fluid during arthritic flare-ups.
If
this process continues, the abnormal synovial cells
begin to destroy the cartilage and bone within the
joint. The surrounding muscles, ligaments and tendons
that support and stabilize the joint become weak and
unable to work normally. This leads to the pain and
deformity often seen with RA.
Scientists
who study RA now believe this damage begins during
the first year or two that a person has the disease.
That's why early diagnosis and aggressive treatment
is so very important in the effective management of
RA.
Diagnosing
Rheumatoid Arthritis
Diagnosing and treating rheumatoid arthritis
is a team effort involving the patient and a variety
of healthcare professionals. Patients can begin seeking
help through your family doctor or a rheumatologist.
A rheumatologist is a doctor who specializes in arthritis
and other diseases of the joints, bones and muscles.
RA
can be difficult to diagnose in its early stages for
several reasons. First, there is no single test for
the disease. Second, symptoms differ in different
people. Symptoms can mock other conditions. Finally,
the full range of symptoms develops over time. As
a result, doctors use a variety of tools to diagnose
the disease and to rule out other conditions.
You
can help by describing your symptoms, when and how
they began. Describe the pain, swelling and joint
changes you are experiencing. The doctor will want
to perform a physical examination of your joints,
skin, reflexes and muscle strength. Your blood may
be tested for rheumatoid factor (RF), an antibody
that is eventually present in the blood of most RA
patients. Not all people with RA test positive for
RF, especially in the early stages of the disease.
Other
common blood tests done include two that indicate
the presence of inflammation in the body, called erythrocyte
sedimentation rate (sed rate or ESR) and C-reactive
protein; a white blood cell count; and a blood test
for anemia. X-rays can be used to determine the degree
of joint destruction and monitor the disease on an
ongoing basis.
Treatment
Options
Doctors use a variety of approaches to
treat rheumatoid arthritis. These are used in different
combinations and at different times during the course
of the disease and are chosen according to the patient's
individual situation. While it is important to control
the pain and associated symptoms, it is critical that
the disease itself be monitored and managed so long-term
damage is kept to a minimum
No
matter what treatment plan the doctor and patient
choose, the goals are the same: relieve pain, reduce
inflammation, slow down or stop joint damage and improve
the person's sense of well-being and ability to function.
Elements
of a successful RA treatment plan
General
Guidelines
The treatment of rheumatoid arthritis
involves medications and lifestyle changes. Many drugs
are used for managing the pain and slowing the progression
of rheumatoid arthritis, but no medical program has
been found to cure the disease. The object of most
drug therapies is to reduce inflammation, prevent
damage to the bones and ligaments of the joint, preserve
movement, and as free from side effects as possible
over the long term.
Until
recently, physicians had recommended a "pyramidal
approach" for treating people diagnosed with
rheumatoid arthritis, using the least powerful drugs
first to avoid toxic effects, then building up to
stronger and stronger drugs until the disease was
under control. The first drugs used against rheumatoid
arthritis were usually nonsteroidal anti-inflammatory
drugs (NSAIDs). NSAIDS have not been shown to slow
or halt the course of the disease. These drugs relieve
pain by reducing inflammation, but do not contain
steroids. In the past, if NSAIDs were still not effective
after about four to six weeks, more potent drugs,
disease modifying anti-rheumatic drugs (DMARDs) were
added to the regimen. Such drugs are more effective
than NSAIDs and may even improve long-term function.
Some DMARDS have been shown to slow and halt the progression
of the disease.
However,
the problem with this pyramidal approach is its failure
to prevent the progression of joint destruction in
the majority of people with RA. Working through the
pyramid, drug by drug, generally takes 5 to 8 years.
Much of the damage in rheumatoid arthritis occurs
in the first two years when only the drugs used are
those that control symptoms or no drugs are used at
all.
Many
experts are now recommending that patients with moderate
to severe RA should start out immediately with DMARDs,
with or without NSAIDs, or start DMARDs after three
months if NSAIDs have not relieved symptoms. Indicators
for prompt and aggressive treatment with DMARDs include
slow progression, involvement in parts of the body
other than joints, high levels of rheumatoid factor,
and genetic markers. All of these drugs have potentially
toxic side effects. Certain factors that might warrant
against the aggressive approach include male gender,
older age, lack of genetic markers, and an acute onset
of the disease.
Now, let's look at medications and specific
areas of lifestyle change-
Medications-As
already stated, the use of medication is aimed at
reducing pain and slowing or halting the disease process.
Non-steroidal
anti-inflammatories. Two-thirds of people with
RA seek professional help for pain. The most common
pain relievers are non-steroidal anti-inflammatory
medications. There are dozens of NSAIDS and some are
safer than others. NSAIDS do not alter the course
of the disease but are designed to reduce inflammation
and pain. These drugs block prostaglandins, the substances
that dilate blood vessels resulting in inflammation
and pain. Pain and stiffness from RA increase gradually
during the night, reach their greatest severity at
the time of awakening. It's important to take your
dose, if singular, in the evening or, if twice daily,
morning and evening. All NSAIDS are capable of damaging
the mucous layer and causing ulcers and gastrointestinal
(GI) bleeding when taken for long periods. Other side
effects include dizziness, ringing in the ears, headache
and skin rash. If you experience new swelling and
rapid gain when using an NSAID, report it immediately
to your doctor. People with hypertension, severe vascular
disease, kidney or liver problems and those taking
diuretics must be closely monitored if they need to
take NSAIDS.
The
newer Cox-2 inhibitor medications, celecoxib (Celebrex)
and rofecoxib (Vioxx) are generally safer and easier
on the stomach. However, these two medications are
no more effective than other NSAIDS.
