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rheumatic fever
rheumatic fevern. An acute inflammatory disease occurring after a streptococcal infection such as strep throat, characterized by fever and joint pain and often resulting in permanent heart damage.rheumatic fever n (Pathology) a disease characterized by sore throat, fever, inflammation, and pain in the joints rheumat′ic fe′ver n. an acute complication of certain streptococcal infections, usu. affecting children, characterized by fever, arthritis, chorea, and heart disturbances. [1775–85] rheu·mat·ic fever (ro͞o-măt′ĭk) A disorder that usually follows infection by certain bacteria and has as symptoms inflammation of the joints, skin, and heart. It occurs mainly in children and can cause permanent damage to the heart valves.rheumatic feverA serious allergic reaction to bacterial infection, usually tonsilitis, with severe symptoms.ThesaurusNoun | 1. | rheumatic fever - a severe disease chiefly of children and characterized by painful inflammation of the joints and frequently damage to the heart valvesinfectious disease - a disease transmitted only by a specific kind of contactrheumatic aortitis - aortitis occurring in rheumatic fever | Translations
rheumatic fever
rheumatic fever (ro͞omăt`ĭk), systemic inflammatory disease, extremely variable in its manifestation, severity, duration, and aftereffects. It is frequently followed by serious heart disease, especially when there are repeated attacks. Rheumatic fever usually affects children. It is closely related to a preceding streptococcal infection (e.g., streptococcal tonsillitis or pharyngitis). Some of its symptoms are tenderness and inflammation about the joints, fever, jerky movements, nodules under the skin, and skin rash. If inflammation of the heart, or myocarditis, is mild, there is no permanent heart damage, but if the valves of the heart become inflamed, they may become scarred and deformed, permanently impairing their function. Such heart damage can sometimes be corrected by surgery. Treatment of rheumatic fever is with penicillin, salicylates, and steroids; extended rest is usually necessary. Rheumatic fever may be prevented by prompt treatment of all streptococcal infections. Cardiac damage may possibly be avoided if prophylactic measures are taken after a first attack of rheumatic fever, i.e., long-term maintenance doses of antibiotics, to discourage streptococcal infections and recurrences of rheumatic fever. Rheumatic fever has declined in incidence in the industrialized countries, but has increased in prevalence in the Third World. See also streptococcusstreptococcus , any of a group of gram-positive bacteria, genus Streptococcus, some of which cause disease. Streptococci are spherical and divide by fission, but they remain attached and so grow in beadlike chains. ..... Click the link for more information. . Rheumatic fever An illness that follows an upper respiratory infection with the group A streptococcus (Streptococcus pyogenes) and is characterized by inflammation of the joints (arthritis) and the heart (carditis). Arthritis typically involves multiple joints and may migrate from one joint to another. The carditis may involve the outer lining of the heart, the heart muscle itself, or the inner lining of the heart. A minority of affected individuals also develop a rash (erythema marginatum), nodules under the skin, or Sydenham's chorea (a neurologic disorder characterized by involuntary, uncoordinated movements of the legs, arms, and face). Damage to heart valves may be permanent and progressive, leading to severe disability or death from rheumatic heart disease years after the initial attack. The disease occurs an average of 19 days after the infection and is thought to be the result of an abnormal immunologic reaction to the group A streptococcus. Initial attacks of rheumatic fever generally occur among individuals aged 5 to 15. Those who have had one attack are highly susceptible to recurrences after future streptococcal infections. Initial attacks of rheumatic fever can be prevented by treatment of strep throat with penicillin for at least 10 days. Patients who have had an episode of rheumatic fever should continue taking antibiotics for many years to prevent group A streptococcal infections that may trigger a recurrence of rheumatic fever. See Streptococcus Rheumatic Fever (also called acute articular rheumatism), an infectious allergic disease characterized by widespread