|A hand severely affected by rheumatoid arthritis. This degree of swelling and deformation does not typically occur with current treatment.|
|Symptoms||Warm, swollen, painful joints|
|Complications||Low red blood cells, inflammation around the lungs, inflammation around the heart|
|Usual onset||Middle age|
|Diagnostic method||Based on symptoms, medical imaging, blood tests|
|Differential diagnosis||Systemic lupus erythematosus, psoriatic arthritis, fibromyalgia|
|Medication||Pain medications, steroids, Nonsteroidal anti-inflammatory drugs, disease-modifying antirheumatic drugs|
|Frequency||0.5–1% (adults in developed world)|
Rheumatoid arthritis (RA) is a long-term autoimmune disorder that primarily affects joints.It typically results in warm, swollen, and painful joints. Pain and stiffness often worsen following rest. Most commonly, the wrist and hands are involved, with the same joints typically involved on both sides of the body. The disease may also affect other parts of the body, including skin, eyes, lungs, heart, nerves and blood. This may result in a low red blood cell count, inflammation around the lungs, and inflammation around the heart. Fever and low energy may also be present. Often, symptoms come on gradually over weeks to months.
While the cause of rheumatoid arthritis is not clear, it is believed to involve a combination of genetic and environmental factors.The underlying mechanism involves the body's immune system attacking the joints. This results in inflammation and thickening of the joint capsule. It also affects the underlying bone and cartilage. The diagnosis is made mostly on the basis of a person's signs and symptoms. X-rays and laboratory testing may support a diagnosis or exclude other diseases with similar symptoms. Other diseases that may present similarly include systemic lupus erythematosus, psoriatic arthritis, and fibromyalgia among others.
The goals of treatment are to reduce pain, decrease inflammation, and improve a person's overall functioning.This may be helped by balancing rest and exercise, the use of splints and braces, or the use of assistive devices. Pain medications, steroids, and NSAIDs are frequently used to help with symptoms. Disease-modifying antirheumatic drugs (DMARDs), such as hydroxychloroquine and methotrexate, may be used to try to slow the progression of disease. Biological DMARDs may be used when disease does not respond to other treatments. However, they may have a greater rate of adverse effects. Surgery to repair, replace, or fuse joints may help in certain situations.
RA affects about 24.5 million people as of 2015.This is between 0.5 and 1% of adults in the developed world with 5 and 50 per 100,000 people newly developing the condition each year. Onset is most frequent during middle age and women are affected 2.5 times as frequently as men. It resulted in 38,000 deaths in 2013, up from 28,000 deaths in 1990. The first recognized description of RA was made in 1800 by Dr. Augustin Jacob Landré-Beauvais (1772–1840) of Paris. The term rheumatoid arthritis is based on the Greek for watery and inflamed joints.
RA primarily affects joints, but it also affects other organs in more than 15–25% of cases.Associated problems include cardiovascular disease, osteoporosis, interstitial lung disease, infection, cancer, feeling tired, depression, mental difficulties, and trouble working.
Arthritis of joints involves inflammation of the synovial membrane. Joints become swollen, tender and warm, and stiffness limits their movement. With time, multiple joints are affected (polyarthritis). Most commonly involved are the small joints of the hands, feet and cervical spine, but larger joints like the shoulder and knee can also be involved. 1098 Synovitis can lead to tethering of tissue with loss of movement and erosion of the joint surface causing deformity and loss of function. The fibroblast-like synoviocytes (FLS), highly specialized mesenchymal cells found in the synovial membrane, have an active and prominent role in these pathogenic processes of the rheumatic joints.:
RA typically manifests with signs of inflammation, with the affected joints being swollen, warm, painful and stiff, particularly early in the morning on waking or following prolonged inactivity. Increased stiffness early in the morning is often a prominent feature of the disease and typically lasts for more than an hour. Gentle movements may relieve symptoms in early stages of the disease. These signs help distinguish rheumatoid from non-inflammatory problems of the joints, such as osteoarthritis. In arthritis of non-inflammatory causes, signs of inflammation and early morning stiffness are less prominent. 1098The pain associated with RA is induced at the site of inflammation and classified as nociceptive as opposed to neuropathic. The joints are often affected in a fairly symmetrical fashion, although this is not specific, and the initial presentation may be asymmetrical. :
As the pathology progresses the inflammatory activity leads to tendon tethering and erosion and destruction of the joint surface, which impairs range of movement and leads to deformity. The fingers may suffer from almost any deformity depending on which joints are most involved. Specific deformities, which also occur in osteoarthritis, include ulnar deviation, boutonniere deformity (also "buttonhole deformity", flexion of proximal interphalangeal joint and extension of distal interphalangeal joint of the hand), swan neck deformity (hyperextension at proximal interphalangeal joint and flexion at distal interphalangeal joint) and "Z-thumb." "Z-thumb" or "Z-deformity" consists of hyperextension of the interphalangeal joint, fixed flexion and subluxation of the metacarpophalangeal joint and gives a "Z" appearance to the thumb. 1098 The hammer toe deformity may be seen. In the worst case, joints are known as arthritis mutilans due to the mutilating nature of the deformities.:
The rheumatoid nodule, which is sometimes in the skin, is the most common non-joint feature and occurs in 30% of people who have RA.It is a type of inflammatory reaction known to pathologists as a "necrotizing granuloma". The initial pathologic process in nodule formation is unknown but may be essentially the same as the synovitis, since similar structural features occur in both. The nodule has a central area of fibrinoid necrosis that may be fissured and which corresponds to the fibrin-rich necrotic material found in and around an affected synovial space. Surrounding the necrosis is a layer of palisading macrophages and fibroblasts, corresponding to the intimal layer in synovium and a cuff of connective tissue containing clusters of lymphocytes and plasma cells, corresponding to the subintimal zone in synovitis. The typical rheumatoid nodule may be a few millimetres to a few centimetres in diameter and is usually found over bony prominences, such as the elbow, the heel, the knuckles, or other areas that sustain repeated mechanical stress. Nodules are associated with a positive RF (rheumatoid factor) titer, ACPA, and severe erosive arthritis. Rarely, these can occur in internal organs or at diverse sites on the body.
