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Juvenile idiopathic arthritis (JIA) is a childhood disease that causes
inflamed, swollen joints. This makes joints stiff and painful. The term "juvenile idiopathic arthritis" is replacing the American "juvenile rheumatoid arthritis" and the European "juvenile chronic arthritis."
Some children with JIA
grow out of it after they get treatment. Others will need ongoing treatment as
adults.
There are several types of JIA.
Oligoarticular (formerly known as pauciarticular) is the most common form. It is
often the mildest type. In this type, 1 to 4 joints are affected in the
first 6 months of the disease. If 4 or fewer joints continue to be affected after the first 6 months, it is called persistent oligoarthritis.
If more joints become affected after 6 months, it is called extended oligoarthritis. Your child may have pain in the knees,
ankles, fingers, toes, wrists, elbows, or hips.
Polyarticular affects 5 or more joints
in the first 6 months of symptoms and tends to get worse over time. It can be severe. It may be more like rheumatoid arthritis in adults.
Systemic can be the most serious. It causes pain in many
joints. It can also spread to organs.
Enthesitis-related most often affects the areas where tendons and ligaments attach to bones (the enthesis). The joints may also be affected.
Psoriatic usually combines joint tenderness and inflammation with psoriasis of the skin or problems with nails.
What causes JIA?
Doctors don't really know what causes the
disease. But there are a number of things that they think can lead to it. These
things include:
An
immune system that is too active and attacks joint
tissues.
Viruses or other infections that cause the immune system
to attack joint tissues.
Having certain
genes that make the immune system more likely to
attack joint tissues.
What are the symptoms?
Children can have one or many symptoms, such as:
Joint pain.
Joint
swelling.
Joint stiffness.
Trouble
sleeping.
Problems walking.
Fever.
Rash.
In some cases these symptoms can be mild and hard for you
to see. A young child may be more cranky than normal. Or a child may go back to crawling
after he or she has started walking. Your child's joints may feel stiff in the morning. Or your child may have trouble walking.
Children with this disease
can also get inflammatory
eye disease. This can lead to permanent vision
problems or blindness if it's not treated. Eye disease often has no symptoms
before vision loss occurs.
How is JIA diagnosed?
Your doctor will ask
questions about your child's symptoms and past health and will do a physical
exam. Your child may also have blood tests and a urine test to look for signs
of the disease. If your child has the disease, these tests can help your doctor
find out which type it is.
How is it treated?
Your child's treatment will be
based on the type of JIA he or she has, and how serious it is.
Exercise and physical therapy help keep your child's
muscles flexible and strong.
Occupational therapy helps your child live as independently as possible.
Surgery to correct joint problems is only done in rare
cases.
Even when JIA isn't severe, your child may still need long-term
treatment. To make sure that treatment is right for your child, work closely
with the medical team. Learn as much as you can about your child's disease and
treatments. Stay on a schedule with your child's medicines and exercise.
How do you cope with JIA?
Take good physical care of yourself so that you can help your child through the more difficult periods of illness. Consider finding a support group of families who live with juvenile idiopathic arthritis. Your local chapter of the Arthritis Foundation can provide classes and support group information.
The cause of
juvenile idiopathic arthritis (JIA) isn't well
understood. Most experts believe it is caused by a combination of things,
including:
An
immune system that is too active and attacks joint
tissues.
Viruses or other infections that cause the immune system
to attack joint tissues.
Having certain
genes that make the immune system more likely to
attack joint tissues.
Symptoms
The most common symptoms of all forms of
juvenile idiopathic arthritis (JIA) include:
Joint pain and swelling. They may come and go,
but they are most often persistent.
Joint stiffness in the
morning.
Irritability, refusal to walk, or protecting or guarding
a joint. You might notice your child limping or trying not to use a certain
joint.
Often unpredictable changes in symptoms, from periods with no
symptoms (remission) to flare-ups.
Even though pain is a common symptom of JIA, your child may not be able to describe the pain. Or he or she may
be used to the pain. To know if your child is in pain, look for changes such as stiff movements, rubbing a joint or muscle, or avoiding movement.
Other symptoms vary depending on
which type of JIA your child has.
The fever usually reaches
103°F (39.5°C) to
106°F (41°C) once or twice a day. It falls to normal between spikes.
The rash is spotty, flat, and sometimes faint red or pink. It may occur
with the fever. It may be on the torso, face, palms, soles of the feet, and
armpits. The rash often comes and goes. It may appear late in the day or in the
early morning. It may also be brought on by warm baths or by rubbing or
scratching the skin.