inflammation of connective tissue. In man. In man, rheumatic fever is localized chiefly in the cardiovascular system. The disease usually develops in children and adolescents between seven and 15 years of age. It generally develops in winter but is independent of climatic and geographic zones. Two factors are decisive: a preceding infection such as sore throat, pharyngitis, or scarlet fever, caused by group A beta-hemolytic streptococci, and a special predisposition in the form of hyperreaction to the infection. Rheumatic fever thus occurs in only 1–3 percent of persons who have been affected by sore throat. Streptococcal infection is the cause of rheumatic fever and of acute forms of the disease. Familial rheumatism may be caused by prolonged exposure to an intensive streptococcal environment and to such unfavorable living conditions as overcrowding and the use of common dishes and linens. There is also evidence for a hereditary polygenic predisposition to the disease. The most important factor in the pathogenesis of rheumatic fever is the reduction of immunity to streptococci. This impaired immunity is manifested by excess production of antibodies (circulating in the blood and bound to lymphocytes in the tissues) to the streptococci’s antigens. Autoantibodies are also produced to such tissues of the body as collagen. Since there is a structural similarity between the antigens of streptococci and of the heart, antistreptococcic antibodies may react with the autoantigens of cardiac tissue, for example, of the myocardium: these antibodies become lodged in the cardiac tissue and injure the heart. Other mechanisms occurring during the development of rheumatic fever are disturbance of the microcirculation with increased permeability of the capillary wall and the liberation of lysosomal enzymes from injured cells with resulting inflammation of vessels and connective tissue. The involvement of connective tissue and vascular walls typical of rheumatic fever occurs in phases. In the phase of mucoid swelling, the processes of disorganization affect the interstitial substance and collagen fibers and are completely reversible if treated promptly. The phase of fibrinoid changes is an indication of more extensive destruction of connective tissue and causes necrosis of the tissue. In the next phase, cellular reactions arise around foci of the disorganization of connective tissue and gradually produce rheumatic nodules specific to rheumatic fever, the Aschoff bodies. Finally, there is sclerosis, or cicatrization, resulting from regression of the rheumatic granulomas, a process that lasts three to four months. The onset of rheumatic fever is generally acute, with a general deterioration of health, fever rising to 38°-39°C, the sudden occurrence of joint pain, and swelling of the joints, which is usually temporary. If polyarthritis develops, there is often reddening and dysfunction of the joints owing to inflammation of the synovial membranes and periarticular tissues. As a rule, the large joints are affected: the knee, the talocrural, ulnar, and radiocarpal joints. Polyarthritis does not become chronic and disappears without a trace. Within a week to ten days, symptoms of cardiac involvement (rheumatic carditis) appear. These include pain, palpitation of the heart, arrhythmia, dyspnea upon slight physical exertion, and pathological changes revealed by direct, instrumental, and laboratory examination. Involvement of the nervous system is usually manifested in children by chorea, a disorder characterized by emotional instability, muscular hypotonia, and involuntary movements of the arms, trunk, and facial muscles. In adults, involvement of the nervous system is manifested by rheumatic encephalitis and meningitis. In rheumatic fever there is also involvement of vessels in different parts of the body (rheumatic vasculitis). Involvement of the skin takes the form of erythema annulare, erythema nodosum, and nodules. Also subject to involvement are the serous membranes, eyes, lungs, and kidneys. The erythrocyte sedimentation rate accelerates to 40–50 mm/hr, and the white blood cell count rises to 10,000–13,000 in 1 mm3. The content of such antistreptococcic antibodies as antistreptolysin, antistreptokinase, and antistreptococcic hyaluronidase increases, and C-reactive protein, hyperfibrinogenemia, and dysproteinemia may be detected. The course of rheumatic fever takes several forms. Complete recovery is the rule if the course is