Several forms of vasculitis occur in RA, but are mostly seen with long-standing and untreated disease. The most common presentation is due to involvement of small- and medium-sized vessels. Rheumatoid vasculitis can thus commonly present with skin ulceration and vasculitic nerve infarction known as mononeuritis multiplex.
Other, rather rare, skin associated symptoms include pyoderma gangrenosum, Sweet's syndrome, drug reactions, erythema nodosum, lobe panniculitis, atrophy of finger skin, palmar erythema, and skin fragility (often worsened by corticosteroid use).[ citation needed ]
Diffuse alopecia areata (Diffuse AA) occurs more commonly in people with rheumatoid arthritis.RA is also seen more often in those with relatives who have AA.
Lung fibrosis is a recognized complication of rheumatoid arthritis. It is also a rare but well-recognized consequence of therapy (for example with methotrexate and leflunomide). Caplan's syndrome describes lung nodules in individuals with RA and additional exposure to coal dust. Exudative pleural effusions are also associated with RA.
People with RA are more prone to atherosclerosis, and risk of myocardial infarction (heart attack) and stroke is markedly increased.Other possible complications that may arise include: pericarditis, endocarditis, left ventricular failure, valvulitis and fibrosis. Many people with RA do not experience the same chest pain that others feel when they have angina or myocardial infarction. To reduce cardiovascular risk, it is crucial to maintain optimal control of the inflammation caused by RA (which may be involved in causing the cardiovascular risk), and to use exercise and medications appropriately to reduce other cardiovascular risk factors such as blood lipids and blood pressure. Doctors who treat people with RA should be sensitive to cardiovascular risk when prescribing anti-inflammatory medications, and may want to consider prescribing routine use of low doses of aspirin if the gastrointestinal effects are tolerable.
Anemia is by far the most common abnormality of the blood cells which can be caused by a variety of mechanisms. The chronic inflammation caused by RA leads to raised hepcidin levels, leading to anemia of chronic disease where iron is poorly absorbed and also sequestered into macrophages. The red cells are of normal size and color (normocytic and normochromic). A low white blood cell count usually only occurs in people with Felty's syndrome with an enlarged liver and spleen. The mechanism of neutropenia is complex. An increased platelet count occurs when inflammation is uncontrolled.[ citation needed ]
Renal amyloidosis can occur as a consequence of untreated chronic inflammation. [ citation needed ]Treatment with penicillamine and gold salts are recognized causes of membranous nephropathy.
The eye can be directly affected in the form of episcleritis [ citation needed ]or scleritis, which when severe can very rarely progress to perforating scleromalacia. Rather more common is the indirect effect of keratoconjunctivitis sicca, which is a dryness of eyes and mouth caused by lymphocyte infiltration of lacrimal and salivary glands. When severe, dryness of the cornea can lead to keratitis and loss of vision as well as being painful. Preventive treatment of severe dryness with measures such as nasolacrimal duct blockage is important.
Liver problems in people with rheumatoid arthritis may be due to the underlying disease process or as a result of the medications used to treat the disease.A coexisting autoimmune liver disease, such as primary biliary cirrhosis or autoimmune hepatitis may also cause problems.
Peripheral neuropathy and mononeuritis multiplex may occur. The most common problem is carpal tunnel syndrome caused by compression of the median nerve by swelling around the wrist. Rheumatoid disease of the spine can lead to myelopathy. Atlanto-axial subluxation can occur, owing to erosion of the odontoid process and/or transverse ligaments in the cervical spine's connection to the skull. Such an erosion (>3mm) can give rise to vertebrae slipping over one another and compressing the spinal cord. Clumsiness is initially experienced, but without due care, this can progress to quadriplegia or even death.
Constitutional symptoms including fatigue, low grade fever, malaise, morning stiffness, loss of appetite and loss of weight are common systemic manifestations seen in people with active RA.
Local osteoporosis occurs in RA around inflamed joints. It is postulated to be partially caused by inflammatory cytokines. More general osteoporosis is probably contributed to by immobility, systemic cytokine effects, local cytokine release in bone marrow and corticosteroid therapy.
The incidence of lymphoma is increased, although it is uncommon and associated with the chronic inflammation, not the treatment of RA.The risk of non-melanoma skin cancer is increased in people with RA compared to the general population, an association possibly due to the use of immunosuppression agents for treating RA.
Periodontitis and tooth loss are common in people with rheumatoid arthritis.
RA is a systemic (whole body) autoimmune disease. Some genetic and environmental factors affect the risk for RA.
A family history of RA increases the risk around three to five times; as of 2016, it was estimated that genetics may account for between 40 and 65% of cases of seropositive RA, but only around 20% for seronegative RA.RA is strongly associated with genes of the inherited tissue type major histocompatibility complex (MHC) antigen. HLA-DR4 is the major genetic factor implicated – the relative importance varies across ethnic groups.
Genome-wide association studies examining single-nucleotide polymorphisms have found around one hundred alleles associated with RA risk.Risk alleles within the HLA (particularly HLA-DRB1) genes harbor more risk than other loci. The HLA encodes proteins which controls recognition of self versus nonself molecules. Other risk loci include genes affecting co-stimulatory immune pathways, for example CD28 and CD40, cytokine signaling, lymphocyte receptor activation threshold (e.g., PTPN22), and innate immune activation appear to have less influence than HLA mutations.
