title: [Diagnostic value of Tei index in detection of chronic heart failure in elderly patients].
abstract: OBJECTIVE
  To evaluate diagnostic value of Tei index in detection of chronic heart failure (CHF) in elderly outpatients.
  
  
  METHODS
  Examination of 101 CHD patients of the study group and 46 control patients free of heart disease aged over 60 years included registration of doppler spectra and calculation of the Tei index which is a ratio of isovolumic contraction time plus isovolumic relaxation time to left ventricular (LV) ejection time and can be calculated using dopplerography.
  
  
  RESULTS
  Mean Tei index in CHF patients was significantly higher than in control patients. The Tei index significantly exceeded that in the controls in CHD patients with both low and normal LV ejection fraction. In healthy controls over 60 years of age Tei index varied from 0.40 to 0.59 and averaged 0.5 +/- 0.05. Optimal diagnostic ability to detect CHF in the elderly is shown for Tei index 0.56. For this value sensitivity of the index reached 90%, specificity - 87%.
  
  
  CONCLUSIONS
  Calculation of the Tei index is possible in all the patients irrespective of quality of heart and LV endocardium visualization in echocardiography.
authors.forename: B Ia
authors.initials: BIa
authors.lastname: Bart
authors.forename: V N
authors.initials: VN
authors.lastname: Larina
authors.forename: M N
authors.initials: MN
authors.lastname: Alekhin
authors.forename: E N
authors.initials: EN
authors.lastname: Dergunova
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002908:Chronic Disease; D003971:Diastole; D015150:Echocardiography, Doppler / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006333:Heart Failure / Q000000981:diagnostic imaging* / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction / Q000502:physiology*; D011379:Prognosis; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D013318:Stroke Volume / Q000502:physiology; D016277:Ventricular Function, Left / Q000502:physiology*