Related Experiment Videos
Rheumatic heart disease in childhood: comparative study between Japan and Thailand
Insights
Rheumatic heart disease incidence is 100x higher in Thailand than Japan. Childhood mitral stenosis also presents differently, developing earlier in Thailand, likely due to socioeconomic factors.
Area of Science:
- Cardiology
- Epidemiology
- Public Health
Background:
- Rheumatic fever and subsequent rheumatic heart disease (RHD) are significant global health concerns.
- Variations in RHD prevalence and clinical presentation exist between different geographical regions.
- Socioeconomic factors are hypothesized to influence the epidemiology of RHD.
Purpose of the Study:
- To compare the incidence and clinical characteristics of rheumatic fever and RHD in Japan and Thailand.
- To investigate differences in the presentation of mitral stenosis in childhood between the two countries.
- To explore the potential role of socioeconomic disparities in observed epidemiological differences.
Main Methods:
- A comparative study design was employed.
- Data on RHD incidence and patient demographics were collected and analyzed.
- Clinical patterns of mitral stenosis and mitral insufficiency in pediatric patients were assessed.
Main Results:
- A striking 100-fold higher incidence of RHD was observed in Thailand compared to Japan.
- In Japan, RHD commonly presented as mild mitral insufficiency, with mitral stenosis being rare.
- In Thailand, mitral stenosis occurred in 5% of RHD cases and tended to develop early after rheumatic fever episodes.
Conclusions:
- Significant epidemiological and clinical disparities in RHD exist between Japan and Thailand.
- Socioeconomic status is a likely contributing factor to the observed differences in RHD burden and disease course.
- Further research into socioeconomic determinants of RHD is warranted for targeted public health interventions.
Abstract:
This report showed the comparative study of the rheumatic fever and rheumatic heart disease in Japan and Thailand. At first, there is remarkable difference about the incidence of the rheumatic heart disease. The incidence of the rheumatic heart disease in Thailand was one hundred times that in Japan. Secondly, there is particular difference about the course of mitral stenosis in childhood. In Japan common pattern of rheumatic heart disease was slight mitral insufficiency and mitral stenosis was seldom. In Thailand mitral stenosis was observed in 5% on rheumatic heart disease, and mitral stenosis developed early following an attack of rheumatic fever. These differences were supposed due to the socio-economic state in each country.