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PubMed1992

Frequency of D8/17 B lymphocyte alloantigen in north Indian patients with rheumatic heart disease.

Ninety patients with rheumatic heart disease and 50 age- and sex-matched healthy human volunteers representing a North Indian population were typed for the B cell alloantigen D8/17 using a monoclonal antibody and a single step immunofluorescence technique. This alloantigen was expressed in 66.44% patients with RHD as compared with 14% of the normal population. A high relative risk (RR = 11.13) indicated a strong association of D8/17 B cell alloantigen with rheumatic heart disease. Increase in the frequency of the marker was observed with increasing age up to the fifth decade (40-49 years) in these patients. However, the frequency of this alloantigen, in the present study, in North Indian patients with rheumatic heart disease is lower than that reported in the American population.

Adolescent↗
PubMed2006

Prevalence of chronic rheumatic heart disease in Chinese adults.

OBJECTIVES: Rheumatic heart disease continues to be a common health problem in the developing countries. Though there is evidence indicating that rheumatic heart disease prevalence in China has decreased since the 1950s, no objective assessment of its present prevalence has been published. The study was designed to investigate the prevalence of chronic rheumatic heart disease in China. METHODS: We performed a community population based investigation from October 2001 to February 2002 in nine communities of nine provinces in China by using a multistage, random sample design. Rheumatic heart disease was diagnosed by echocardiographic imaging. Long-axis views of the mitral valve, color flow recordings were used to search for mitral and aortic regurgitations. M-mode and two-dimensional short- and long-axis views of the aortic root and left atrium were recorded for supporting the diagnosis. RESULTS: Of 9124 participants, 8652 completed the questionnaires and 8080 had comprehensive echocardiographic examinations. We found that 15 subjects had definite echocardiographic evidence of rheumatic heart disease. The rough prevalence of rheumatic heart disease was 186/100,000 adults (2 in 1000 adults). CONCLUSIONS: Rheumatic heart disease affected approximately 2 million middle-aged to elderly Chinese, thus constituting a significant health burden. We investigated only urban and suburban communities, the result may underestimate the real prevalence of the disease in China.

Adult↗
PubMed1993

[Comparison of hospital prevalence of rheumatic heart diseases and acute rheumatic arthritis in France and Africa].

This study reports the results of a multicentre enquiry performed in France in 1990 which included 41,242 adults hospitalised in Cardiology Units, 33,907 children hospitalised in Pediatric departments and 8,868 soldiers. A comparative enquiry was also carried out in North Africa (Tunis) and West Africa (Abidjan, Ouagadougou). The results of the French arm of the enquiry showed that rheumatic heart disease (RHD) has become very rare in adults (3.1% of all cardiac disease) and that it tends to occur in older subjects (average 54.4 years of age). There is practically no RHD in young adults. This decreased prevalence of RHD is confirmed in children in whom this diagnosis represents only 0.04% of cases of all cardiac disease--of which 87.5% are of extra-European origin. In contrast, there is a high frequency of RHD in Tunisia (29.3%) and West Africa (13.2% in Abidjan and 13% in Ouagadougou). The disease remains active as is shown by the age of affected adults in Africa (average 21 and 27 years of age). The results also show a reduction to a very low prevalence of acute rheumatic fever in French pediatric departments (0.005%). The authors discuss the reasons for the persistence of endemic infection in Africa: virulence of the streptococcus, predisposing factors (HLA group?), geographic factors and, above all, socioeconomic factors and difficulties in obtaining treatment and prophylaxis. A movement of international cooperation is suggested in order to combat RHD in Africa, especially with regards to its prevention in childhood.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1999

Rheumatic fever and rheumatic heart disease: an overview.

Rheumatic fever and rheumatic heart disease are still major causes of disease in the developing world today. Diagnosis and prevention, particularly secondary prophylaxis, will become even more important as increased urbanization, with greater population pressure and economic problems, increase the prevalence. The number of children and young adults in their most crucial years of life who would avoid chronic disease and death would more than repay the investment of time and resources.

Adult↗
PubMed1979

Epidemiologic aspects of rheumatic fever and rheumatic heart disease in Israel.

Rheuamtic fever and rheumatic heart disease are still important public health problems in Israel. Rheumatic fever is a seasonal disease, more common during the cold months of the year. A high incidence of rheumatic fever followed the immigration waves of the 1950s, in contrast with a decline in new cases over the last 10 years among both Jews and non-Jews. In the same period (1950s to 1975), a decline in the numbers of hospitalized patients was also reported. After 1970 mortality rates of rheumatic fever dropped to zero. The prevalence of rheumatic heart disease has declined in children, as shown in school studies, but in adults, a different trend is seen. The number of hospitalized patients has increased, in parallel with the increasing population, to more than 3,000 hospitalized patients per year. While a plateau curve is seen in the mortality rates of males of all ethnic origins studied, among females there is a slight decline in mortality. The discrepancy between the decline in occurrence of rheumatic fever and rheumatic heart disease in children and the increase in prevalence of rheumatic heart disease in adults is explained by the massive immigration from countries with a high prevalence of rheumatic heart disease.

Adolescent↗