acute or subacute and therapy is initiated early. A latent and protracted course of rheumatic carditis may result in organic heart diseases. Rheumatic fever is more severe in children than in adults: inflammatory changes are more pronounced, and the development of heart diseases are more common. Rheumatic fever is treated by bed rest and a diet low in salt and fluids. The diet should contain sufficient proteins, fruits, vegetables, and such potassium-rich foods as dried apricots, potatoes, and buckwheat groats. Antibiotics and corticosteroids are used in combination with aspirin, Aminopyrine, butadion, and indomethacin or other antirheumatic agents. Cardiotherapy is used when needed. Foci of chronic streptococcal infection are removed by means of tonsillectomy, the filling of carious teeth, and the treatment of sinusitis and pharyngitis. Rehabilitation in a local rheumatologic sanatorium is desirable. Children with rheumatic fever should stay in a sanatorium for three to six months, until the disease is completely inactive. After adult patients have been discharged from the hospital or children from the sanatorium, they should be registered in a dispensary program in a cardiologic and rheumatologic center for three to five years or more. The length of this period depends on whether there is recurrence of the disease and whether foci of chronic infection exist. During this time, patients are given maintenance anti-inflammatory treatment throughout the year or in spring and fall. Bicillin is administered to prevent intensification of the disease. REFERENCESTalalaev, V. T. Ostryi revmatizm, 2nd ed. Moscow, 1932. Mikheev, V. V. Neirorevmatizm. Moscow, 1960. Ioffe, V. I. Immunologiia revmatizma. Leningrad, 1962. Liampert, I. M. Etiologiia, immunologiia i immunopatologiia revmatizma. Moscow, 1972. Nesterov, A. I. Revmatizm. Moscow, 1973. Aschoff, L. “Zur Myocarditisfrage.” In Verhandlungen der deutschen pathologischen Gesellschaft, 1904, book 2. Jena, 1905. Hench, P. In the collection The Rheumatic Diseases. Philadelphia-London, 1952. Kaplan, M. N. “Immunologic Relation of Streptococcal and Tissue Antigens.” Journal of Immunology, 1963, vol. 90, no. 4.V. A. NASONOVA In animals. Among animals, rheumatic fever affects mainly horses, cattle, asses, swine, and dogs. Chiefly involved are the muscles and joints, with accompanying swelling, tenderness, lameness, fever, and accelerated pulse and respiration rates. The affected animals are kept in a warm dry place, massaged with mildly stimulating and pain-relieving ointments, and wrapped up warmly. They also receive diathermy, ionotherapy, ultrahigh-frequency treatment of the affected joints and muscles, and such drugs as salicylates. REFERENCEChastnaia patologiia i terapiia domashnikh zhivotnykh, vol. 2, book 4. Moscow, 1964. (Translated from German.)N. M. PREOBRAZHENSKII rheumatic fever[rü′mad·ik ′fē·vər] (medicine) A febrile disease occurring in childhood as a delayed sequel of infection by Streptococcus hemolyticus, group A; characterized by arthritis, carditis, nosebleeds, and chorea. rheumatic fever a disease characterized by sore throat, fever, inflammation, and pain in the joints rheumatic fever
Rheumatic Fever DefinitionRheumatic fever (RF) is an illness which arises as a complication of untreated or inadequately treated strep throat infection. Rheumatic fever can seriously damage the valves of the heart.DescriptionThroat infection with a member of the Group A streptococcus (strep) bacteria is a common problem among school-aged children. It is easily treated with a ten-day course of antibiotics by mouth. However, when such a throat infection occurs without symptoms, or when a course of medication is not taken for the full ten days, there is a 3% chance of that person developing rheumatic fever. Other types of strep infections (such as of the skin) do not put the patient at risk for RF.Children between the ages of five and fifteen are most susceptible to strep throat, and therefore most susceptible to rheumatic fever. Other risk factors include poverty, overcrowding (as in military camps), and lack of access to good medical care. Just as strep throat occurs most frequently in fall, winter, and early spring, so does rheumatic fever.Causes and symptomsTwo different theories exist as to how a bacterial throat infection can develop into the disease called rheumatic fever. One theory, less supported by research evidence, suggests that the bacteria produce some kind of poisonous