There are established epigenetic and environmental risk factors for RA.Smoking is an established risk factor for RA in Caucasian populations, increasing the risk three times compared to non-smokers, particularly in men, heavy smokers, and those who are rheumatoid factor positive. Modest alcohol consumption may be protective.
Silica exposure has been linked to RA.
No infectious agent has been consistently linked with RA and there is no evidence of disease clustering to indicate its infectious cause,but periodontal disease has been consistently associated with RA.
The many negative findings suggest that either the trigger varies, or that it might, in fact, be a chance event inherent with the immune response.
RA primarily starts as a state of persistent cellular activation leading to autoimmunity and immune complexes in joints and other organs where it manifests.[ citation needed ] The clinical manifestations of disease are primarily inflammation of the synovial membrane and joint damage, and the fibroblast-like synoviocytes play a key role in these pathogenic processes. Three phases of progression of RA are an initiation phase (due to non-specific inflammation), an amplification phase (due to T cell activation), and chronic inflammatory phase, with tissue injury resulting from the cytokines, IL–1, TNF-alpha, and IL–6.
Factors allowing an abnormal immune response, once initiated, become permanent and chronic. These factors are genetic disorders which change regulation of the adaptive immune response.Genetic factors interact with environmental risk factors for RA, with cigarette smoking as the most clearly defined risk factor.
Other environmental and hormonal factors may explain higher risks for women, including onset after childbirth and hormonal medications. A possibility for increased susceptibility is that negative feedback mechanisms – which normally maintain tolerance – are overtaken by positive feedback mechanisms for certain antigens, such as IgG Fc bound by rheumatoid factor and citrullinated fibrinogen bound by antibodies to citrullinated peptides (ACPA - Anti–citrullinated protein antibody). A debate on the relative roles of B-cell produced immune complexes and T cell products in inflammation in RA has continued for 30 years, but neither cell is necessary at the site of inflammation, only autoantibodies to IgGFc, known as rheumatoid factors and ACPA, with ACPA having an 80% specificity for diagnosing RA. As with other autoimmune diseases, people with RA have abnormally glycosylated antibodies, which are believed to promote joint inflammation. [ page needed ]
Once the generalized abnormal immune response has become established – which may take several years before any symptoms occur – plasma cells derived from B lymphocytes produce rheumatoid factors and ACPA of the IgG and IgM classes in large quantities. These activate macrophages through Fc receptor and complement binding, which is part of the intense inflammation in RA. Binding of an autoreactive antibody to the Fc receptors is mediated through the antibody's N-glycans, which are altered to promote inflammation in people with RA. [ page needed ]
This contributes to local inflammation in a joint, specifically the synovium with edema, vasodilation and entry of activated T-cells, mainly CD4 in microscopically nodular aggregates and CD8 in microscopically diffuse infiltrates.[ citation needed ] Synovial macrophages and dendritic cells function as antigen-presenting cells by expressing MHC class II molecules, which establishes the immune reaction in the tissue.[ citation needed ]
The disease progresses by forming granulation tissue at the edges of the synovial lining, pannus with extensive angiogenesis and enzymes causing tissue damage.The fibroblast-like synoviocytes have a prominent role in these pathogenic processes. The synovium thickens, cartilage and underlying bone disintegrate, and the joint deteriorates, with raised calprotectin levels serving as a biomarker of these events.
Cytokines and chemokines attract and accumulate immune cells, i.e. activated T- and B cells, monocytes and macrophages from activated fibroblast-like synoviocytes, in the joint space. By signalling through RANKL and RANK, they eventually trigger osteoclast production, which degrades bone tissue. [ page needed ] The fibroblast-like synoviocytes that are present in the synovium during rheumatoid arthritis display altered phenotype compared to the cells present in normal tissues. The aggressive phenotype of fibroblast-like synoviocytes in rheumatoid arthritis and the effect these cells have on the microenvironment of the joint can be summarized into hallmarks that distinguish them from healthy fibroblast-like synoviocytes. These hallmark features of fibroblast-like synoviocytes in rheumatoid arthritis are divided into 7 cell-intrinsic hallmarks and 4 cell-extrinsic hallmarks. The cell-intrinsic hallmarks are: reduced apoptosis, impaired contact inhibition, increased migratory invasive potential, changed epigenetic landscape, temporal and spatial heterogeneity, genomic instability and mutations, and reprogrammed cellular metabolism. The cell-extrinsic hallmarks of FLS in RA are: promotes osteoclastogenesis and bone erosion, contributes to cartilage degradation, induces synovial angiogenesis, and recruits and stimulates immune cells.
X-rays of the hands and feet are generally performed when many joints affected. In RA, there may be no changes in the early stages of the disease or the x-ray may show osteopenia near the joint, soft tissue swelling, and a smaller than normal joint space. As the disease advances, there may be bony erosions and subluxation. Other medical imaging techniques such as magnetic resonance imaging (MRI) and ultrasound are also used in RA.
Technical advances in ultrasonography like high-frequency transducers (10 MHz or higher) have improved the spatial resolution of ultrasound images depicting 20% more erosions than conventional radiography. Color Doppler and power Doppler ultrasound are useful in assessing the degree of synovial inflammation as they can show vascular signals of active synovitis. This is important, since in the early stages of RA, the synovium is primarily affected, and synovitis seems to be the best predictive marker of future joint damage.
When RA is clinically suspected, a physician may test for rheumatoid factor (RF) and anti-citrullinated protein antibodies (ACPAs measured as anti-CCP antibodies). [ page needed ] It is positive in 75–85%, but a negative RF or CCP antibody does not rule out RA, rather, the arthritis is called seronegative , which is in about 15–25% of people with RA. During the first year of illness, rheumatoid factor is more likely to be negative with some individuals becoming seropositive over time. RF is a non-specific antibody and seen in about 10% of healthy people, in many other chronic infections like hepatitis C, and chronic autoimmune diseases such as Sjögren's syndrome and systemic lupus erythematosus. Therefore, the test is not specific for RA.
