title: [Evaluation of the diagnostic effectiveness of the indicators of left atrial myocardial function in intraoperative cardiac weakness in patients with mitral valve defects].
abstract: Excursions of the left-atrial myocardium were recorded by tensiometric transducers in patients with mitral valvular disease. The structural features of myocardial excursions were evaluated as symptoms. Myocardial shortening in P-Q interval was considered a negative symptom in relation to heart weakness, shortening in T-Q interval as an indefinite symptom, and shortening in Q-T interval as a positive symptom. Appraisal of the sensitivity and specificity of these symptoms revealed their high diagnostic efficacy.
authors.forename: V F
authors.initials: VF
authors.lastname: Iakovlev
authors.forename: V A
authors.initials: VA
authors.lastname: Sandrikov
authors.forename: I I
authors.initials: II
authors.lastname: Dement'eva
authors.forename: I I
authors.initials: II
authors.lastname: Shevelev
authors.forename: L E
authors.initials: LE
authors.lastname: Solovova
mesh_terms: D000293:Adolescent; D000328:Adult; D004562:Electrocardiography; D005260:Female; D006321:Heart / Q000503:physiopathology*; D006325:Heart Atria / Q000503:physiopathology; D006801:Humans; D007432:Intraoperative Period; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000503:physiopathology / Q000601:surgery*; D008946:Mitral Valve Stenosis / Q000503:physiopathology / Q000601:surgery*
vernacular_title: Otsenka diagnosticheskoĭ éffektivnosti pokazateleĭ funktsii miokarda levogo predserdiia v otnoshenii intraoperatsionnoĭ serdechnoĭ slabosti u bol'nykh porokami mitral'nogo klapana.