chemical (toxin). This toxin is sent into circulation throughout the bloodstream, thus affecting other systems of the body.Research seems to point to a different theory, however. This theory suggests that the disease is caused by the body's immune system acting inappropriately. The body produces immune cells (called antibodies), which are specifically designed to recognize and destroy invading agents; in this case, streptococcal bacteria. The antibodies are able to recognize the bacteria because the bacteria contain special markers called antigens. Due to a resemblance between Group A streptococcus bacteria's antigens and antigens present on the body's own cells, the antibodies mistakenly attack the body itself.It is interesting to note that members of certain families seem to have a greater tendency to develop rheumatic fever than do others. This could be related to the above theory, in that these families may have cell antigens which more closely resemble streptococcal antigens than do members of other families.In addition to fever, in about 75% of all cases of RF one of the first symptoms is arthritis. The joints (especially those of the ankles, knees, elbows, and wrists) become red, hot, swollen, shiny, and extraordinarily painful. Unlike many other forms of arthritis, the arthritis may not occur symmetrically (affecting a particular joint on both the right and left sides, simultaneously). The arthritis of RF rarely strikes the fingers, toes, or spine. The joints become so tender that even the touch of bedsheets or clothing is terribly painful.A peculiar type of involuntary movement, coupled with emotional instability, occurs in about 10% of all RF patients (the figure used to be about 50%). The patient begins experiencing a change in coordination, often first noted by changes in handwriting. The arms or legs may flail or jerk uncontrollably. The patient seems to develop a low threshold for anger and sadness. This feature of RF is called Sydenham's chorea or St. Vitus' Dance.A number of skin changes are common to RF. A rash called erythema marginatum develops (especially in those patients who will develop heart problems from their illness), composed of pink splotches, which may eventually spread into each other. It does not itch. Bumps the size of peas may occur under the skin. These are called subcutaneous nodules; they are hard to the touch, but not painful. These nodules most commonly occur over the knee and elbow joint, as well as over the spine.The most serious problem occurring in RF is called pancarditis ("pan" means total; "carditis" refers to inflammation of the heart). Pancarditis is an inflammation that affects all aspects of the heart, including the lining of the heart (endocardium), the sac containing the heart (pericardium), and the heart muscle itself (myocardium). About 40-80% of all RF patients develop pancarditis. This RF complication has the most serious, long-term effects. The valves within the heart (structures which allow the blood to flow only in the correct direction, and only at the correct time in the heart's pumping cycle) are frequently damaged during the course of pancarditis. This may result in blood which either leaks back in the wrong direction, or has a difficult time passing a stiff, poorly moving valve. Either way, damage to a valve can result in the heart having to work very hard in order to move the blood properly. The heart may not be able to "work around" the damaged valve, which may result in a consistently inadequate amount of blood entering the circulation.DiagnosisDiagnosis of RF is done by carefully examining the patient. A list of diagnostic criteria has been created. These "Jones Criteria" are divided into major and minor criteria. A patient can be diagnosed with RF if he or she has either two major criteria (conditions), or one major and two minor criteria. In either case, it must also be proved that the individual has had a previous infection with streptococcus.The major criteria include:- carditis
- arthritis
- chorea
- subcutaneous nodules
- erythema marginatum
The minor criteria include:- fever
- joint pain (without actual arthritis)
- evidence of electrical changes in the heart (determined by measuring electrical characteristics of the heart's functioning during a test called an electrocardiogram, or EKG)
- evidence (through a blood test) of the presence in the blood of certain proteins, which are produced early in an inflammatory/infectious disease.