Hence, new serological tests check for anti-citrullinated protein antibodies ACPAs. These tests are again positive in 61–75% of all RA cases, but with a specificity of around 95%.As with RF, ACPAs are many times present before symptoms have started.
The by far most common clinical test for ACPAs is the anti-cyclic citrullinated peptide (anti CCP) ELISA. In 2008 a serological point-of-care test for the early detection of RA combined the detection of RF and anti-MCV with a sensitivity of 72% and specificity of 99.7%. [ better source needed ]
Other blood tests are usually done to differentiate from other causes of arthritis, like the erythrocyte sedimentation rate (ESR), C-reactive protein, full blood count, kidney function, liver enzymes and other immunological tests (e.g., antinuclear antibody/ANA) are all performed at this stage. Elevated ferritin levels can reveal hemochromatosis, a mimic of RA, or be a sign of Still's disease, a seronegative, usually juvenile, variant of rheumatoid arthritis.[ citation needed ]
In 2010, the 2010 ACR / EULAR Rheumatoid Arthritis Classification Criteria were introduced.
The new criterion is not a diagnostic criterion but a classification criterion to identify disease with a high likelihood of developing a chronic form.However a score of 6 or greater unequivocally classifies a person with a diagnosis of rheumatoid arthritis.
These new classification criteria overruled the "old" ACR criteria of 1987 and are adapted for early RA diagnosis. The "new" classification criteria, jointly published by the American College of Rheumatology (ACR) and the European League Against Rheumatism (EULAR) establish a point value between 0 and 10. Four areas are covered in the diagnosis:
The new criteria accommodate to the growing understanding of RA and the improvements in diagnosing RA and disease treatment. In the "new" criteria serology and autoimmune diagnostics carries major weight, as ACPA detection is appropriate to diagnose the disease in an early state, before joints destructions occur. Destruction of the joints viewed in radiological images was a significant point of the ACR criteria from 1987.This criterion no longer is regarded to be relevant, as this is just the type of damage that treatment is meant to avoid.
|Type||WBC per mm3||% neutrophils||Viscosity||Appearance|
|Septic arthritis||>50,000||>75||Low||Cloudy yellow|
|Inflammatory = gout, rheumatoid arthritis, rheumatic fever|
Several other medical conditions can resemble RA, and need to be distinguished from it at the time of diagnosis:
Rarer causes which usually behave differently but may cause joint pains:
Sometimes arthritis is in an undifferentiated stage (i.e. none of the above criteria is positive), even if synovitis is witnessed and assessed with ultrasound imaging.
Many tools can be used to monitor remission in rheumatoid arthritis.
From this, the disease activity of the affected person can be classified as follows:
|DAS28 decrease from initial value|
|> 1.2||> 0.6 but ≤ 1.2||≤ 0.6|
|≤ 3.2||Inactive||Good improvement||Moderate improvement||No improvement|
|> 3.2 but ≤ 5.1||Moderate||Moderate improvement||Moderate improvement||No improvement|
|> 5.1||Very active||Moderate improvement||No improvement||No improvement|
It is not always a reliable indicator of treatment effect.One major limitation is that low-grade synovitis may be missed.
There is no known prevention for the condition other than the reduction of risk factors.
There is no cure for RA, but treatments can improve symptoms and slow the progress of the disease. Disease-modifying treatment has the best results when it is started early and aggressively.The results of a recent systematic review found that combination therapy with tumor necrosis factor (TNF) and non-TNF biologics plus methotrexate (MTX) resulted in improved disease control, Disease Activity Score (DAS)-defined remission, and functional capacity compared with a single treatment of either methotrexate or a biologic alone.
The goals of treatment are to minimize symptoms such as pain and swelling, to prevent bone deformity (for example, bone erosions visible in X-rays), and to maintain day-to-day functioning.This is primarily addressed with disease-modifying antirheumatic drugs (DMARDs); dosed physical activity; analgesics and physical therapy may be used to help manage pain. RA should generally be treated with at least one specific anti-rheumatic medication. The use of benzodiazepines (such as diazepam) to treat the pain is not recommended as it does not appear to help and is associated with risks.
Regular exercise is recommended as both safe and useful to maintain muscles strength and overall physical function.Physical activity is beneficial for people with rheumatoid arthritis who experience fatigue, although there was little to no evidence to suggest that exercise may have an impact on physical function in the long term, a study found that carefully dosed exercise has shown significant improvements in patients with RA. Moderate effects have been found for aerobic exercises and resistance training on cardiovascular fitness and muscle strength in RA. Furthermore, physical activity had no detrimental side effects like increased disease activity in any exercise dimension. It is uncertain if eating or avoiding specific foods or other specific dietary measures help improve symptoms. Occupational therapy has a positive role to play in improving functional ability in people with rheumatoid arthritis. Weak evidence supports the use of wax baths (thermotherapy) to treat arthritis in the hands.
Educational approaches that inform people about tools and strategies available to help them cope with rheumatoid arthritis may improve a person's psychological status and level of depression in the shorter-term.The use of extra-depth shoes and molded insoles may reduce pain during weight-bearing activities such as walking. Insoles may also prevent the progression of bunions.
Disease-modifying antirheumatic drugs (DMARDs) are the primary treatment for RA.They are a diverse collection of drugs, grouped by use and convention. They have been found to improve symptoms, decrease joint damage, and improve overall functional abilities. DMARDs should be started early in the disease as they result in disease remission in approximately half of people and improved outcomes overall.
The following drugs are considered as DMARDs: methotrexate, hydroxychloroquine, sulfasalazine, leflunomide, TNF-alpha inhibitors (certolizumab, infliximab and etanercept), abatacept, and anakinra. Rituximab and tocilizumab are monoclonal antibodies and are also DMARDs.Use of tocilizumab is associated with a risk of increased cholesterol levels.