Other conditions with symptoms similar
to JIA include
growing pains, overuse, injury, bone infection, and
certain inflammatory diseases. Many conditions can cause painful,
stiff joints in children. Most often, occasional joint pain in children is
related to an injury or aggravating factors, such as repetitive overuse in
sports activities. JIA is a fairly uncommon cause of these symptoms.
What Happens
The course of
juvenile idiopathic arthritis (JIA) is unpredictable,
especially during the first few years after a child is diagnosed. JIA can be mild, causing few problems. It can get worse or disappear without
clear reason. Over time, the pattern of symptoms becomes more predictable. Most
children have good and bad days.
Of all children who have JIA, 3 or 4
out of 10 children will have long-term disability.footnote 1
Long-term disability may
range from occasional stiffness, the need for pain medicine, and limits on
physical activity to ongoing JIA and the need for major surgery such as
joint replacement. But for most adults who had JIA as children, any long-term
problems tend to be mild and don't affect their overall quality of life.
A child's long-term outlook depends on the type of JIA and any complications he or she has. Treatment also affects the child's long-term outlook. Starting treatment early may help lower the chance of long-term disability.
Types of JIA
Oligoarticular JIA (oligoarthritis): Oligoarticular (formerly known as pauciarticular) is the most common form of JIA. It is
often the mildest type. In this type, 1 to 4 joints are affected in the
first 6 months of the disease. If 4 or fewer joints continue to be affected after the first 6 months, it is called persistent oligoarthritis.
If more joints become affected after 6 months, it is called extended oligoarthritis. Your child may have pain in the knees,
ankles, fingers, toes, wrists, elbows, or hips. He or she may continue to have the disease as an adult. This risk is higher if more joints are affected after the first 6 months.
Polyarticular JIA (polyarthritis): Polyarticular JIA affects 5 or more joints
in the first 6 months of symptoms. This type
of JIA is more severe than most cases of oligoarticular JIA. That's because polyarticular JIA affects more joints,
and it tends to get worse over time. Many children will have active disease that continues into adulthood. There are two types: rheumatoid factor-positive (RF-positive) and rheumatoid factor-negative (RF-negative).
Systemic JIA: Systemic can be the most serious. It causes pain in many
joints. It can also spread to organs. Many will continue to have active disease as adults. While some children have one course of this disease that lasts 2 to 4 years, others continue to have mild joint pain and flares of other symptoms. A few have ongoing destructive arthritis, often into adulthood, even with treatment.
Enthesitis-related JIA: Enthesitis-related most often affects the areas where tendons and ligaments attach to bones (the enthesis). The joints may also be affected. The long-term outlook for this form of JIA is less well known. Some children progress to other conditions such as adult ankylosing spondylitis. This is more common in boys who have hip arthritis.
Psoriatic JIA: Psoriatic is the least common form of JIA. Children with psoriatic arthritis usually have joint tenderness and inflammation combined with psoriasis of the skin or problems with nails. The long-term outcome for this type of JIA isn't well known. Some children continue to have skin and joint symptoms. For a few, the ability to do daily activities can become limited.
No clear risk factors for
juvenile idiopathic arthritis (JIA) are known at this
time. It may run in families.
When To Call a Doctor
Call your doctor immediately if:
Your child has sudden, unexplained swelling,
redness, and pain in any joint or joints.
A baby or child is
unusually cranky or reluctant to crawl or walk.
Red eyes, eye pain,
and blurring or loss of vision occur in a child who has been diagnosed with any
form of juvenile arthritis.
Call your doctor if any of the following symptoms continue
for more than 2 days:
A child has unexplained daily fever spikes
[103°F (39.4°C) to
106°F (41.1°C)] with or without
a pink skin rash.
A baby or child is reluctant to crawl or walk in
the early morning but improves after 1 to 2 hours.
A child taking aspirin or another nonsteroidal
anti-inflammatory drug (NSAID) develops stomach pain not clearly related to
stomach flu, but possibly related to medicine use. (Symptoms may include heartburn,
nausea, or refusal to eat.)
Joint pain and skin rash develop
following a sore throat.
It can be hard to know when an infant has joint
pain. A young child may be unusually cranky or may revert to crawling after he
or she has started walking. You may notice gait problems with a walking child
or stiffness in the morning.