Tests are also performed to provide evidence of recent infection with group A streptococcal bacteria. A swab of the throat can be taken, and smeared on a substance in a petri dish, to see if bacteria will multiply and grow over 24-72 hours. These bacteria can then be specially processed, and examined under a microscope, to identify streptococcal bacteria. Other tests can be performed to see if the patient is producing specific antibodies; that are only made in response to a recent strep infection.TreatmentA 10-day course of penicillin by mouth, or a single injection of penicillin G-is the first line of treatment for RF. Patients will need to remain on some regular dose of penicillin to prevent recurrence of RF. This can mean a small daily dose of penicillin by mouth, or an injection every three weeks. Some practitioners keep patients on this regimen for five years, or until they reach 18 years of age (whichever comes first). Other practitioners prefer to continue treating those patients who will be regularly exposed to streptococcal bacteria (teachers, medical workers), as well as those patients with known RF heart disease.Arthritis quickly improves when the patient is given a preparation containing aspirin, or some other anti-inflammatory agent (ibuprofen). Mild carditis will also improve with such anti-inflammatory agents, although more severe cases of carditis will require steroid medications. A number of medications are available to treat the involuntary movements of chorea, including diazepam for mild cases, and haloperidol for more severe cases.PrognosisThe long-term prognosis of an RF patient depends primarily on whether he or she develops carditis. This is the only manifestation of RF which can have permanent effects. Those patients with no or mild carditis have an excellent prognosis. Those with more severe carditis have a risk of heart failure, as well as a risk of future heart problems, which may lead to the need for valve replacement surgery.PreventionPrevention of the development of RF involves proper diagnosis of initial strep throat infections, and adequate treatment within 10 days with an appropriate antibiotic. Prevention of RF recurrence requires continued antibiotic treatment, perhaps for life. Prevention of complications of already-existing RF heart disease requires that the patient always take a special course of antibiotics when he or she undergoes any kind of procedure (even dental cleanings) that might allow bacteria to gain access to the bloodstream.ResourcesOrganizationsCenters for Disease Control and Prevention. 1600 Clifton Rd., NE, Atlanta, GA 30333. (800) 311-3435, (404) 639-3311. http://www.cdc.gov.Key termsAntibodies — Specialized cells of the immune system which can recognize organisms that invade the body (such as bacteria, viruses, and fungi). The antibodies are then able to set off a complex chain of events designed to kill these foreign invaders.Antigen — A special, identifying marker on the outside of cells.Arthritis — Inflammation of the joints.Autoimmune disorder — A disorder in which the body's antibodies mistake the body's own tissues for foreign invaders. The immune system therefore attacks and causes damage to these tissues.Chorea — Involuntary movements in which the arms or legs may jerk or flail uncontrollably.Immune system — The system of specialized organs, lymph nodes, and blood cells throughout the body, which work together to prevent foreign invaders (bacteria, viruses, fungi, etc.) from taking hold and growing.Inflammation — The body's response to tissue damage. Includes hotness, swelling, redness, and pain in the affected part.Pancarditis — Inflammation of the lining of the heart, the sac around the heart, and the muscle of the heart.rheumatic [roo-mat´ik] pertaining to or affected with rheumatism.rheumatic fever a disease associated with the presence of streptococci" >hemolytic streptococci in the body. It is called rheumatic fever because two common symptoms are fever and pain in the joints similar to that of rheumatism. It is relatively common, particularly in children between 5 and 15 years old; young adults in the early twenties are also susceptible.Causes. Rheumatic fever is a delayed sequela of an upper respiratory infection caused by the Group A hemolytic streptococcus that causes such common childhood illnesses as scarlet fever, tonsillitis, streptococcal sore throat (“strep throat”), and ear infections. It is only one of several complications that can result from a streptococcal infection.
The connection between rheumatic fever and a previous streptococcal infection has been proved only indirectly. In almost all cases of rheumatic fever there is evidence of previous streptococcal infection, and when the infection is treated promptly, the likelihood of rheumatic fever decreases sharply. There is evidence that the symptoms of rheumatic fever may result from an antigen-antibody reaction to one or more of the products of the hemolytic streptococcus, but the exact way this happens is not known. Rheumatic fever has been classified as an autoimmune disease. It tends to run in families, indicating a possible hereditary predisposition. Economic and environmental conditions such as a damp, cold climate and poor health habits may also be contributing factors.Symptoms. The initial symptoms usually appear 1 to 4 weeks after the streptococcal infection has occurred. The actual onset of the disease may be either gradual or sudden. The symptoms vary widely and may be of any degree of severity. The most common initial complaints are a slight fever, a feeling of tiredness, a vague feeling of pain in the limbs, and nosebleeds. If the disease takes an acute form, the fever may reach 40°C (104°F) by the second day and continue for several weeks, although the usual course of the fever is about 2 weeks. On the other hand, the fever may be quite mild.
