title: [Clinical study of the relationship between cardiac functions, myocardial preservations and myocardial degenerations in valvular heart diseases].
mesh_terms: D000328:Adult; D000368:Aged; D004452:Echocardiography; D006324:Heart Arrest, Induced; D006349:Heart Valve Diseases / Q000503:physiopathology*; D006439:Hemodynamics; D006801:Humans; D008854:Microscopy, Electron; D008875:Middle Aged; D009206:Myocardium / Q000473:pathology* / Q000648:ultrastructure; D005082:Physical Exertion