Rheumatoid arthritis (RA) is the most common inflammatory arthritis, affecting from 0.5% to 1% of the general population worldwide. Although RA is primarily considered a disease of the joints, abnormal systemic immune responses are evident and can cause a variety of extra-articular manifestations. The prime target of RA is the synovium considering its vascularity, with subsequent deposition of immune complexes. The cause is not known but few factors can trigger its occurrence, i.e., environmental (smoking, bacterial or viral infection) and in genetically susceptible individuals (HLA DR 4). Gender is another factor with Female : Male ratio being 3:1. Other most important risk factor could be hereditary involvement.
Diagnosis is made with the typical presentation of multiple joint pain (particularly small joints), early morning stiffness, presence of Rheumatoid factor or Anti CCP in the serum and radiographic changes of arthritis.
The focus of treatment should be early diagnosis and to keep the disease activity at its low. The stream line of treatment comprises of DMARDS (disease modifying anti-rheumatoid drugs) which is used to combat RA is early stages with significant disease control. Glucocorticoids pave way for the next line of treatment which rapidly controls the disease process. Recent development is the use of Biologic DMARDS like Anakinra, Rituximab and Abatacept which are infused to control multiple inflammatory mediators in patients not responding to the standard treatment protocol.
Patients with significant synovial hypertrophy (inflammation) of large joints like the knee will definitely benefit from Arthroscopic synovectomy which is considered the most important inflammatory producer. In advanced cases with significant joint erosions as in the knee, hip and shoulder, total joint replacement is the only available effective treatment which would improve the quality and life as well as render the patients pain free.
Symptoms of RA include:
- pain, swelling, and stiffness in more than one joint
- symmetrical joint involvement
- joint deformity
- unsteadiness when walking
- a general feeling of being unwell
- loss of function and mobility
- weight loss
Various other forms of Arthritis do exist which are namely
Gout (seronegative arthritis) in which an alteration in the protein metabolism resulting in either over production or reduced excretion of the by product – Uric Acid, which accumulates in small joints initially (great toe) and later may involve other joints. The normal serum uric acid is less than 5.7mg/dl in females and less than 7.7 mg/dl in males. In aggressive case, uric acid crystal deposition in joints may cause excessive damage. Factors considered to cause gout are high protein diet, alcohol consumption, stress.
Gout can be effectively controlled with appropriate uric acid lowering diet, healthy lifestyle habits and uric acid lowering drugs such as Colchicine, Allopurinol, Febuxostat.
There is a separate entity of Arthropathy apart from gout which are considered seronegative arthritis which shows inflammatory markers in the serum without of presence of RF (Rheumatoid factor). These includes
- Psoariatic arthritis caused secondary to skin disease, and appropriate treatment with steroids and controlling the infectious process will help control or suppress the arthritic process.
- Ankylosing spondylitis which is spinal equivalent of Rheumatoid arthritis with cardinal features being involvement of axial skeleton especially the sacro-iliac joint, asymmetric peripheral joint involvement, usually associated with HLA B 27 gene, pain along tendon insertion (enthesopathy),with male preponderance.
- Reactive arthritis
- Juvenile Rheumatoid arthritis.
Appropriate diagnosis and early treatment of these conditions shall render a painfree and healthy life.
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