May is
rheumatoid arthritis (RA) awareness month. RA is a debilitating condition that can
profoundly impact mobility and overall quality of life.
اضافة اعلان
Globally, RA is
estimated to affect 0.46 percent of the population. Regarding the prevalence of
RA in Jordan, a 2011 study found that 0.36 percent of the Jordanian population
has RA, consistent with global rates.
Although there
is no cure for this condition, understanding the warning signs can allow for
earlier detection and treatment, which can slow the progression of the disease
and improve the odds of remission.
What is RA?
RA is an autoimmune disease — when the body’s immune system mistakes
certain parts of the body for a foreign entity — that affects joints and causes
joint pain, inflammation, and damages throughout the body.
In the case of
RA, the body mistakes the structure between the bones known as cartilage as a
foreign entity.
Cartilage is a soft, flexible structure found in joints and
acts as a cushion between two bones to absorb impact from daily activities and
provide fluid movement.
Due to the body
attacking the cartilage, it will eventually become withered and worn down, as
well as inflamed, which is ultimately the cause of joint pain.
RA is a
progressive disease which means that cartilage erosion will worsen over time.
Although complete remission of the
disease is often difficult, the progression
of the disease can be slowed.
Symptoms of RA
Typically, RA progresses bilaterally, which means that symptoms mirror
both on the left and right sides. In short, it is common for the same joint
symptoms to occur on both sides of the body.
The most
commonly affected joints are in the hands, wrists, and knees, but since RA is
an inflammatory disease, it can also affect other organs and tissue all over
the body, including the lungs, heart, and eyes.
Although RA is a
progressive disease, it is also characterized by periods of minimal or no
symptoms, followed by acute exacerbations known as flare-ups.
Symptoms of RA
include pain or aching in more than one joint, stiffness in more than one
joint, tenderness and swelling in more than one joint, and loss of function and
deformities.
Throughout the
body, it is also common to experience fatigue, low-grade fever (37.5–38.3
degrees Celsius), and loss of appetite.
Since early
detection is key to avoiding excessive joint damage, it is important not to
ignore any possible symptoms.
Diagnosing RA
Diagnosing RA poses a serious challenge due to the great variability in
patients, especially those still in the early stages.
Most doctors
follow the 2010
Rheumatoid Arthritis Classification Criteria to diagnose RA.
This criterion is a comprehensive scoring of signs and symptoms, and a total
score of six or more indicates RA.
The first
category looks at which and how many joints are affected. The more joints
involved and the smaller the joint, the higher the score. The second category
is the duration of symptoms. Typically, an individual with RA will have
symptoms for six or more weeks. Lastly, blood tests are used to help aid in
diagnosing.
No single blood
test can be used definitively, but several blood tests can help measure
inflammation, which is commonly associated with RA.
Once a diagnosis
of RA is made and treatment has begun, doctors will often use a score known as
the Disease Activity Score (DAS), of which DAS28 is the most common.
The DAS28
indicates the severity of the disease at any given moment and is used to track
the progression of the disease. DAS28 uses different factors such as lab data,
patient feedback, and joint swelling or tenderness. By using a formula, a score
between 0–9.4 is generated.
Generally
speaking, treatment is considered effective if the DAS28 score is less than
3.2.
Complications
Due to the systemic effects of RA, complications are not limited to
joints but can also increase the risk for many other diseases.
One of the most
common complications of RA is permanent joint damage which can severely impair
mobility. If left untreated, joints may become deformed and damage can occur to
cartilage and nearby tendons or bones.
Similarly, this
may also result in
carpal tunnel syndrome, which is the compression of the
nerve in the hand. This is often caused by inflammation and causes aching,
numbness, or tingling in the hands or fingers.
It is also
possible for those with untreated RA to develop subcutaneous nodules due to a
lesion in the skin layers that result in protrusions visible on the surface of
the skin.
In more severe
and untreated cases, complications may occur in the lungs as interstitial lung
disease, pulmonary fibrosis, or an increased risk of pneumonia.
In the
cardiovascular system, those with RA are twice as likely to develop heart
disease. In fact, coronary artery disease (
ischemic heart disease) is the
leading cause of death in those who have RA.
Renal failure is
another serious complication of RA and is the third most common cause of death
who have RA.
Causes and who is
at risk
There is no single cause for
RA, and it is currently believed that genetic and environmental factors both
play a role in the development of RA.
In terms of genetics, certain genes known as HLA
class II genotypes greatly increase the risk of developing RA. When combined
with lifestyle and environmental factors, those with this gene type are at the
highest risk.
Age and sex both play a role in developing
arthritis. Females are 2–3 times more likely to develop RA compared to males.
Additionally, the onset of RA is highest for those in their 50s.
However, the risk of developing RA increases in
males with age, whereas the risk tends to plateau after menopause.
Many environmental factors can also contribute to
developing RA. For those who smoke or are obese, the risk is increased.
Additionally, a diet that consists of a high intake of sodium, sugar, red meat,
and iron is also associated with an increased risk.
Treatment and management
There is no cure for RA, but
treatment is focused on slowing the progression of the disease. The strategy
for managing RA involves medication and has a huge emphasis on lifestyle
changes.
Obesity increases the risk of developing RA and can
also worsen symptoms for those who already have it. For this reason, low-impact
exercises are highly recommended and serve a variety of functions.
For one, the lost weight helps reduce pressure on
joints, and secondly, it will help improve range of motion and mobility.
Rest is also important in managing RA.
It is recommended that during flare-ups, you should
rest and resume exercise and activity once symptoms subside. Additionally,
getting plenty of sleep can also help reduce inflammation.
People have also found hot or cold compresses on
joints to be beneficial. There is no evidence that one is better than the other
and is based largely on personal preference.
Generally, cold compresses help with pain and inflammation,
whereas warm compresses help with improving mobility and reducing stiffness.
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