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[Diagnostic value of Tei index in detection of chronic heart failure in elderly patients]
Insights
The Tei index effectively detects chronic heart failure (CHF) in elderly patients. This simple echocardiographic measurement shows high sensitivity and specificity for diagnosing heart failure in older adults.
Area of Science:
- Cardiology
- Geriatrics
- Diagnostic Imaging
Background:
- Chronic heart failure (CHF) is a significant health concern in the elderly population.
- Accurate and accessible diagnostic tools are crucial for timely CHF management in older adults.
Purpose of the Study:
- To assess the diagnostic utility of the Tei index for detecting chronic heart failure (CHF) in elderly outpatients.
- To determine the sensitivity and specificity of the Tei index in this demographic.
Main Methods:
- The study involved 101 elderly patients with coronary heart disease (CHD) and 46 age-matched controls without heart disease.
- Doppler echocardiography was used to calculate the Tei index, defined as the ratio of isovolumic contraction time plus isovolumic relaxation time to left ventricular ejection time.
Main Results:
- The mean Tei index was significantly higher in CHF patients compared to controls.
- The Tei index demonstrated high diagnostic accuracy for CHF, with a sensitivity of 90% and specificity of 87% at an optimal cutoff of 0.56.
- The index was elevated in CHD patients with both low and normal left ventricular ejection fraction.
Conclusions:
- The Tei index is a valuable and reliable echocardiographic parameter for diagnosing chronic heart failure in elderly outpatients.
- Its calculation is feasible across a wide range of echocardiographic visualization qualities, making it broadly applicable.
Aim:
To evaluate diagnostic value of Tei index in detection of chronic heart failure (CHF) in elderly outpatients.
Material And 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%.
Conclusion:
Calculation of the Tei index is possible in all the patients irrespective of quality of heart and LV endocardium visualization in echocardiography.
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