Hydroxychloroquine, apart from its low toxicity profile, is considered effective in the moderate RA treatment.
The most commonly used agent is methotrexate with other frequently used agents including sulfasalazine and leflunomide.Leflunomide is effective when used from 6–12 months, with similar effectiveness to methotrexate when used for 2 years. Sulfasalazine also appears to be most effective in the short-term treatment of rheumatoid arthritis. Sodium aurothiomalate (gold) and cyclosporin are less commonly used due to more common adverse effects. However, cyclosporin was found to be effective in the progressive RA when used up to one year. Agents may be used in combinations however, people may experience greater side effects. Methotrexate is the most important and useful DMARD and is usually the first treatment. A combined approach with methotrexate and biologics improves ACR50, HAQ scores and RA remission rates. Triple therapy consisting of methotrexate, sulfasalazine and hydroxychloroquine may also effectively control disease activity. Adverse effects should be monitored regularly with toxicity including gastrointestinal, hematologic, pulmonary, and hepatic. Side effects such as nausea, vomiting or abdominal pain can be reduced by taking folic acid.
A 2015 Cochrane review found rituximab with methotrexate to be effective in improving symptoms compared to methotrexate alone.Rituximab works by decreasing levels of B-cells (immune cell that is involved in inflammation). People taking rituximab had improved pain, function, reduced disease activity and reduced joint damage based on x-ray images. After 6 months, 21% more people had improvement in their symptoms using rituximab and methotrexate.
Biological agents should generally only be used if methotrexate and other conventional agents are not effective after a trial of three months.They are associated with a higher rate of serious infections as compared to other DMARDs. Biological DMARD agents used to treat rheumatoid arthritis include: tumor necrosis factor alpha (TNFα) blockers such as infliximab; interleukin 1 blockers such as anakinra, monoclonal antibodies against B cells such as rituximab, and tocilizumab T cell co-stimulation blocker such as abatacept. They are often used in combination with either methotrexate or leflunomide. Biologic monotherapy or tofacitinib with methotrexate may improve ACR50, RA remission rates and function. Abatacept should not be used at the same time as other biologics. In those who are well controlled (low disease activity) on TNF blockers, decreasing the dose does not appear to affect overall function. Discontinuation of TNF blockers (as opposed to gradually lowering the dose) by people with low disease activity may lead to increased disease activity and may affect remission, damage that is visible on an x-ray, and a person's function. People should be screened for latent tuberculosis before starting any TNF blockers therapy to avoid reactivation of tuberculosis.
TNF blockers and methotrexate appear to have similar effectiveness when used alone and better results are obtained when used together. Golimumab is effective when used with methotraxate.TNF blockers may have equivalent effectiveness with etanercept appearing to be the safest. Injecting etanercept, in addition to methotrexate twice a week may improve ACR50 and decrease radiographic progression for up to 3 years. Abatacept appears effective for RA with 20% more people improving with treatment than without but long term safety studies are yet unavailable. Adalimumab slows the time for the radiographic progression when used for 52 weeks. However, there is a lack of evidence to distinguish between the biologics available for RA. Issues with the biologics include their high cost and association with infections including tuberculosis. Use of biological agents may reduce fatigue. The mechanism of how biologics reduce fatigue is unclear.
Glucocorticoids can be used in the short term and at the lowest dose possible for flare-ups and while waiting for slow-onset drugs to take effect.Combination of glucocorticoids and conventional therapy has shown a decrease in rate of erosion of bones. Steroids may be injected into affected joints during the initial period of RA, prior to the use of DMARDs or oral steroids.
Non-NSAID drugs to relieve pain, like paracetamol may be used to help relieve the pain symptoms; they do not change the underlying disease.The use of paracetamol may be associated with the risk of developing ulcers.
NSAIDs reduce both pain and stiffness in those with RA but do not affect the underlying disease and appear to have no effect on people's long term disease course and thus are no longer first line agents.NSAIDs should be used with caution in those with gastrointestinal, cardiovascular, or kidney problems. Rofecoxib was withdrawn from the global market as its long-term use was associated to an increased risk of heart attacks and strokes. Use of methotrexate together with NSAIDs is safe, if adequate monitoring is done. COX-2 inhibitors, such as celecoxib, and NSAIDs are equally effective. A 2004 Cochrane review found that people preferred NSAIDs over paracetamol. However, it is yet to be clinically determined whether NSAIDs are more effective than paracetamol.
The neuromodulator agents topical capsaicin may be reasonable to use in an attempt to reduce pain.Nefopam by mouth and cannabis are not recommended as of 2012 as the risks of use appear to be greater than the benefits.
Limited evidence suggests the use of weak oral opioids but the adverse effects may outweigh the benefits.
Alternatively, physical therapy has been tested and shown as an effective aid in reducing pain in patients with RA. As most RA is detected early and treated aggressively, physical therapy plays more of a preventative and compensatory role, aiding in pain management alongside regular rheumatic therapy.
Especially for affected fingers, hands, and wrists, synovectomy may be needed to prevent pain or tendon rupture when drug treatment has failed. Severely affected joints may require joint replacement surgery, such as knee replacement. Postoperatively, physiotherapy is always necessary. 1080, 1103 There is insufficient evidence to support surgical treatment on arthritic shoulders.:
For people with RA, physiotherapy may be used together with medical management.This may include cold and heat application, electronic stimulation, and hydrotherapy. Although medications improve symptoms of RA, muscle function is not regained when disease activity is controlled.
