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Rheumatic fever primarily affects children between ages 5 and 17 years and occurs approximately 20 days after strep throat. In up to a third of cases, the underlying strep infection may not have caused any symptoms. [citation needed] The rate of development of rheumatic fever in individuals with untreated strep infection is estimated to be 3%.
Rheumatism [2] / ˈ r uː m ə t ɪ z əm / or rheumatic disorders are conditions causing chronic, often intermittent pain affecting the joints or connective tissue. [3] Rheumatism does not designate any specific disorder, but covers at least 200 different conditions, including arthritis and "non-articular rheumatism", also known as "regional pain syndrome" or "soft tissue rheumatism".
Rheumatic fever & heart disease. Author: Tanner Marshall, MS Editor: Rishi Desai, MD, MPH, Tanner Marshall, MS “Rheumatism” is used to describe inflammation in the joints, muscles, and the fibrous tissue, so rheumatic fever is a type of inflammatory disease that can damage the heart tissue, and lead to rheumatic heart disease.
Rheumatology covers more than 100 different complex diseases, collectively known as rheumatic diseases, which includes many forms of arthritis as well as lupus and Sjögren's syndrome. [1] Doctors who have undergone formal training in rheumatology are called rheumatologists .
Recent figures quote the incidence of Acute Rheumatic Fever as 0.6–0.7/1,000 population in the United States and Japan compared with 15–21/1,000 population in Asia and Africa. [32] The prevalence of Acute Rheumatic Fever and Sydenham's Chorea has declined progressively in developed countries over the last decades. [33] [34]
Rheumatic fever is common worldwide and responsible for many cases of damaged heart valves. Chronic rheumatic heart disease is characterized by repeated inflammation with fibrinous resolution. The cardinal anatomic changes of the valve include leaflet thickening, commissural fusion, and shortening and thickening of the tendinous cords. [ 32 ]
The cardiac manifestations of rheumatic fever are in the form of focal inflammatory involvement of the interstitial tissue in all 3 layers of the heart, a pathological change named pancarditis. The pathognomonic feature of pancarditis in the case of rheumatic heart disease is the presence of Aschoff nodules or Aschoff bodies.
Tonsillitis is inflammation of the tonsils in the upper part of the throat.It can be acute or chronic. [8] [9] [2] Acute tonsillitis typically has a rapid onset. [10]Symptoms may include sore throat, fever, enlargement of the tonsils, trouble swallowing, and enlarged lymph nodes around the neck.