title: [Modification of clinical classification of heart failure with quantitative evaluation of functional state].
abstract: Definite dissociation exists between severity of clinical symptoms of heart failure and degree of cardiac dysfunction. Comparative analysis of existing heart failure classifications reveals low degree of congruence in evaluation of patient's state by different experts. This disagreement is mainly caused by limited number of gradations in NYHA classification and descriptive character of information. That is why supplementation of current classification with quantitative assessment of functional state by means of introduction of precise and easily obtainable statements is required. A modification of 6 min walk test is suggested for this purpose. The paper contains methodology of the test and calculations necessary for assessment of working capacity (in joules) and intensity of work (in watts). Possibility of evaluation of results of cardiovascular surgery is especially stressed.
authors.forename: G I
authors.initials: GI
authors.lastname: Sidorenko
authors.forename: A V
authors.initials: AV
authors.lastname: Frolov
mesh_terms: D004185:Disability Evaluation; D005080:Exercise Test; D006333:Heart Failure / Q000145:classification / Q000175:diagnosis / Q000503:physiopathology; D006801:Humans; D012720:Severity of Illness Index