Joint pain develops at any stage of the disease and lasts from a few hours to several weeks. The joints swell and are tender to the touch. The pain and swelling often subside in one group of joints and arise in another. As the pain subsides, the joints return to normal. Other symptoms may include the spasmodic twitching movements known as sydenham's chorea, especially in girls between the ages of 6 and 11. A rash caused by the fever may appear upon the body. Nodules may be seen or felt under the skin at the elbow, knee, and wrist joints, and along the spine. Among the most serious signs is the development of a heart murmur and cardiac decompensation.Heart Damage. The seriousness of rheumatic fever lies primarily in the permanent damage it can do to the heart. The disease tends to recur, and the recurrent attacks may further weaken the heart. The usual cardiac complication is endocarditis (inflammation of the inner lining of the heart, including the membrane over the valves). As a valve heals, its edges may become so scarred and stiff that they fail to close properly. As a result, blood leaks through the valve when it is closed, producing the sound characteristic of a heart murmur. The valves may become thickened with scar tissue, so that the amount of blood that can flow through the heart is restricted. If there is severe stenosis of the mitral valve and the patient develops symptoms of heart failure" >congestive heart failure, surgery to enlarge the valve (commissurotomy" >mitral commissurotomy) may be indicated.Treatment. The main purposes of treatment are reduction of fever and pain and promotion of the natural healing processes; no means have yet been discovered for fighting the disease directly. Until the introduction of antibiotics and steroids, the chief medications were aspirin and other salicylates. Penicillin is prescribed if there is evidence of an ongoing streptococcal infection or the chance of exposure to streptococcal infection. Prednisone may be prescribed to reduce the pain and swelling in the joints, but its effect on the ultimate course of the disease is controversial. If pain is severe, analgesic drugs may be given. Bed rest is an important part of the treatment, particularly if the disease has caused heart damage. Depending upon the severity of the disease, the patient may be kept in bed for months, and prolonged convalescence may be needed.Patient Care. In the acute phase of rheumatic fever rest is most important to reduce the work load of the heart. The patient should be made as comfortable as possible and disturbed only when necessary. The care should be planned so that long periods of complete rest are possible. Proper positioning with adequate support of the limbs and maintenance of good body alignment is essential to rest and the prevention of complications.
The temperature, pulse, and respirations are checked and recorded at least every 4 hours during the day. The volume and rhythm as well as the rate of the pulse should be noted. The blood pressure is taken at least once a day. Fluid intake may be restricted if there is edema, and sodium intake may also be limited; in either case the reason for the restriction should be explained to the patient. A record is kept of the intake and output. Frequent back care and good oral hygiene are needed to promote comfort and relaxation. When turning the patient, one should be gentle and slow, avoiding unnecessary handling of the joints, which may be tender and swollen. During the convalescent period the patient is allowed a gradual return to physical activities. The amount of activity depends on the physician's orders and is based on the patient's pulse rate, erythrocyte sedimentation rate, and C-reaction protein test. Measures must be taken to avoid respiratory infections, which will retard the progress of the patient. Small, frequent feedings that provide a well-balanced diet are usually preferred to three meals a day, which may be only partially eaten by a patient who is not engaging in a normal amount of physical activity. As the need for rest is decreased, some provision must be made for diversional activities that will help eliminate boredom and keep the child content. The psychologic effects of a prolonged period of enforced dependence on others must also be considered. The parents and the child will need encouragement and help in the transition from total dependence to relative independence. Parents and family members also will need support and guidance during adjustment to home