Who to see
For a first check of joint pain and other
symptoms of
juvenile idiopathic arthritis (JIA), consult with
a:
Findings from a physical exam,
including the pattern and nature of joint symptoms, are important keys to the
diagnosis of
juvenile idiopathic arthritis (JIA). Lab tests may be used to support the diagnosis and make sure symptoms aren't caused by another health problem. JIA is often diagnosed only after other possible causes of symptoms have been ruled out and the pain and stiffness have lasted for at least 6 weeks.
Your doctor will probably schedule routine checkups to see how your child is doing and how well treatment is working. This will include talking about inflammatory eye disease and exams for this disease, such as a slit lamp eye exam .
Treatment Overview
Treatment goals for
juvenile idiopathic arthritis (JIA) are to reduce your
child's joint pain and to prevent disability. Physical therapy and medicine are
the basis of medical treatment for JIA.
Treatment depends on the type and severity of JIA. Even when JIA is uncomplicated, an affected child may need years
of medical treatment or checkups. To make sure that your child's care is appropriate for the stage of disease, work
closely with the medical team. Learn as much as you can about your child's disease and treatments. And stay on
schedule with medicine and exercise.
Your doctor will set up a treatment team. It may include a pediatrician, an ophthalmologist, a rheumatologist, and a physical and/or
occupational therapist.
Occupational therapy . An occupational therapist (OT) can help your child learn ways to do self-care activities, play, and take part in school without making symptoms worse.
Treatment depends on the type and severity of JIA. Even when JIA is uncomplicated, an affected child may need years of medical treatment or checkups. To make sure that your child's care is appropriate
for the stage of disease, work closely with the medical team. Learn as much as
you can about your child's disease and treatments. And stay on schedule with
medicine and exercise.
Inflammatory eye disease may develop in children with
JIA. This form of eye disease generally has no symptoms and can lead to
a permanent decrease in vision or blindness. So part of your child's treatment
plan should be regular checkups with an
ophthalmologist.
What to think about
Surgery may be used in a very small number of children with JIA who have severe joint deformity, loss of movement, or pain.
Some children with JIA have no appetite, so malnutrition becomes a medical concern. If
your child has little appetite for food, see a registered dietitian for help.
Prevention
The cause of
juvenile idiopathic arthritis (JIA) isn't well
understood, and there is no way to prevent it. But you can help prevent symptoms. See Home Treatment .
Home Treatment
You can do a lot at home to help your child lead a normal life, relieve his or her symptoms, and prevent complications.
Do range-of-motion exercises . These help maintain your child's joint range
and muscle strength. They also prevent
contractures. You may need to help an infant or younger child do the exercises.
Find a balance between rest and activity . Your child may need extra naps or quiet time to rest the joints
and regain strength. But too much rest may lead to weakness in
unused muscles.
Partner with school staff . You can plan creative ways of dealing with JIA-caused limitations. This
can help your child make the best of his or her abilities.
Stick to a medicine schedule. An older child may find it easier to remember to take
medicine by using a pillbox or chart for a day's or week's worth of medicine.
Ask your doctor if the dosage can be adjusted so your child can
take it at times that are most convenient and won't make him or her feel
"different." To avoid stomach upset, you can also give nonsteroidal
anti-inflammatory drugs (NSAIDs) with meals or a small snack. Be safe with medicines. Read and follow all instructions on the label.
Use assistive devices . These can help
your child hold on to, open, close, move, or do things more easily. Devices include Velcro fasteners and enlarged handles. Getting your child lightweight clothing and toys will also help.
Make sure your child sees the doctor regularly. He or she should also have eye exams with an ophthalmologist. Inflammatory eye disease can develop
as a complication in children with JIA.
Dealing with stiffness
Apply heat to stiff and painful joints
for 20 minutes, repeating as needed. You can use hot water bottles. Or make hot packs from towels dipped in warm
water or wet towels microwaved for 15 to 30 seconds. Always make sure that hot water
bottles and hot packs aren't too hot for your child's skin. Keep a cloth
between the hot water bottle and your child's skin. Do not use heat if your child's joints are red and warm.
Many children who have
JIA have less stiffness in the morning if their joints are kept warm during the
night. To help keep joints warm, try footed pajamas, thermal underwear, a sleeping bag, a heated water
bed, or an electric blanket.
Encourage your
child to take a warm bath or shower first thing in the morning. It can help ease
stiffness. Have your child stretch gently afterward.
Give morning
medicines as early as possible, with a snack or breakfast, to prevent upsetting
an empty stomach.
Help yourself to help your child
Living with
JIA often means making lifestyle
changes and adjustments. This can be frustrating and demanding for you, your
child, and your family. Here are a few steps to help yourself:
Learn about the disease. Knowing more about it will help you and your child have less
fear, make better decisions, and have better results.
