title: [Diagnostic and prognostic value of quantitative indicators of 12 ECG leads in ischemic heart disease].
abstract: The study was undertaken to examine 35 patients with chronic coronary heart disease and 20 patients with neurocirculatory dystonia concurrent with the cardialgic syndrome, the latter were enrolled into a control group. Detection of sigma R in the standard leads of resting ECG and at the peak of atrial pacing made it possible to single out groups of chronic coronary heart disease patients, which differed in clinical manifestations of the disease, myocardial contractility, hemodynamics, and myocardial lactate extraction. In patients with chronic coronary heart disease ti is recommended to use ECG measurements (sigma R and nST) in the standard leads during loading tests to give a comprehensive characterization of the pump function and the severity of myocardial ischemia, the prognosis of the natural history of the disease and risk for myocardial infarction. To enhance the sensitivity and specificity of loading tests, it is recommended to take into account higher sigma R in combination with ST segment depression when the results of the tests are assessed.
authors.forename: A G
authors.initials: AG
authors.lastname: Matevosian
authors.forename: V D
authors.initials: VD
authors.lastname: Vakhliaev
authors.forename: E V
authors.initials: EV
authors.lastname: Pomerantsev
authors.forename: A L
authors.initials: AL
authors.lastname: Syrkin
mesh_terms: D000328:Adult; D002908:Chronic Disease; D003327:Coronary Disease / Q000175:diagnosis* / Q000503:physiopathology; D004562:Electrocardiography / Q000379:methods*; D006439:Hemodynamics / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction / Q000502:physiology*; D011379:Prognosis; D012720:Severity of Illness Index
vernacular_title: Diagnosticheskoe i prognosticheskoe znachenie kolichestvennykh pokazateleĭ 12 otvedeniĭ EKG pri ishemicheskoĭ bolezni serdtsa.