care of the child. Referral to the public health nurse or home health care agency can help provide continuity of care and continued support.Prevention. Preventive care is extremely important, especially when rheumatic fever has once occurred, since it tends to return unless precautionary steps are taken. The patient is given penicillin, orally every day or by intramuscular injection once a month, for many years in order to prevent streptococcal infection. A good nutritious diet and sufficient sleep are important. Administration of antibiotics to all patients with history of rheumatic fever undergoing even minor surgery, including tooth extraction, is important in preventing bacterial endocarditis. Prompt and effective treatment of “strep throat” among the general population has reduced the incidence of rheumatic fever.Pathogenesis of rheumatic fever. Following infection (“strep throat”), an immune response elicited by the streptococci acts on the heart and several other organs, most notably the joints, skin, and central nervous system. In the heart, it causes endocarditis, myocarditis, and pericarditis. From Damjanov, 2000.Manifestations of rheumatic fever. From Betz et al., 1994.rheumatic heart disease the most important and constant manifestation of rheumatic fever, consisting of inflammatory changes with valvular deformities.rheu·mat·ic fe·vera subacute febrile syndrome occurring after group A β-hemolytic streptococcal infection (usually pharyngitis) and mediated by an immune response to the organism; most often seen in children and young adults; features include fever, myocarditis (causing tachycardia and sometimes acute cardiac failure), endocarditis (with valvular incompetence, followed after healing by scarring), and migratory polyarthritis; less often, subcutaneous nodules, erythema marginatum, and Sydenham chorea; relapses can occur after reinfection with streptococci. See: Jones criteria. rheumatic fevern. An acute inflammatory disease occurring after a streptococcal infection such as strep throat, characterized by fever and joint pain and often resulting in permanent heart damage.rheumatic fever Rheumatology The late non-purulent sequelae of a URI by streptococcus group A Diagnosis Major criteria–carditis, chorea, erythema marginatum, polyarthritis, subcutaneous nodules; minor criteria–arthralgia, fever, Hx of previous rheumatic fever, or evidence of cardiac involvement, lab parameters ↑ acute phase reactants, anti-streptolysin O titers, C-reactive protein, ESR, delineated by Jones and later modified. See 'Chinese menu disease, ' Jones criteria. rheu·mat·ic fe·ver (rū-mat'ik fē'vĕr) An inflammatory disease with pyrexia following infection of the throat with group A beta-hemolytic streptococci, occurring primarily in children and young adults, and inducing an immunopathy variably associated with acute migratory polyarthritis, Sydenham chorea, subcutaneous nodules over bony prominences, myocarditis with formation of Aschoff bodies that may cause acute cardiac failure, and endocarditis (frequently followed by scarring of valves, causing stenosis or incompetence); relapses are common if streptococcal infections recur. rheumatic fever A disease, now rare in the Western world but still endemic in developing countries, caused by an ANTIGEN present on certain strains of STREPTOCOCCI. This is closely similar to an antigen on the muscle fibres of the heart and elsewhere. Antibodies are produced by the body and these attack the heart and other parts. Joint involvement is fleeting and unimportant but damage to the heart valves and sometimes the nervous system is permanent. Possible sequels are heart valve leakage (incompetence) or narrowing (stenosis) and ‘St Vitus’ dance’ (SYDENHAM'S CHOREA). Rheumatic fever and subsequent damage can be avoided by treating streptococcal infections with penicillin. Sydenham's chorea is helped by tranquillizer drugs and sedatives.rheu·mat·ic fe·ver (rū-mat'ik fē'vĕr) An inflammatory disease with pyrexia following infection of the throat with group A beta-hemolytic streptococci, occurring primarily in children and young adults. AcronymsSeered flagrheumatic fever Related to rheumatic fever: rheumatoid arthritis, rheumatic heart disease, scarlet feverWords related to rheumatic fevernoun a severe disease chiefly of children and characterized by painful inflammation of the joints and frequently damage to the heart valvesRelated Words- infectious disease
- rheumatic aortitis
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