Work as a team with
your child's doctors and other health professionals. The outlook is better when you and your child actively manage your child's health.
Take good physical care of yourself so that you can help your child
through the more difficult periods of illness. Consider becoming involved with
a support group of families who live with JIA. Your
local chapter of the Arthritis Foundation can provide classes and support-group
information.
Remember that many children with JIA don't have long-term
disease and disability. They go on to lead healthy adult lives.
Medications
Most children with
juvenile idiopathic arthritis (JIA) need to take
medicine to reduce inflammation and control pain and to help prevent more
damage to the joints. When inflammation and pain are controlled, a child is
more willing and able to do joint exercises to improve joint strength and
prevent loss of movement.
Many different medicines are used to
treat JIA. No single medicine works for every child. Your doctor will try to find medicine that helps relieve symptoms and that has few side effects. This may take some time.
Medicine choices
Although treatment varies depending on the needs of each child, certain medicines are often tried first (first-line
medicines), while others are often saved to try later if they are needed
(second-line medicines). Be safe with medicines. Read and follow all instructions on the label.
Medicines tried first
Nonsteroidal anti-inflammatory drugs (NSAIDs) . Naproxen is the most often
used NSAID treatment for JIA because of its low
incidence of side effects compared to its effectiveness. Ibuprofen may be used instead. But in general, less
than one-third of children will have significant relief from NSAIDs.footnote 1 If you see no
improvement after 6 weeks, your doctor may try a different NSAID.
Medicines tried later
Corticosteroids. Injections can be used for children who have
just a few joints affected or who have enthesitis. Steroid medicines by mouth or through an IV are often used for
widespread joint pain or systemic problems such as fever or pericarditis. Steroid medicines work faster than some other drugs, so they may also be used until other medicines start working. Corticosteroids are sometimes used with disease-modifying antirheumatic drugs (DMARDs) . These are also called slow-acting antirheumatic drugs (SAARDs).
Mydriatics, which are eyedrops that dilate the pupil
and keep the iris from sticking to the cornea or lens
What to think about
Some children with JIA gain significant benefit from early methotrexate
treatment, and this treatment is becoming
more common in an effort to prevent joint and eye damage. Early treatment with
methotrexate is often used for polyarticular JIA.footnote 1
Biologic therapy is a newer option to treat
JIA that doesn't respond to other treatments.
Biologics such as etanercept have had some success in relieving symptoms and decreasing the number of flare-ups.
Combination therapy-such as using methotrexate
with sulfasalazine, hydroxychloroquine, or etanercept-has been used on a
limited basis to treat JIA. Most medical experience with combination therapy is
with adults. Only children with severe JIA that has not improved with
methotrexate or sulfasalazine are considered for combination treatment.
If your child is on aspirin therapy
Yearly flu shots are recommended
for children who are on long-term aspirin therapy. Children on long-term
aspirin therapy who get
chickenpox or the
flu are at risk for getting Reye
syndrome. Although there is a risk, Reye syndrome is very rare. Very few
cases have been reported in children with chronic arthritis
who were being treated with aspirin. If your child has been exposed to
chickenpox or the flu, talk to the doctor about giving your child acetaminophen to
control pain and relieve fever until the incubation period, or the illness
itself, has passed.
Surgery
Surgical treatment may be used in a very small
number of children whose juvenile idiopathic arthritis (JIA) has caused severe
joint deformity, loss of movement, or pain.
The main things to think about for surgery during childhood are the child's age and whether his or her bones are still growing. If at all possible, joint reconstruction is delayed until
childhood bone growth is complete (at about 18 years of age).
Surgery choices
When surgery to correct joint deformity is needed, the
more common procedures include:
Other surgical procedures for JIA are recommended only in selected cases. These include:
Osteotomy, which
involves removing a wedge of bone to allow more normal alignment of the joint.
It may be recommended for children who have severe joint
contractures.
Epiphysiodesis. In this surgery, the portion where growth occurs is removed in order
to stop growth.
Synovectomy or tenosynovectomy. These are rarely used for JIA. Synovectomy involves the removal of the joint lining (synovium) and/or the covering of the tendon
(tenosynovectomy) to reduce joint inflammation.
Arthrodesis. This is rarely used in children. It involves
fusing two bones in a diseased joint so that the joint can no longer
move.
Other Treatment
Other treatment for juvenile idiopathic arthritis (JIA) includes physical and
occupational therapy, healthy eating, pain management, and some complementary therapies.