Physiotherapy promotes physical activity. In RA, physical activity like exercise in the appropriate dosage (frequency, intensity, time, type, volume, progression) and physical activity promotion is effective in improving cardiovascular fitness, muscle strength, and maintaining a long term active lifestyle. In the short term, resistance exercises, with or without range of motion exercises, improve self-reported hand functions.Physical activity promotion according to the public health recommendations should be an integral part of standard care for people with RA and other arthritic diseases. Additionally, the combination of physical activities and cryotherapy show its efficacy on the disease activity and pain relief. The combination of aerobic activity and cryotherapy may be an innovative therapeutic strategy to improve the aerobic capacity in arthritis patients and consequently reduce their cardiovascular risk while minimizing pain and disease activity.
In general, there is not enough evidence to support any complementary health approaches for RA, with safety concerns for some of them. Some mind and body practices and dietary supplements may help people with symptoms and therefore may be beneficial additions to conventional treatments, but there is not enough evidence to draw conclusions.A systematic review of CAM modalities (excluding fish oil) found that " The available evidence does not support their current use in the management of RA.". Studies showing beneficial effects in RA on a wide variety of CAM modalities are often affected by publication bias and are generally not high quality evidence such as randomized controlled trials (RCTs).
A 2005 Cochrane review states that low level laser therapy can be tried to improve pain and morning stiffness due to rheumatoid arthritis as there are few side-effects.
There is limited evidence that Tai Chi might improve the range of motion of a joint in persons with rheumatoid arthritis.The evidence for acupuncture is inconclusive with it appearing to be equivalent to sham acupuncture.
A Cochrane review in 2002 showed some benefits of the electrical stimulation as a rehabilitation intervention to improve the power of the hand grip and help to resist fatigue.D‐penicillamine may provide similar benefits as DMARDs but it is also highly toxic. Low-quality evidence suggests the use of therapeutic ultrasound on arthritic hands. Potential benefits include increased grip strength, reduced morning stiffness and number of swollen joints. There is tentative evidence of benefit of transcutaneous electrical nerve stimulation (TENS) in RA. Acupuncture‐like TENS (AL-TENS) may decrease pain intensity and improve muscle power scores.
Low-quality evidence suggests people with active RA may benefit from assistive technology.This may include less discomfort and difficulty such as when using an eye drop device. Balance training is of unclear benefits.
Gamma-linolenic acid, an omega-6 fatty acid, may reduce pain, tender joint count and stiffness, and is generally safe.For omega-3 polyunsaturated fatty acids (found in fish oil, flax oil and hemp oil), a meta-analysis reported a favorable effect on pain, although confidence in the effect was considered moderate. The same review reported less inflammation but no difference in joint function. A review examined the effect of marine oil omega-3 fatty acids on pro-inflammatory eicosanoid concentrations; leukotriene4 (LTB4) was lowered in people with rheumatoid arthritis but not in those with non-autoimmune chronic diseases. (LTB4) increases vascular permeabiltity and stimulates other inflammatory substances. A third meta-analysis looked at fish consumption. The result was a weak, non-statistically significant inverse association between fish consumption and RA. A fourth review limited inclusion to trials in which people eat ≥2.7 g/day for more than three months. Use of pain relief medication was decreased, but improvements in tender or swollen joints, morning stiffness and physical function were not changed. Collectively, the current evidence is not strong enough to determine that supplementation with omega-3 fatty acids or regular consumption of fish are effective treatments for rheumatoid arthritis.
The American College of Rheumatology states that no herbal medicines have health claims supported by high-quality evidence and thus they do not recommend their use.There is no scientific basis to suggest that herbal supplements advertised as "natural" are safer for use than conventional medications as both are chemicals. Herbal medications, although labelled "natural", may be toxic or fatal if consumed. Due to the false belief that herbal supplements are always safe, there is sometimes a hesitancy to report their use which may increase the risk of adverse reaction.
The following are under investigation for treatments for RA, based on preliminary promising results (not recommended for clinical use yet): boswellic acid,curcumin, devil's claw, Euonymus alatus, and thunder god vine (Tripterygium wilfordii). NCCIH has noted that, "In particular, the herb thunder god vine (Tripterygium wilfordii) can have serious side effects."
There is conflicting evidence on the role of erythropoiesis-stimulating agents for treatment of anemia in persons with rheumatoid arthritis.
More than 75% of women with rheumatoid arthritis have symptoms improve during pregnancy but might have symptoms worsen after delivery.Methotrexate and leflunomide are teratogenic (harmful to foetus) and not used in pregnancy. It is recommended women of childbearing age should use contraceptives to avoid pregnancy and to discontinue its use if pregnancy is planned. Low dose of prednisolone, hydroxychloroquine and sulfasalazine are considered safe in pregnant persons with rheumatoid arthritis. Prednisolone should be used with caution as the side effects include infections and fractures.
People with RA have an increased risk of infections and mortality and recommended vaccinations can reduce these risks.The inactivated influenza vaccine should be received annually. The pneumococcal vaccine should be administered twice for people under the age 65 and once for those over 65. Lastly, the live-attenuated zoster vaccine should be administered once after the age 60, but is not recommended in people on a tumor necrosis factor alpha blocker.
The course of the disease varies greatly. Some people have mild short-term symptoms, but in most the disease is progressive for life. Around 25% will have subcutaneous nodules (known as rheumatoid nodules);this is associated with a poor prognosis.
Poor prognostic factors include,
RA reduces lifespan on average from three to twelve years.Young age at onset, long disease duration, the presence of other health problems, and characteristics of severe RA—such as poor functional ability or overall health status, a lot of joint damage on x-rays, the need for hospitalisation or involvement of organs other than the joints—have been shown to associate with higher mortality. Positive responses to treatment may indicate a better prognosis. A 2005 study by the Mayo Clinic noted that RA sufferers suffer a doubled risk of heart disease, independent of other risk factors such as diabetes, excessive alcohol use, and elevated cholesterol, blood pressure and body mass index. The mechanism by which RA causes this increased risk remains unknown; the presence of chronic inflammation has been proposed as a contributing factor. It is possible that the use of new biologic drug therapies extend the lifespan of people with RA and reduce the risk and progression of atherosclerosis. This is based on cohort and registry studies, and still remains hypothetical. It is still uncertain whether biologics improve vascular function in RA or not. There was an increase in total cholesterol and HDLc levels and no improvement of the atherogenic index.
