1. Conclusions It suggests that in China, acute rheumatic carditis is an important etiology of valve prolapse, especially for anterior mitral leaflet prolapse.

2. Conclusion The clildren with rheumatic carditis had atypical system and sign.

3. Microscopically, acute rheumatic carditis is marked by a peculiar form of granulomatous inflammation with so-called "Aschoff nodules" seen best in myocardium.

4. Objective To research the specificity of antigen from group A streptococcal cell membrane in procoagulant activity assay for the diagnosis of rheumatic carditis.

5. Methods Retrospectively analyze the clinical data of 54 acute viral carditis patients.

6. Objective To study the correlation features of mitral valve prolapse (MVP) with acute rheumatic carditis (ARC).

7. Conclusion High-dose immunoglobulin is effective in the treatment of moderate to severe viral carditis.

8. Conclusion Echocardiographic examination plays an important role in the diagnosis and follow-up of rheumatic carditis(RC) in children.

9. Conclusion LAIP is of important significance in the diagnosis of rheumatic carditis.