Physical and occupational therapy
Physical therapy will be an important part of
treatment if your child has severe JIA. The
physical therapist can help set up an exercise program
for your child, either for the child to do alone or to do with help from an
adult. Exercises should be done every day and should be regularly reviewed by the
physical therapist. The therapist will make sure that the
exercises are being done correctly. He or she can decide whether any exercises should be
added, dropped, or changed.
Splinting at night. Splinting will help keep the
wrist, hand, knee, and/or ankle joints straight. This may prevent pain,
morning stiffness, and contractures. Working splints can help support a joint
and relieve pain during writing or other hand tasks.
Serial casting of the knees, ankles, wrists, fingers, and/or elbows. This is a
temporary straightening and casting of the affected joint. The cast is then
removed, and the child goes through some physical therapy. Then a new cast is
applied with the joint stretched a bit more.
Shoe lifts or inserts. These help to equalize leg lengths for children in whom one
leg grows at a different rate than the other. For some types of inflammation in the feet, you can try using shoe inserts that transfer your weight onto your heel. This takes weight off the sore middle or front part of the foot.
Healthy eating
Healthy eating means eating a variety
of foods so that your child gets the nutrients he or she needs for growth and
development. Good nutrition may also help fight the effects of JIA. Your
child can eat all types of food as long as his or her weekly intake is balanced
and varied.
Talk to your child's doctor about healthy foods for children with JIA. There are a few nutrients that may be helpful. These include:
Vitamin D and calcium , which can help
control bone loss that is often linked with inactivity and with corticosteroid
treatment.
Vitamin C, which is an antioxidant that may help
reduce inflammation in the body. It is found in citrus fruits, tomatoes,
berries, broccoli, cabbage, and brussels sprouts.
Omega-3 fatty
acids in fish oil, which have been shown to mildly reduce inflammation in adults with
rheumatoid arthritis. They may have the same effect in children who have JIA. Good sources of omega-3 fatty acids are cold-water fish and flaxseed
oil.
Heat, cold, or water therapy may reduce muscle spasms around joints, which can cause
significant pain and movement problems.
Complementary medicine therapies for pain management
Massage is used to promote relaxation,
relieve pain, and restore normal joint movement.
Guided imagery may be used to promote relaxation and manage
pain.
Acupuncture is mildly effective in relieving pain in
adults who have rheumatoid arthritis. It may help relieve pain in children who
have JIA, but this has not been proved.
Other Places To Get Help
Organizations
Arthritis Foundation (U.S.)
www.arthritis.org
National Institute of Arthritis and Musculoskeletal and Skin Diseases (U.S.)
www.niams.nih.gov
References
Citations
Hashkes PJ, Laxer RM (2005). Medical treatment of juvenile ideopathic arthritis. JAMA, 294(13): 1671-1684.
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Gomez FE, Kaufer-Horwitz M (2012). Medical nutrition therapy for rheumatic disease. In LK Mahan et al., eds., Krause's Food and the Nutrition Care Process, 13th ed., pp. 901-922. St Louis: Saunders.
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Ringold S, et al. (2013). 2013 update of the 2011 American College of Rheumatology recommendations for the treatment of juvenile idiopathic arthritis: Recommendations for the medical therapy of children with systemic juvenile idiopathic arthritis and tuberculosis screening among children receiving biologic medications. Arthritis Care and Research, 65(10): 1551-1563. DOI: 10.1002/art.38092. Accessed February 5, 2015.
Simon L, et al. (2002). Treatment of pain in children and older adults with arthritis. In Guideline for the Management of Pain in Osteoarthritis, Rheumatoid Arthritis, and Juvenile Chronic Arthritis, 2nd ed., chap. 5, pp. 119-129. Glenview, IL: American Pain Society.
Wedderburn LR, Nistala K. (2013). Etiology and pathogenesis of juvenile idiopathic arthritis. In GS Firestein et al., eds., Kelley's Textbook of Rheumatology, 9th ed., vol. 2, pp. 1741-1751. Philadelphia: Saunders.
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Credits
ByHealthwise Staff Primary Medical ReviewerSusan C. Kim, MD - Pediatrics E. Gregory Thompson, MD - Internal Medicine Martin J. Gabica, MD - Family Medicine Kathleen Romito, MD - Family Medicine Specialist Medical ReviewerJohn Pope, MD - Pediatrics
Hashkes PJ, Laxer RM (2005). Medical treatment of juvenile ideopathic arthritis. JAMA, 294(13): 1671-1684.
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