RA affects between 0.5 and 1% of adults in the developed world with between 5 and 50 per 100,000 people newly developing the condition each year.In 2010 it resulted in about 49,000 deaths globally.
Onset is uncommon under the age of 15 and from then on the incidence rises with age until the age of 80. Women are affected three to five times as often as men.
The age at which the disease most commonly starts is in women between 40 and 50 years of age, and for men somewhat later.RA is a chronic disease, and although rarely, a spontaneous remission may occur, the natural course is almost invariably one of the persistent symptoms, waxing and waning in intensity, and a progressive deterioration of joint structures leading to deformations and disability.
There is an association between periodontitis and rheumatoid arthritis (RA), hypothesised to lead to enhanced generation of RA-related autoantibodies. Oral bacteria that invade the blood may also contribute to chronic inflammatory responses and generation of autoantibodies.
The first known traces of arthritis date back at least as far as 4500 BC. A text dated 123 AD first describes symptoms very similar to RA.[ citation needed ] It was noted in skeletal remains of Native Americans found in Tennessee. In Europe, the disease is vanishingly rare before the 17th century. The first recognized description of RA in modern medicine was in 1800 by the French physician Dr Augustin Jacob Landré-Beauvais (1772–1840) who was based in the famed Salpêtrière Hospital in Paris. The name "rheumatoid arthritis" itself was coined in 1859 by British rheumatologist Dr Alfred Baring Garrod.
The art of Peter Paul Rubens may possibly depict the effects of RA. In his later paintings, his rendered hands show, in the opinion of some physicians, increasing deformity consistent with the symptoms of the disease.RA appears to some to have been depicted in 16th-century paintings. However, it is generally recognized in art historical circles that the painting of hands in the 16th and 17th century followed certain stylized conventions, most clearly seen in the Mannerist movement. It was conventional, for instance, to show the upheld right hand of Christ in what now appears a deformed posture. These conventions are easily misinterpreted as portrayals of disease.
Historic (though not necessarily effective) treatments for RA have also included: rest, ice, compression and elevation, apple diet, nutmeg, some light exercise every now and then, nettles, bee venom, copper bracelets, rhubarb diet, extractions of teeth, fasting, honey, vitamins, insulin, magnets, and electroconvulsive therapy (ECT).
Rheumatoid arthritis is derived from the Greek word ῥεύμα-rheuma (nom.), ῥεύματος-rheumatos (gen.) ("flow, current"). The suffix -oid ("resembling") gives the translation as joint inflammation that resembles rheumatic fever . Rhuma which means watery discharge might refer to the fact that the joints are swollen or that the disease may be made worse by wet weather.
Meta-analysis found an association between periodontal disease and RA, but the mechanism of this association remains unclear.Two bacterial species associated with periodontitis are implicated as mediators of protein citrullination in the gums of people with RA.
Vitamin D deficiency is more common in people with rheumatoid arthritis than in the general population.However, whether vitamin D deficiency is a cause or a consequence of the disease remains unclear. One meta-analysis found that vitamin D levels are low in people with rheumatoid arthritis and that vitamin D status correlates inversely with prevalence of rheumatoid arthritis, suggesting that vitamin D deficiency is associated with susceptibility to rheumatoid arthritis.
The fibroblast-like synoviocytes have a prominent role in the pathogenic processes of the rheumatic joints, and therapies that target these cells are emerging as promising therapeutic tools, raising hope for future applications in rheumatoid arthritis.
Arthritis is a term often used to mean any disorder that affects joints. Symptoms generally include joint pain and stiffness. Other symptoms may include redness, warmth, swelling, and decreased range of motion of the affected joints. In some types of arthritis, other organs are also affected. Onset can be gradual or sudden.
Nonsteroidal anti-inflammatory drugs (NSAIDs) are members of a drug class that reduces pain, decreases fever, prevents blood clots, and in higher doses, decreases inflammation. Side effects depend on the specific drug but largely include an increased risk of gastrointestinal ulcers and bleeds, heart attack, and kidney disease.
Gout is a form of inflammatory arthritis characterized by recurrent attacks of a red, tender, hot, and swollen joint. Pain typically comes on rapidly, reaching maximal intensity in less than 12 hours. The joint at the base of the big toe is affected in about half of cases. It may also result in tophi, kidney stones, or kidney damage.
Psoriasis is a long-lasting, noncontagious autoimmune disease characterized by raised areas of abnormal skin. These areas are red, or purple on some people with darker skin, dry, itchy, and scaly. Psoriasis varies in severity from small, localized patches to complete body coverage. Injury to the skin can trigger psoriatic skin changes at that spot, which is known as the Koebner phenomenon.
Rheumatology is a branch of medicine devoted to the diagnosis and therapy of rheumatic diseases. Physicians who have undergone formal training in rheumatology are called rheumatologists. Rheumatologists deal mainly with immune-mediated disorders of the musculoskeletal system, soft tissues, autoimmune diseases, vasculitides, and inherited connective tissue disorders.
Tendinopathy, also known as tendinitis or tendonitis, is a type of tendon disorder that results in pain, swelling, and impaired function. The pain is typically worse with movement. It most commonly occurs around the shoulder, elbow, wrist, hip, knee, or ankle.
Methotrexate (MTX), formerly known as amethopterin, is a chemotherapy agent and immune-system suppressant. It is used to treat cancer, autoimmune diseases, and ectopic pregnancy and for medical abortions. Types of cancers it is used for include breast cancer, leukemia, lung cancer, lymphoma, gestational trophoblastic disease, and osteosarcoma. Types of autoimmune diseases it is used for include psoriasis, rheumatoid arthritis, and Crohn's disease. It can be given by mouth or by injection.
