Juvenile Rheumatoid Arthritis
As the name implies, juvenile rheumatoid arthritis is a type of arthritis that primarily affects the young. Children as young as six months can be diagnosed with juvenile rheumatoid arthritis. In the United States, approximately 75,000 young people have this debilitating condition.
Like rheumatoid arthritis in adults, juvenile rheumatoid arthritis is essentially an autoimmune disease. This is a syndrome whereby the body produces antibodies that attack its own joint tissues. Currently, medical researchers have not determined that exact cause of juvenile rheumatoid arthritis. However, there are several theories as to how juvenile rheumatoid arthritis can happen.
Juvenile rheumatoid arthritis is a collective disease. The three identified forms are pauciarticular, polyarticular and systemic. In pouciarticular juvenile rheumatoid arthritis, a child may suffer from inflammation in few joints such as the knee and shoulder. If it is polyarticular, then many joints get inflamed simultaneously, for example knees, wrists, elbows, and so on. Polyarticular rheumatoid arthritis attacks symmetrically; for example, the joints of the left and right hand become inflammation at the same time.
Unlike pauciarticular and polyarticular, in systemic cases, parts of the body become affected along with the inflammation of some organs. Skin rashes, fever, inflammation of the joints and internal organs such as the spleen and liver may accompany systemic disease.
Pauciarticular juvenile rheumatoid arthritis affects a few joints, as little as four, or less. Half the children with juvenile rheumatoid arthritis have this type of arthritis, and usually the joints of the knees, ankles, and elbows are affected. Joints of the wrists, spine and finger or toe joints are rarely, if at all, affected. It normally affects joints on one side of the body and not both sides.
One particular type of Pauciarticular arthritis affects girls less than seven years of age, and in 33 percent of the cases inflames the eye. The other type affects boys eight years old and older, and affects the sacroiliac joints, ankles, hips, and knees, among others. They may suffer from redness and pain in the eyes, as well.
Systemic onset juvenile rheumatoid arthritis is the least common but affects both boys and girls alike. It is associated with inflammation of the internal organs. Symptoms may include daily fever as high as 103 degree and above, lasting for weeks or months. Inflammation and joint pain may, or may not, accompany the fever initially, but may appear months later.