Disease-Modifying
Anti-Rheumatic Drugs (DMARDs) are designed to
slow down the progression of rheumatoid arthritis.
Studies show that these drugs significantly delay
the long-term damage and joint deformities associated
with RA. Methotrexate has the best record for long-term
use. Leflunomide (Arava) is the first new DMARD approved
in over 10 years. Studies indicate that it reduces
symptoms, possibly better than methotrexate, and may
even slow progression of RA.
Biologic Response Modifiers are
drugs that interfere with the autoimmune response
in RA. These drugs are genetically engineered to target
the immune factors, particularly tumor necrosis
factor (TNF) and certain interleukins, which play
a major role in the destructive RA process.
Etanercept. Recent studies show
etanercept (Enbrel) neutralizes TNF and has reduced
joint pain in more than 80% of patients, many of whom
could not tolerate or were unresponsive to standard
medications. Enbrel inhibits joint destruction/erosions.
Enbrel also has an FDA indication for juvenile rheumatoid
arthritis and psoriatic arthritis. Route of administration
is self-administered by subcutaneous injection, similar
to a diabetic patient giving insulin.
Other Biologic Response Modifiers are
also showing promise. Infliximab (Remicade)
approved for Crohn's disease can also reduce symptoms
of RA and inhibits joint erosions. Prior to receiving
Remicade, patients are tested for people who could
be exposed to tuberculosis. Route of administration
is an in-office intravenous infusion.
Although
some people with RA would prefer to stay off these
types of medications, it is critical to understand
that these drugs are the mainstay of a long-term quality
lifestyle.
Rest and Exercise-Both are important.
Rest more when the disease is active, and exercise
more when you are feeling well. Rest helps reduce
active joint inflammation and pain, and fights fatigue.
The need for rest varies from person to person, but
in general shorter rest breaks every now and then
are more helpful than long periods of best rest.
The
goal of exercise is to maintain a wide range of motion,
increase strength, endurance, and mobility, improve
general health, and promote well-being. A patient
should begin with the easiest exercises -- stretching
and tensing of the joints without movement -- and
then slowly progress to more difficult kinds. The
patient can next attempt mild strength training. Aerobic
exercises (walking, dancing or swimming-particularly
in heated pools). T'ai chi, which uses graceful slow
sweeping movements, is an excellent method for combining
stretching and range-of-motion exercises with relaxation
techniques. People with RA should avoid heavy impact
exercises such as running, downhill skiing, and jumping.
Common sense is your guide; if exercise is causing
sharp pain, stop immediately. If lesser aches and
pains continue for more than a hour or two, then a
lighter exercise program should be tried for awhile.
Exercise
is important for maintaining healthy and strong muscles,
preserving joint mobility and maintaining flexibility.
To simply reduce pain will not return function.
Joint
Protection-You can reduce stress to joints by
discovering new ways of doing old tasks. Zipper pullers,
long-handled shoe horns, thick-handled brushes, and
devices to help with getting on and off chairs, toilet
seats and beds are examples of things that help protect
joints. Sometimes people find that using a splint
for a short time for a painful joint reduces pain
and swelling as well.
Healthful
Diet-A nutritious diet with the proper amount
of calories, protein and calcium is important.
Surgery-Several
surgical procedures are available to people who have
severely damaged joint(s). They can reduce or eliminate
pain, improve joint function and appearance, and improve
lifestyle. Joint replacement surgery is the most frequently
performed for RA. Tendon reconstruction is done when
RA causes damage to tendons. This procedure is most
often done on the hands. Synovectomy is another procedure
sometimes done when its necessary to reduce inflamed
synovial tissue around a joint. Synovectomy is commonly
performed as part of a reconstructive procedure, especially
tendon reconstruction. Total joint replacement is
performed when a particular joint is damaged so severely
that the joint needs to be reconstructed with artificial
parts to restore normal joint movement without pain.
Keeping
a Positive Attitude
People with RA often have a hard
time coming to grips with the fact that their lifestyle
must be rearranged to accommodate their disease, that
they can't always do the things they used to. It can
be a difficult adjustment, particularly for people
in the prime of life, with children and jobs to manage.
Lifting your child or tying your shoes suddenly becomes
difficult or impossible.
Fear, anger and frustration combined
with pain and physical limitations can increase stress,
and make living with RA more difficult. Regular rest,
relaxation and visualization exercises do help. Exercise,
warm baths, music, support groups, taking time for
yourself and good communication with your healthcare
team will also reduce stress. Learn to let little
things go, and don't feel you have to do everything.
Studies continue to show that people
who learn about living with RA and participate actively
in their own care experience less pain and make fewer
visits to the doctors than do other people with RA.
People who are actively involved understand more about
the disease process, utilize many methods to reduce
pain, learn coping skills and have a greater sense
of control over their disease.
While there is no cure for rheumatoid
arthritis, we do know that people with a certain gene
are susceptible to the disease, and researchers are
honing in on what triggers it. For now, we can take
charge of RA and take comfort in the knowledge that
medicine has made great strides in its ability to
effectively treat RA before it causes serious damage.
About
the author:
Jan
Revella, R.N., arthritis nurse specialist, is founder
and director of Arthritis Education by Professionals,
Inc., based in Phoenix, Arizona. She is among the
most prominent speakers and educators on the subject
of arthritis in the United States. Her mission is
to empower people with arthritis to use knowledge
as power when making decisions about their personal
healthcare. Arthritis Education by Professionals,
Inc. provides educational programs and services to
people with arthritis.
©
Copyright 2005. Arthritis Education by Professionals,
Inc.
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