Fibromyalgia (FM) is a medical condition characterized by chronic widespread pain and a heightened pain response to pressure. Other symptoms include tiredness to a degree that normal activities are affected, sleep problems and troubles with memory. Some people also report restless legs syndrome, bowel or bladder problems, numbness and tingling and sensitivity to noise, lights or temperature. Fibromyalgia is frequently associated with depression, anxiety and posttraumatic stress disorder.
Ankylosing spondylitis (AS) is a type of arthritis in which there is a long-term inflammation of the joints of the spine. Typically the joints where the spine joins the pelvis are also affected. Occasionally other joints such as the shoulders or hips are involved. Eye and bowel problems may also occur. Back pain is a characteristic symptom of AS, and it often comes and goes. Stiffness of the affected joints generally worsens over time.
Osteoarthritis (OA) is a type of degenerative joint disease that results from breakdown of joint cartilage and underlying bone. The most common symptoms are joint pain and stiffness. Usually the symptoms progress slowly over years. Initially they may occur only after exercise but can become constant over time. Other symptoms may include joint swelling, decreased range of motion, and, when the back is affected, weakness or numbness of the arms and legs. The most commonly involved joints are the two near the ends of the fingers and the joint at the base of the thumbs; the knee and hip joints; and the joints of the neck and lower back. Joints on one side of the body are often more affected than those on the other. The symptoms can interfere with work and normal daily activities. Unlike some other types of arthritis, only the joints, not internal organs, are affected.
Psoriatic arthritis is a long-term inflammatory arthritis that occurs in people affected by the autoimmune disease psoriasis. The classic feature of psoriatic arthritis is swelling of entire fingers and toes with a sausage-like appearance. This often happens in association with changes to the nails such as small depressions in the nail (pitting), thickening of the nails, and detachment of the nail from the nailbed. Skin changes consistent with psoriasis frequently occur before the onset of psoriatic arthritis but psoriatic arthritis can precede the rash in 15% of affected individuals. It is classified as a type of seronegative spondyloarthropathy.
Peripheral neuropathy, often shortened to neuropathy, is a general term describing disease affecting the peripheral nerves, meaning nerves beyond the brain and spinal cord. Damage to peripheral nerves may impair sensation, movement, gland or organ function depending on which nerves are affected; in other words, neuropathy affecting motor, sensory, or autonomic nerves result in different symptoms. More than one type of nerve may be affected simultaneously. Peripheral neuropathy may be acute or chronic, and may be reversible or permanent.
Juvenile idiopathic arthritis (JIA), is the most common, chronic rheumatic disease of childhood, affecting approximately one per 1,000 children. Juvenile, in this context, refers to disease onset before 16 years of age, while idiopathic refers to a condition with no defined cause, and arthritis is inflammation within the joint.
Anakinra, sold under the brand name Kineret, is a biopharmaceutical medication used to treat rheumatoid arthritis, cryopyrin-associated periodic syndromes, familial Mediterranean fever, and Still's disease. It is a recombinant and slightly modified version of the human interleukin 1 receptor antagonist protein. It is marketed by Swedish Orphan Biovitrum. Anakinra is administered by subcutaneous injection.
Balneotherapy is a method of treating diseases by bathing, a traditional medicine technique usually practiced at spas. While it is considered distinct from hydrotherapy, there are some overlaps in practice and in underlying principles. Balneotherapy may involve hot or cold water, massage through moving water, relaxation, or stimulation. Many mineral waters at spas are rich in particular minerals such as silica, sulfur, selenium, and radium. Medicinal clays are also widely used, a practice known as 'fangotherapy'.
Golimumab is a human monoclonal antibody which is used as an immunosuppressive medication and sold under the brand name Simponi. Golimumab targets tumor necrosis factor alpha (TNF-alpha), a pro-inflammatory molecule and hence is a TNF inhibitor. Profound reduction in C-reactive protein (CRP) levels, interleukin (IL)-6, intercellaular adhesion molecules (ICAM)-1, matrix metalloproteinase (MMP)-3, and vascular endothelial growth factor (VEGF) demonstrates golimumab as an effective modulator of inflammatory markers and bone metabolism.
Childhood arthritis, is any form of chronic arthritis or chronic arthritis-related conditions which affects individuals under the age of 16. It is an autoimmune disease.
Neck pain, also known as cervicalgia, is a common problem, with two-thirds of the population having neck pain at some point in their lives.
A rheumatoid nodule is a lump of tissue, or an area of swelling, that appear on the exterior of the skin usually around the olecranon or the interphalangeal joints, but can appear in other areas. There are four different types of rheumatoid nodules: subcutaneous rheumatoid nodules, cardiac nodules, pulmonary nodules, and central nervous systems nodules. These nodules occur almost exclusively in association with rheumatoid arthritis. Very rarely do rheumatoid nodules occur as rheumatoid nodulosis in the absence of rheumatoid arthritis. Rheumatoid nodules can also appear in other areas of the body other than the skin. Less commonly they occur in the lining of the lung or other internal organs. The occurrence of nodules in the lung of miners exposed to silica dust was known as Caplan’s syndrome. Rarely, the nodules occur at diverse sites on body.
Axial spondyloarthritis is a chronic, autoinflammatory disease predominantly affecting the axial skeleton. The most known member of the axial spondyloarthritis disease family is ankylosing spondylitis. Axial spondyloarthritis is an umbrella term that was introduced in 2009 to characterize a diverse disease family that share clinical and genetic features, such as the involvement of the axial skeleton. The expression was introduced in order to unify (1) less severe forms of spondylitis, (2) the early phase of ankylosing spondylitis as well as (3) ankylosing spondylitis itself into one term.
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